Language: C++


#include <iostream>
#include <string>
#include <vector>
#include <cmath>
#include <algorithm>
#include <cstdio>

using namespace std;

int main(){

  int n, C;

  cin >> n >> C;

  int D[C][C];
  //int c[n][n];
    int r;

  int auau;
  for (int i=0; i < C; i++){
    for(int j=0; j < C; j++){
      r = scanf("%d", &D[i][j]);
    }
  }
  int a[3][31] = {};

  for (int i=0; i < n; i++){
    for(int j=0; j < n; j++){
      r = scanf("%d", &auau);
      a[(i+j)%3][auau-1]++;
    }
  }
  // for(int i = 0; i < 3; i++){
  //   for (int j = 0; j < C; j++){
  //     cout << a[i][j];
  //   }
  //   cout << endl;
  // }
  int res = 0;
  long long min_res = 999999999;
  for(int i=0; i < C; i++){
    for (int j = 0; j< C; j++){
      for (int k = 0; k < C; k++){
        if((i != j) && (j != k) && (i != k)){
          res = 0;
          for (int l = 0; l < C; l++){
            res += (a[0][l] * D[l][i] + a[1][l] * D[l][j] + a[2][l] * D[l][k]);
          }
          //cout << res << endl;
          min_res = min(min_res, res);
        }
      }
    }
  }

  cout << min_res << endl;


  return 0;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:52:24: error: no matching function for call to 'min(long long int&, int&)'
   52 |           min_res = min(min_res, res);
      |                     ~~~^~~~~~~~~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:2:
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:52:24: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   52 |           min_res = min(min_res, res);
      |                     ~~~^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61,
                 from a.cc:6:
/usr/include/c++/14/bits/stl_algo.h:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   template argument deduction/substitution failed:
a.cc:52:24: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   52 |           min_res = min(min_res, res);
      |                     ~~~^~~~~~~~~~~~~~