Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
129188 陈奕涵 对角线之和 C++ Compile Error 0 MS 0 KB 475 2025-08-22 15:15:26

Tests(0/0):

Code:

#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int n,a[11][11]={},s; cin>>n; for(int i=0;i<n;i++){ for(int j=0;j<m;j++){ cin>>a[i][j] s+=a[i][i]; s+=a[i][n-i-1] if(n%2==1){ s-=a[n/2][n/2]; } } } cout>>s<<endl; return 0; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:11:17: error: 'm' was not declared in this scope
   for(int j=0;j>' (operand types are 'std::ostream {aka std::basic_ostream}' and 'int')
  cout>>s<>(int, int) 
Main.cc:20:6: note:   no known conversion for argument 1 from 'std::ostream {aka std::basic_ostream}' to 'int'
In file included from /usr/include/c++/5/string:53:0,
                 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.tcc:1441:5: note: candidate: template std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, std::__cxx11::basic_string<_CharT, _Traits, _Alloc>&)
     operator>>(basic_istream<_CharT, _Traits>& __in,
     ^
/usr/include/c++/5/bits/basic_string.tcc:1441:5: note:   template argument deduction/substitution failed:
Main.cc:20:8: note:   'std::ostream {aka std::basic_ostream}' is not derived from 'std::basic_istream<_CharT, _Traits>'
  cout>>s< std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT2*)
     operator>>(basic_istream<_CharT, _Traits>& __in, _CharT* __s)
     ^
/usr/include/c++/5/bits/istream.tcc:955:5: note:   template argument deduction/substitution failed:
Main.cc:20:8: note:   'std::ostream {aka std::basic_ostream}' is not derived from 'std::basic_istream<_CharT, _Traits>'
  cout>>s< std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&, _CharT&)
     operator>>(basic_istream<_CharT, _Traits>& __in, _CharT& __c)
     ^
/usr/include/c++/5/bits/istream.tcc:923:5: note:   template argument deduction/substitution failed:
Main.cc:20:8: note:   'std::ostream {aka std::basic_ostream}' is not derived from 'std::basic_istream<_CharT, _Traits>'
  cout>>s< std::basic_istream& std::operator>>(std::basic_istream&, unsigned char&)
     operator>>(basic_istream& __in, unsigned char& __c)
     ^
/usr/include/c++/5/istream:756:5: note:   template argument deduction/substitution failed:
Main.cc:20:8: note:   'std::ostream {aka std::basic_ostream}' is not derived from 'std::basic_istream'
  cout>>s< std::basic_istream& std::operator>>(std::basic_istream&, signed char&)
     operator>>(basic_istream& __in, signed char& __c)
     ^
/usr/include/c++/5/istream:761:5: note:   template argument deduction/substitution failed:
Main.cc:20:8: note:   'std::ostream {aka std::basic_ostream}' is not derived from 'std::basic_istream'
  cout>>s< std::basic_istream& std::operator>>(std::basic_istream&, unsigned char*)
     operator>>(basic_istream& __in, unsigned char* __s)
     ^
/usr/include/c++/5/istream:803:5: note:   template argument deduction/substitution failed:
Main.cc:20:8: note:   'std::ostream {aka std::basic_ostream}' is not derived from 'std::basic_istream'
  cout>>s< std::basic_istream& std::operator>>(std::basic_istream&, signed char*)
     operator>>(basic_istream& __in, signed char* __s)
     ^
/usr/include/c++/5/istream:808:5: note:   template argument deduction/substitution failed:
Main.cc:20:8: note:   'std::ostream {aka std::basic_ostream}' is not derived from 'std::basic_istream'
  cout>>s< std::basic_istream<_CharT, _Traits>& std::operator>>(std::basic_istream<_CharT, _Traits>&&, _Tp&)
     operator>>(basic_istream<_CharT, _Traits>&& __is, _Tp& __x)
     ^
/usr/include/c++/5/istream:924:5: note:   template argument deduction/substitution failed:
Main.cc:20:8: note:   'std::ostream {aka std::basic_ostream}' is not derived from 'std::basic_istream<_CharT, _Traits>'
  cout>>s<