Language: C++

#include<iostream>
#include<algorithm>
#include<cmath>
#include<cstdio>
#include<set>
#include<cstring>
using namespace std;
typedef long long ll;
int T;
int n,m,r;
long long int mark[10];
long long int num[310][310];
const long long int inf=1e9;
int main() {
 
    //cout<<0x3f3f3f3f<<endl;
    cin>>n>>m>>r;
    for(int i=0;i<=n;i++)
        for(int j=0;j<=n;j++)
        num[i][j]=inf;
    for(int i=0;i<r;i++)
        cin>>mark[i];
    for(int i=0;i<m;i++)
    {
        int a,b,c;
        cin>>a>>b>>c;
        //cin>>a>>b>>c;
        num[a][b]=num[b][a]=min(num[a][b],c);
    }
    for(int k=1;k<=n;k++)
    {
        for(int i=1;i<=n;i++)
            for(int j=1;j<=n;j++)
            num[i][j]=min(num[i][j],num[i][k]+num[k][j]);
    }
    long long int minn=inf*10;
  //  cout<<inf<<endl;
  //  cout<<minn<<endl;
    do
    {
        long long int sum=0;
        for(int i=1;i<r;i++)
        {
            int a=mark[i-1];
            int b=mark[i];
            sum+=num[a][b];
        }
        minn=min(minn,sum);
    }while(next_permutation(mark,mark+r));
    cout<<minn<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:28:32: error: no matching function for call to 'min(long long int&, int&)'
   28 |         num[a][b]=num[b][a]=min(num[a][b],c);
      |                             ~~~^~~~~~~~~~~~~
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:28:32: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   28 |         num[a][b]=num[b][a]=min(num[a][b],c);
      |                             ~~~^~~~~~~~~~~~~
/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: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:28:32: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   28 |         num[a][b]=num[b][a]=min(num[a][b],c);
      |                             ~~~^~~~~~~~~~~~~