Language: C++

#include <iostream>
#include <bits/stdc++.h>
#include <algorithm>

using namespace std;



int n,m,r;
long long int dist[210][210]; 
int ra[9];
int a[40010],b[40010],c[40010]; 
long long int res; 
bool used[9];


void dfs(int c,int las,int distan) { 
  if(c==r+1) { 
    if(res>distan)res=distan;
    return; 
  } 
  for(int i=0;i<r;i++)
    if(!used[i]) { 
      used[i]=true; 
      if(las==-1) dfs(c+1,i,0); 
      else dfs(c+1,i,distan+dist[ra[las]][ra[i]]); 
      used[i]=false; 
     
    }
}

int main(){

  cin >> n >> m >> r;
  
  for(int i=0;i<r;i++)
    cin >> ra[i];
  
  for(int i=0;i<r;i++){
    ra[i]--;
  }
    
for(int i=0;i<m;i++){
    cin >> a[i] >> b[i] >> c[i];
    a[i]--,b[i]--;
     
  }
  
  for(int i=0;i<n;i++){
    for(int j=0;j<n;j++){
      if(i==j){
      dist[i][j] = 0;
      }
      else{
        dist[i][j] = 1e18;
      }
    }
  }
  
  
  for(int i=0;i<m;i++){
    
      dist[a[i]][b[i]] = min(dist[a[i]][b[i]],c[i]);
    dist[b[i]][a[i]] = min(dist[b[i]][a[i]],c[i]);
    
  }
  
 
  for (int k = 0; k < n; k++){       
    for (int i = 0; i < n; i++) {    
      for (int j = 0; j < n; j++) {  
        dist[i][j] = min(dist[i][j], dist[i][k] + dist[k][j]);
      }
    }
  }
 
  res = 1e18;
  
  dfs(1,-1,0);
  
  cout << res << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:63:29: error: no matching function for call to 'min(long long int&, int&)'
   63 |       dist[a[i]][b[i]] = min(dist[a[i]][b[i]],c[i]);
      |                          ~~~^~~~~~~~~~~~~~~~~~~~~~~
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:1:
/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:63:29: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   63 |       dist[a[i]][b[i]] = min(dist[a[i]][b[i]],c[i]);
      |                          ~~~^~~~~~~~~~~~~~~~~~~~~~~
/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 /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:2:
/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:63:29: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   63 |       dist[a[i]][b[i]] = min(dist[a[i]][b[i]],c[i]);
      |                          ~~~^~~~~~~~~~~~~~~~~~~~~~~
a.cc:64:27: error: no matching function for call to 'min(long long int&, int&)'
   64 |     dist[b[i]][a[i]] = min(dist[b[i]][a[i]],c[i]);
      |                        ~~~^~~~~~~~~~~~~~~~~~~~~~~
/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:64:27: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   64 |     dist[b[i]][a[i]] = min(dist[b[i]][a[i]],c[i]);
      |                        ~~~^~~~~~~~~~~~~~~~~~~~~~~
/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
/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:64:27: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   64 |     dist[b[i]][a[i]] = min(dist[b[i]][a[i]],c[i]);
      |                        ~~~^~~~~~~~~~~~~~~~~~~~~~~