Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
68492 周奕辰 初级冒泡排序 C++ Compile Error 0 MS 0 KB 379 2024-03-23 15:19:06

Tests(0/0):


Code:

#include<iostream> #include<algorithm> using namespace std; int main(){ int n; cin > n; int a[n]; for(int i=0;i<n;i++) { cin << a[i]; } for(int i=0;i<n;i++) { for(int j=i+1;j<n;j++) { if(a[i]<a[j]) { swap(a[i],a[j]; } } } return 0; }


Run Info:

Main.cc: In function 'int main()':
Main.cc:6:9: error: no match for 'operator>' (operand types are 'std::istream {aka std::basic_istream}' and 'int')
     cin > n;
         ^
Main.cc:6:9: note: candidate: operator>(int, int) 
Main.cc:6:9: note:   no known conversion for argument 1 from 'std::istream {aka std::basic_istream}' to 'int'
In file included from /usr/include/c++/5/bits/stl_algobase.h:64:0,
                 from /usr/include/c++/5/bits/char_traits.h:39,
                 from /usr/include/c++/5/ios:40,
                 from /usr/include/c++/5/ostream:38,
                 from /usr/include/c++/5/iostream:39,
                 from Main.cc:1:
/usr/include/c++/5/bits/stl_pair.h:233:5: note: candidate: template constexpr bool std::operator>(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)
     operator>(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
     ^
/usr/include/c++/5/bits/stl_pair.h:233:5: note:   template argument deduction/substitution failed:
Main.cc:6:11: note:   'std::istream {aka std::basic_istream}' is not derived from 'const std::pair<_T1, _T2>'
     cin > n;
           ^
In file included from /usr/include/c++/5/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/5/bits/char_traits.h:39,
                 from /usr/include/c++/5/ios:40,
                 from /usr/include/c++/5/ostream:38,
                 from /usr/include/c++/5/iostream:39,
                 from Main.cc:1:
/usr/include/c++/5/bits/stl_iterator.h:310:5: note: candidate: template bool std::operator>(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)
     operator>(const reverse_iterator<_Iterator>& __x,
     ^
/usr/include/c++/5/bits/stl_iterator.h:310:5: note:   template argument deduction/substitution failed:
Main.cc:6:11: note:   'std::istream {aka std::basic_istream}' is not derived from 'const std::reverse_iterator<_Iterator>'
     cin > n;
           ^
In file included from /usr/include/c++/5/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/5/bits/char_traits.h:39,
                 from /usr/include/c++/5/ios:40,
                 from /usr/include/c++/5/ostream:38,
                 from /usr/include/c++/5/iostream:39,
                 from Main.cc:1:
/usr/include/c++/5/bits/stl_iterator.h:360:5: note: candidate: template bool std::operator>(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)
     operator>(const reverse_iterator<_IteratorL>& __x,
     ^
/usr/include/c++/5/bits/stl_iterator.h:360:5: note:   template argument deduction/substitution failed:
Main.cc:6:11: note:   'std::istream {aka std::basic_istream}' is not derived from 'const std::reverse_iterator<_Iterator>'
     cin > n;
           ^
In file included from /usr/include/c++/5/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/5/bits/char_traits.h:39,
                 from /usr/include/c++/5/ios:40,
                 from /usr/include/c++/5/ostream:38,
                 from /usr/include/c++/5/iostream:39,
                 from Main.cc:1:
/usr/include/c++/5/bits/stl_iterator.h:1113:5: note: candidate: template bool std::operator>(const std::move_iterator<_Iterator>&, const std::move_iterator<_IteratorR>&)
     operator>(const move_iterator<_IteratorL>& __x,
     ^
/usr/include/c++/5/bits/stl_iterator.h:1113:5: note:   template argument deduction/substitution failed:
Main.cc:6:11: note:   'std::istream {aka std::basic_istream}' is not derived from 'const std::move_iterator<_Iterator>'
     cin > n;
           ^
In file included from /usr/include/c++/5/bits/stl_algobase.h:67:0,
                 from /usr/include/c++/5/bits/char_traits.h:39,
                 from /usr/include/c++/5/ios:40,
                 from /usr/include/c++/5/ostream:38,
                 from /usr/include/c++/5/iostream:39,
                 from Main.cc:1:
/usr/include/c++/5/bits/stl_iterator.h:1119:5: note: candidate: template bool std::operator>(const std::move_iterator<_Iterator>&, const std::move_iterator<_Iterator>&)
     operator>(const move_iterator<_Iterator>& __x,
     ^
/usr/include/c++/5/bits/stl_iterator.h:1119:5: note:   template argument deduction/substitution failed:
Main.cc:6:11: note:   'std::istream {aka std::basic_istream}' is not derived from 'const std::move_iterator<_Iterator>'
     cin > n;
           ^
In file included from /usr/include/c++/5/string:52:0,
                 from /usr/include/c++/5/bits/locale_classes.h:40,
                 from /usr/include/c++/5/bits/ios_base.h:41,
                 from /usr/include/c++/5/ios:42,
                 from /usr/include/c++/5/ostream:38,
                 from /usr/include/c++/5/iostream:39,
                 from Main.cc:1:
/usr/include/c++/5/bits/basic_string.h:5024:5: note: candidate: template bool std::operator>(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
     operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
     ^
/usr/include/c++/5/bits/basic_string.h:5024:5: note:   template argument deduction/substitution failed:
Main.cc:6:11: note:   'std::istream {aka std::basic_istream}' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>'
     cin > n;
           ^
In file included from /usr/include/c++/5/string:52:0,
                 from /usr/include/c++/5/bits/locale_classes.h:40,
                 from /usr/include/c++/5/bits/ios_base.h:41,
                 from /usr/include/c++/5/ios:42,
                 from /usr/include/c++/5/ostream:38,
                 from /usr/include/c++/5/iostream:39,
                 from Main.cc:1:
/usr/include/c++/5/bits/basic_string.h:5036:5: note: candidate: template bool std::operator>(const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&, const _CharT*)
     operator>(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
     ^
/usr/include/c++/5/bits/basic_string.h:5036:5: note:   template argument deduction/substitution failed:
Main.cc:6:11: note:   'std::istream {aka std::basic_istream}' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>'
     cin > n;
           ^
In file included from /usr/include/c++/5/string:52:0,
                 from /usr/include/c++/5/bits/locale_classes.h:40,
                 from /usr/include/c++/5/bits/ios_base.h:41,
                 from /usr/include/c++/5/ios:42,
                 from /usr/include/c++/5/ostream:38,
                 from /usr/include/c++/5/iostream:39,
                 from Main.cc:1:
/usr/include/c++/5/bits/basic_string.h:5048:5: note: candidate: template bool std::operator>(const _CharT*, const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
     operator>(const _CharT* __lhs,
     ^
/usr/include/c++/5/bits/basic_string.h:5048:5: note:   template argument deduction/substitution failed:
Main.cc:6:11: note:   mismatched types 'const _CharT*' and 'std::basic_istream'
     cin > n;
           ^
In file included from /usr/include/c++/5/vector:64:0,
                 from /usr/include/c++/5/bits/random.h:34,
                 from /usr/include/c++/5/random:49,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/stl_vector.h:1541:5: note: candidate: template bool std::operator>(const std::vector<_Tp, _Alloc>&, const std::vector<_Tp, _Alloc>&)
     operator>(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
     ^
/usr/include/c++/5/bits/stl_vector.h:1541:5: note:   template argument deduction/substitution failed:
Main.cc:6:11: note:   'std::istream {aka std::basic_istream}' is not derived from 'const std::vector<_Tp, _Alloc>'
     cin > n;
           ^
Main.cc:10:13: error: no match for 'operator<<' (operand types are 'std::istream {aka std::basic_istream}' and 'int')
         cin << a[i];
             ^
Main.cc:10:13: note: candidate: operator<<(int, int) 
Main.cc:10:13: note:   no known conversion for argument 1 from 'std::istream {aka std::basic_istream}' to 'int'
In file included from /usr/include/c++/5/string:52:0,
                 from /usr/include/c++/5/bits/locale_classes.h:40,
                 from /usr/include/c++/5/bits/ios_base.h:41,
                 from /usr/include/c++/5/ios:42,
                 from /usr/include/c++/5/ostream:38,
                 from /usr/include/c++/5/iostream:39,
                 from Main.cc:1:
/usr/include/c++/5/bits/basic_string.h:5172:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
     operator<<(basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/basic_string.h:5172:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/bits/ios_base.h:46:0,
                 from /usr/include/c++/5/ios:42,
                 from /usr/include/c++/5/ostream:38,
                 from /usr/include/c++/5/iostream:39,
                 from Main.cc:1:
/usr/include/c++/5/system_error:209:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::error_code&)
     operator<<(basic_ostream<_CharT, _Traits>& __os, const error_code& __e)
     ^
/usr/include/c++/5/system_error:209:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/iostream:39:0,
                 from Main.cc:1:
/usr/include/c++/5/ostream:497:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, _CharT)
     operator<<(basic_ostream<_CharT, _Traits>& __out, _CharT __c)
     ^
/usr/include/c++/5/ostream:497:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/iostream:39:0,
                 from Main.cc:1:
/usr/include/c++/5/ostream:502:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, char)
     operator<<(basic_ostream<_CharT, _Traits>& __out, char __c)
     ^
/usr/include/c++/5/ostream:502:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/iostream:39:0,
                 from Main.cc:1:
/usr/include/c++/5/ostream:508:5: note: candidate: template std::basic_ostream& std::operator<<(std::basic_ostream&, char)
     operator<<(basic_ostream& __out, char __c)
     ^
/usr/include/c++/5/ostream:508:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/iostream:39:0,
                 from Main.cc:1:
/usr/include/c++/5/ostream:514:5: note: candidate: template std::basic_ostream& std::operator<<(std::basic_ostream&, signed char)
     operator<<(basic_ostream& __out, signed char __c)
     ^
/usr/include/c++/5/ostream:514:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/iostream:39:0,
                 from Main.cc:1:
/usr/include/c++/5/ostream:519:5: note: candidate: template std::basic_ostream& std::operator<<(std::basic_ostream&, unsigned char)
     operator<<(basic_ostream& __out, unsigned char __c)
     ^
/usr/include/c++/5/ostream:519:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/iostream:39:0,
                 from Main.cc:1:
/usr/include/c++/5/ostream:539:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const _CharT*)
     operator<<(basic_ostream<_CharT, _Traits>& __out, const _CharT* __s)
     ^
/usr/include/c++/5/ostream:539:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/ostream:638:0,
                 from /usr/include/c++/5/iostream:39,
                 from Main.cc:1:
/usr/include/c++/5/bits/ostream.tcc:321:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const char*)
     operator<<(basic_ostream<_CharT, _Traits>& __out, const char* __s)
     ^
/usr/include/c++/5/bits/ostream.tcc:321:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/iostream:39:0,
                 from Main.cc:1:
/usr/include/c++/5/ostream:556:5: note: candidate: template std::basic_ostream& std::operator<<(std::basic_ostream&, const char*)
     operator<<(basic_ostream& __out, const char* __s)
     ^
/usr/include/c++/5/ostream:556:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/iostream:39:0,
                 from Main.cc:1:
/usr/include/c++/5/ostream:569:5: note: candidate: template std::basic_ostream& std::operator<<(std::basic_ostream&, const signed char*)
     operator<<(basic_ostream& __out, const signed char* __s)
     ^
/usr/include/c++/5/ostream:569:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/iostream:39:0,
                 from Main.cc:1:
/usr/include/c++/5/ostream:574:5: note: candidate: template std::basic_ostream& std::operator<<(std::basic_ostream&, const unsigned char*)
     operator<<(basic_ostream& __out, const unsigned char* __s)
     ^
/usr/include/c++/5/ostream:574:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/iostream:39:0,
                 from Main.cc:1:
/usr/include/c++/5/ostream:628:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&&, const _Tp&)
     operator<<(basic_ostream<_CharT, _Traits>&& __os, const _Tp& __x)
     ^
/usr/include/c++/5/ostream:628:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:49:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.h:1269:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::independent_bits_engine<_RandomNumberEngine, __w, _UIntType>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.h:1269:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:477:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::mersenne_twister_engine<_UIntType, __w, __n, __m, __r, __a, __u, __d, __s, __b, __t, __c, __l, __f>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:477:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:877:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::uniform_int_distribution<_IntType>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:877:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:936:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::uniform_real_distribution<_IntType>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:936:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:2123:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::cauchy_distribution<_RealType>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:2123:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:998:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::bernoulli_distribution&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:998:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:1898:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::normal_distribution<_RealType>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:1898:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:1080:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::geometric_distribution<_IntType>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:1080:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:2444:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::gamma_distribution<_RealType>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:2444:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:1731:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::exponential_distribution<_RealType>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:1731:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:2522:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::weibull_distribution<_RealType>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:2522:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:2598:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::extreme_value_distribution<_RealType>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:2598:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:156:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::linear_congruential_engine<_UIntType, __a, __c, __m>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:156:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:632:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::subtract_with_carry_engine<_UIntType, __w, __s, __r>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:632:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:702:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::discard_block_engine<_RandomNumberEngine, __p, __r>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:702:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:831:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::shuffle_order_engine<_RandomNumberEngine, __k>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:831:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:1195:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::negative_binomial_distribution<_IntType>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:1195:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:1400:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::poisson_distribution<_IntType>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:1400:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:1667:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::binomial_distribution<_IntType>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:1667:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:1963:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::lognormal_distribution<_RealType>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:1963:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:2036:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::chi_squared_distribution<_RealType>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:2036:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:2200:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::fisher_f_distribution<_RealType>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:2200:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:2275:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::student_t_distribution<_RealType>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:2275:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:2734:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::discrete_distribution<_IntType>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:2734:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:2944:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::piecewise_constant_distribution<_RealType>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:2944:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
In file included from /usr/include/c++/5/random:51:0,
                 from /usr/include/c++/5/bits/stl_algo.h:66,
                 from /usr/include/c++/5/algorithm:62,
                 from Main.cc:2:
/usr/include/c++/5/bits/random.tcc:3160:5: note: candidate: template std::basic_ostream<_CharT, _Traits>& std::operator<<(std::basic_ostream<_CharT, _Traits>&, const std::piecewise_linear_distribution<_RealType>&)
     operator<<(std::basic_ostream<_CharT, _Traits>& __os,
     ^
/usr/include/c++/5/bits/random.tcc:3160:5: note:   template argument deduction/substitution failed:
Main.cc:10:19: note:   'std::istream {aka std::basic_istream}' is not derived from 'std::basic_ostream<_CharT, _Traits>'
         cin << a[i];
                   ^
Main.cc:18:31: error: expected ')' before ';' token
                 swap(a[i],a[j];
                               ^