Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
125014 李俊博 字符串中最大的数字II C++ Compile Error 0 MS 0 KB 692 2025-07-13 09:49:24

Tests(0/0):


Code:

#include<bits/stdc++.h> using namespace std; char a[100]; int main(){ /* cin>>a; cin>>b; int ar=strlen(a); int br=strlen(b); if(a>b){ cout<<a; } else if(a<b){ cout<<b; } else{ int f=strcmp(a,b); if(f==1){ cout<<a; } else if(f==-1){ cout<<b; } else{ cout<<"="; } } 字符串中最大的数字 long long n; cin>>n; int m=0; if(n<0){ n=-1*n; } while(n>0){ if(m<n%10){ m=n%10; } n=n/10; } cout<<m; */ cin>>a; char m='0'; int l=strlen(a); int i=0; if(a[0]=='-'){ i=1; } for(i;i<l;i++){ if([i]>m){ m=a[i]; } } return 0; }


Run Info:

Main.cc: In function 'int main()':
Main.cc:52:8: warning: statement has no effect [-Wunused-value]
   for(i;i' token
    if([i]>m){
          ^
Main.cc: In function 'int main()':
Main.cc:53:10: error: no match for 'operator>' (operand types are 'main()::' and 'char')
In file included from /usr/include/c++/5/regex:61:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:108,
                 from Main.cc:1:
/usr/include/c++/5/bits/regex.h:992:5: note: candidate: template bool std::__cxx11::operator>(const std::__cxx11::sub_match<_BiIter>&, const std::__cxx11::sub_match<_BiIter>&)
     operator>(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
     ^
/usr/include/c++/5/bits/regex.h:992:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/regex:61:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:108,
                 from Main.cc:1:
/usr/include/c++/5/bits/regex.h:1053:5: note: candidate: template bool std::__cxx11::operator>(std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&, const std::__cxx11::sub_match<_BiIter>&)
     operator>(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
     ^
/usr/include/c++/5/bits/regex.h:1053:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/regex:61:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:108,
                 from Main.cc:1:
/usr/include/c++/5/bits/regex.h:1133:5: note: candidate: template bool std::__cxx11::operator>(const std::__cxx11::sub_match<_BiIter>&, std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&)
     operator>(const sub_match<_Bi_iter>& __lhs,
     ^
/usr/include/c++/5/bits/regex.h:1133:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/regex:61:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:108,
                 from Main.cc:1:
/usr/include/c++/5/bits/regex.h:1207:5: note: candidate: template bool std::__cxx11::operator>(const typename std::iterator_traits<_Iter>::value_type*, const std::__cxx11::sub_match<_BiIter>&)
     operator>(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
     ^
/usr/include/c++/5/bits/regex.h:1207:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'char'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/regex:61:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:108,
                 from Main.cc:1:
/usr/include/c++/5/bits/regex.h:1281:5: note: candidate: template bool std::__cxx11::operator>(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)
     operator>(const sub_match<_Bi_iter>& __lhs,
     ^
/usr/include/c++/5/bits/regex.h:1281:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/regex:61:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:108,
                 from Main.cc:1:
/usr/include/c++/5/bits/regex.h:1361:5: note: candidate: template bool std::__cxx11::operator>(const typename std::iterator_traits<_Iter>::value_type&, const std::__cxx11::sub_match<_BiIter>&)
     operator>(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
     ^
/usr/include/c++/5/bits/regex.h:1361:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'char'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/regex:61:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:108,
                 from Main.cc:1:
/usr/include/c++/5/bits/regex.h:1441:5: note: candidate: template bool std::__cxx11::operator>(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)
     operator>(const sub_match<_Bi_iter>& __lhs,
     ^
/usr/include/c++/5/bits/regex.h:1441:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/future:40:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:103,
                 from Main.cc:1:
/usr/include/c++/5/thread:223:3: note: candidate: bool std::operator>(std::thread::id, std::thread::id)
   operator>(thread::id __x, thread::id __y) noexcept
   ^
/usr/include/c++/5/thread:223:3: note:   no known conversion for argument 1 from 'main()::' to 'std::thread::id'
In file included from /usr/include/c++/5/forward_list:38:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:102,
                 from Main.cc:1:
/usr/include/c++/5/bits/forward_list.h:1378:5: note: candidate: template bool std::operator>(const std::forward_list<_Tp, _Alloc>&, const std::forward_list<_Tp, _Alloc>&)
     operator>(const forward_list<_Tp, _Alloc>& __lx,
     ^
/usr/include/c++/5/bits/forward_list.h:1378:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::forward_list<_Tp, _Alloc>'
    if([i]>m){
           ^
In file included from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:94:0,
                 from Main.cc:1:
/usr/include/c++/5/valarray:1182:1: note: candidate: template std::_Expr, typename std::__fun::result_type> std::operator>(const _Tp&, const std::valarray<_Tp>&)
 _DEFINE_BINARY_OPERATOR(>, __greater)
 ^
/usr/include/c++/5/valarray:1182:1: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   mismatched types 'const std::valarray<_Tp>' and 'char'
    if([i]>m){
           ^
In file included from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:94:0,
                 from Main.cc:1:
/usr/include/c++/5/valarray:1182:1: note: candidate: template std::_Expr, typename std::__fun::result_type> std::operator>(const std::valarray<_Tp>&, const _Tp&)
 _DEFINE_BINARY_OPERATOR(>, __greater)
 ^
/usr/include/c++/5/valarray:1182:1: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::valarray<_Tp>'
    if([i]>m){
           ^
In file included from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:94:0,
                 from Main.cc:1:
/usr/include/c++/5/valarray:1182:1: note: candidate: template std::_Expr, typename std::__fun::result_type> std::operator>(const std::valarray<_Tp>&, const std::valarray<_Tp>&)
 _DEFINE_BINARY_OPERATOR(>, __greater)
 ^
/usr/include/c++/5/valarray:1182:1: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::valarray<_Tp>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/valarray:587:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:94,
                 from Main.cc:1:
/usr/include/c++/5/bits/valarray_after.h:417:5: note: candidate: template std::_Expr, typename std::__fun::result_type> std::operator>(const std::valarray&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)
     _DEFINE_EXPR_BINARY_OPERATOR(>, __greater)
     ^
/usr/include/c++/5/bits/valarray_after.h:417:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   mismatched types 'const std::_Expr<_Dom1, typename _Dom1::value_type>' and 'char'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/valarray:587:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:94,
                 from Main.cc:1:
/usr/include/c++/5/bits/valarray_after.h:417:5: note: candidate: template std::_Expr, typename std::__fun::result_type> std::operator>(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::valarray&)
     _DEFINE_EXPR_BINARY_OPERATOR(>, __greater)
     ^
/usr/include/c++/5/bits/valarray_after.h:417:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/valarray:587:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:94,
                 from Main.cc:1:
/usr/include/c++/5/bits/valarray_after.h:417:5: note: candidate: template std::_Expr, typename std::__fun::result_type> std::operator>(const typename _Dom::value_type&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)
     _DEFINE_EXPR_BINARY_OPERATOR(>, __greater)
     ^
/usr/include/c++/5/bits/valarray_after.h:417:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   mismatched types 'const std::_Expr<_Dom1, typename _Dom1::value_type>' and 'char'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/valarray:587:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:94,
                 from Main.cc:1:
/usr/include/c++/5/bits/valarray_after.h:417:5: note: candidate: template std::_Expr, typename std::__fun::result_type> std::operator>(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)
     _DEFINE_EXPR_BINARY_OPERATOR(>, __greater)
     ^
/usr/include/c++/5/bits/valarray_after.h:417:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/valarray:587:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:94,
                 from Main.cc:1:
/usr/include/c++/5/bits/valarray_after.h:417:5: note: candidate: template std::_Expr, typename std::__fun::result_type> std::operator>(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::_Expr<_Dom2, typename _Dom2::value_type>&)
     _DEFINE_EXPR_BINARY_OPERATOR(>, __greater)
     ^
/usr/include/c++/5/bits/valarray_after.h:417:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/stack:61:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:88,
                 from Main.cc:1:
/usr/include/c++/5/bits/stl_stack.h:276:5: note: candidate: template bool std::operator>(const std::stack<_Tp, _Seq>&, const std::stack<_Tp, _Seq>&)
     operator>(const stack<_Tp, _Seq>& __x, const stack<_Tp, _Seq>& __y)
     ^
/usr/include/c++/5/bits/stl_stack.h:276:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::stack<_Tp, _Seq>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/set:62:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:86,
                 from Main.cc:1:
/usr/include/c++/5/bits/stl_multiset.h:856:5: note: candidate: template bool std::operator>(const std::multiset<_Key, _Compare, _Alloc>&, const std::multiset<_Key, _Compare, _Alloc>&)
     operator>(const multiset<_Key,_Compare,_Alloc>& __x,
     ^
/usr/include/c++/5/bits/stl_multiset.h:856:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::multiset<_Key, _Compare, _Alloc>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/set:61:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:86,
                 from Main.cc:1:
/usr/include/c++/5/bits/stl_set.h:873:5: note: candidate: template bool std::operator>(const std::set<_Key, _Compare, _Alloc>&, const std::set<_Key, _Compare, _Alloc>&)
     operator>(const set<_Key, _Compare, _Alloc>& __x,
     ^
/usr/include/c++/5/bits/stl_set.h:873:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::set<_Key, _Compare, _Alloc>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/queue:64:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:85,
                 from Main.cc:1:
/usr/include/c++/5/bits/stl_queue.h:301:5: note: candidate: template bool std::operator>(const std::queue<_Tp, _Seq>&, const std::queue<_Tp, _Seq>&)
     operator>(const queue<_Tp, _Seq>& __x, const queue<_Tp, _Seq>& __y)
     ^
/usr/include/c++/5/bits/stl_queue.h:301:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::queue<_Tp, _Seq>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/memory:82:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:81,
                 from Main.cc:1:
/usr/include/c++/5/bits/shared_ptr.h:414:5: note: candidate: template bool std::operator>(std::nullptr_t, const std::shared_ptr<_Tp1>&)
     operator>(nullptr_t, const shared_ptr<_Tp>& __a) noexcept
     ^
/usr/include/c++/5/bits/shared_ptr.h:414:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   cannot convert 'main()::{i}' (type 'main()::') to type 'std::nullptr_t'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/memory:82:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:81,
                 from Main.cc:1:
/usr/include/c++/5/bits/shared_ptr.h:409:5: note: candidate: template bool std::operator>(const std::shared_ptr<_Tp1>&, std::nullptr_t)
     operator>(const shared_ptr<_Tp>& __a, nullptr_t) noexcept
     ^
/usr/include/c++/5/bits/shared_ptr.h:409:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::shared_ptr<_Tp1>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/memory:82:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:81,
                 from Main.cc:1:
/usr/include/c++/5/bits/shared_ptr.h:403:5: note: candidate: template bool std::operator>(const std::shared_ptr<_Tp1>&, const std::shared_ptr<_Tp2>&)
     operator>(const shared_ptr<_Tp1>& __a,
     ^
/usr/include/c++/5/bits/shared_ptr.h:403:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::shared_ptr<_Tp1>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/bits/shared_ptr.h:52:0,
                 from /usr/include/c++/5/memory:82,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:81,
                 from Main.cc:1:
/usr/include/c++/5/bits/shared_ptr_base.h:1261:5: note: candidate: template bool std::operator>(std::nullptr_t, const std::__shared_ptr<_Tp, _Lp>&)
     operator>(nullptr_t, const __shared_ptr<_Tp, _Lp>& __a) noexcept
     ^
/usr/include/c++/5/bits/shared_ptr_base.h:1261:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   cannot convert 'main()::{i}' (type 'main()::') to type 'std::nullptr_t'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/bits/shared_ptr.h:52:0,
                 from /usr/include/c++/5/memory:82,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:81,
                 from Main.cc:1:
/usr/include/c++/5/bits/shared_ptr_base.h:1256:5: note: candidate: template bool std::operator>(const std::__shared_ptr<_Tp, _Lp>&, std::nullptr_t)
     operator>(const __shared_ptr<_Tp, _Lp>& __a, nullptr_t) noexcept
     ^
/usr/include/c++/5/bits/shared_ptr_base.h:1256:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::__shared_ptr<_Tp, _Lp>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/bits/shared_ptr.h:52:0,
                 from /usr/include/c++/5/memory:82,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:81,
                 from Main.cc:1:
/usr/include/c++/5/bits/shared_ptr_base.h:1250:5: note: candidate: template bool std::operator>(const std::__shared_ptr<_Tp1, _Lp>&, const std::__shared_ptr<_Tp2, _Lp>&)
     operator>(const __shared_ptr<_Tp1, _Lp>& __a,
     ^
/usr/include/c++/5/bits/shared_ptr_base.h:1250:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::__shared_ptr<_Tp1, _Lp>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/map:62:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:80,
                 from Main.cc:1:
/usr/include/c++/5/bits/stl_multimap.h:1005:5: note: candidate: template bool std::operator>(const std::multimap<_Key, _Tp, _Compare, _Alloc>&, const std::multimap<_Key, _Tp, _Compare, _Alloc>&)
     operator>(const multimap<_Key, _Tp, _Compare, _Alloc>& __x,
     ^
/usr/include/c++/5/bits/stl_multimap.h:1005:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::multimap<_Key, _Tp, _Compare, _Alloc>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/map:61:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:80,
                 from Main.cc:1:
/usr/include/c++/5/bits/stl_map.h:1104:5: note: candidate: template bool std::operator>(const std::map<_Key, _Tp, _Compare, _Alloc>&, const std::map<_Key, _Tp, _Compare, _Alloc>&)
     operator>(const map<_Key, _Tp, _Compare, _Alloc>& __x,
     ^
/usr/include/c++/5/bits/stl_map.h:1104:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::map<_Key, _Tp, _Compare, _Alloc>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/map:60:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:80,
                 from Main.cc:1:
/usr/include/c++/5/bits/stl_tree.h:1300:5: note: candidate: template bool std::operator>(const std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>&, const std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>&)
     operator>(const _Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>& __x,
     ^
/usr/include/c++/5/bits/stl_tree.h:1300:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/list:63:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:78,
                 from Main.cc:1:
/usr/include/c++/5/bits/stl_list.h:1849:5: note: candidate: template bool std::operator>(const std::__cxx11::list<_Tp, _Alloc>&, const std::__cxx11::list<_Tp, _Alloc>&)
     operator>(const list<_Tp, _Alloc>& __x, const list<_Tp, _Alloc>& __y)
     ^
/usr/include/c++/5/bits/stl_list.h:1849:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::__cxx11::list<_Tp, _Alloc>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/bits/locale_conv.h:41:0,
                 from /usr/include/c++/5/locale:43,
                 from /usr/include/c++/5/iomanip:43,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:71,
                 from Main.cc:1:
/usr/include/c++/5/bits/unique_ptr.h:711:5: note: candidate: template bool std::operator>(std::nullptr_t, const std::unique_ptr<_Tp, _Dp>&)
     operator>(nullptr_t, const unique_ptr<_Tp, _Dp>& __x)
     ^
/usr/include/c++/5/bits/unique_ptr.h:711:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   cannot convert 'main()::{i}' (type 'main()::') to type 'std::nullptr_t'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/bits/locale_conv.h:41:0,
                 from /usr/include/c++/5/locale:43,
                 from /usr/include/c++/5/iomanip:43,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:71,
                 from Main.cc:1:
/usr/include/c++/5/bits/unique_ptr.h:705:5: note: candidate: template bool std::operator>(const std::unique_ptr<_Tp, _Dp>&, std::nullptr_t)
     operator>(const unique_ptr<_Tp, _Dp>& __x, nullptr_t)
     ^
/usr/include/c++/5/bits/unique_ptr.h:705:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::unique_ptr<_Tp, _Dp>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/bits/locale_conv.h:41:0,
                 from /usr/include/c++/5/locale:43,
                 from /usr/include/c++/5/iomanip:43,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:71,
                 from Main.cc:1:
/usr/include/c++/5/bits/unique_ptr.h:699:5: note: candidate: template bool std::operator>(const std::unique_ptr<_Tp, _Dp>&, const std::unique_ptr<_Up, _Ep>&)
     operator>(const unique_ptr<_Tp, _Dp>& __x,
     ^
/usr/include/c++/5/bits/unique_ptr.h:699:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::unique_ptr<_Tp, _Dp>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/functional:55:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:70,
                 from Main.cc:1:
/usr/include/c++/5/tuple:947:5: note: candidate: template constexpr bool std::operator>(const std::tuple<_Elements ...>&, const std::tuple<_Elements ...>&)
     operator>(const tuple<_TElements...>& __t,
     ^
/usr/include/c++/5/tuple:947:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::tuple<_Elements ...>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/tuple:39:0,
                 from /usr/include/c++/5/functional:55,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:70,
                 from Main.cc:1:
/usr/include/c++/5/array:258:5: note: candidate: template bool std::operator>(const std::array<_Tp, _Nm>&, const std::array<_Tp, _Nm>&)
     operator>(const array<_Tp, _Nm>& __one, const array<_Tp, _Nm>& __two)
     ^
/usr/include/c++/5/array:258:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::array<_Tp, _Nm>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/deque:64:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:67,
                 from Main.cc:1:
/usr/include/c++/5/bits/stl_deque.h:2253:5: note: candidate: template bool std::operator>(const std::deque<_Tp, _Alloc>&, const std::deque<_Tp, _Alloc>&)
     operator>(const deque<_Tp, _Alloc>& __x,
     ^
/usr/include/c++/5/bits/stl_deque.h:2253:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::deque<_Tp, _Alloc>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/deque:64:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:67,
                 from Main.cc:1:
/usr/include/c++/5/bits/stl_deque.h:313:5: note: candidate: template bool std::operator>(const std::_Deque_iterator<_Tp, _Ref, _Ptr>&, const std::_Deque_iterator<_Tp, _RefR, _PtrR>&)
     operator>(const _Deque_iterator<_Tp, _RefL, _PtrL>& __x,
     ^
/usr/include/c++/5/bits/stl_deque.h:313:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::_Deque_iterator<_Tp, _Ref, _Ptr>'
    if([i]>m){
           ^
In file included from /usr/include/c++/5/deque:64:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:67,
                 from Main.cc:1:
/usr/include/c++/5/bits/stl_deque.h:306:5: note: candidate: template bool std::operator>(const std::_Deque_iterator<_Tp, _Ref, _Ptr>&, const std::_Deque_iterator<_Tp, _Ref, _Ptr>&)
     operator>(const _Deque_iterator<_Tp, _Ref, _Ptr>& __x,
     ^
/usr/include/c++/5/bits/stl_deque.h:306:5: note:   template argument deduction/substitution failed:
Main.cc:53:11: note:   'main()::' is not derived from 'const std::_Deque_iterator<_Tp, _Ref, _Ptr>'
    if([i]>m){
           ^
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 /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:64,
                 from Main.cc:1:
/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:53:11: note:   'main()::' is not derived from 'const std::vector<_Tp, _Alloc>'
    if([i]>m){
           ^
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/istream:38,
                 from /usr/include/c++/5/sstream:38,
                 from /usr/include/c++/5/complex:45,
                 from /usr/include/c++/5/ccomplex:38,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:52,
                 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:53:11: note:   mismatched types 'const _CharT*' and 'main()::'
    if([i]>m){
           ^
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/istream:38,
                 from /usr/include/c++/5/sstream:38,
                 from /usr/include/c++/5/complex:45,
                 from /usr/include/c++/5/ccomplex:38,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:52,
                 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:53:11: note:   'main()::' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>'
    if([i]>m){
           ^
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/istream:38,
                 from /usr/include/c++/5/sstream:38,
                 from /usr/include/c++/5/complex:45,
                 from /usr/include/c++/5/ccomplex:38,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:52,
                 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:53:11: note:   'main()::' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Alloc>'
    if([i]>m){
           ^
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/istream:38,
                 from /usr/include/c++/5/sstream:38,
                 from /usr/include/c++/5/complex:45,
                 from /usr/include/c++/5/ccomplex:38,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:52,
                 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:53:11: note:   'main()::' is not derived from 'const std::move_iterator<_Iterator>'
    if([i]>m){
           ^
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/istream:38,
                 from /usr/include/c++/5/sstream:38,
                 from /usr/include/c++/5/complex:45,
                 from /usr/include/c++/5/ccomplex:38,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:52,
                 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:53:11: note:   'main()::' is not derived from 'const std::move_iterator<_Iterator>'
    if([i]>m){
           ^
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/istream:38,
                 from /usr/include/c++/5/sstream:38,
                 from /usr/include/c++/5/complex:45,
                 from /usr/include/c++/5/ccomplex:38,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:52,
                 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:53:11: note:   'main()::' is not derived from 'const std::reverse_iterator<_Iterator>'
    if([i]>m){
           ^
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/istream:38,
                 from /usr/include/c++/5/sstream:38,
                 from /usr/include/c++/5/complex:45,
                 from /usr/include/c++/5/ccomplex:38,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:52,
                 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:53:11: note:   'main()::' is not derived from 'const std::reverse_iterator<_Iterator>'
    if([i]>m){
           ^
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/istream:38,
                 from /usr/include/c++/5/sstream:38,
                 from /usr/include/c++/5/complex:45,
                 from /usr/include/c++/5/ccomplex:38,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:52,
                 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:53:11: note:   'main()::' is not derived from 'const std::pair<_T1, _T2>'
    if([i]>m){
           ^