Language: C++

#include<bits/stdc++.h>
using namespace std;
using ll=long long int;
int main()
{
    
        ll n,k;
        cin>>n>>k;
        vector<ll> a(n+1);
        vector<ll> cost(n+1);
        for(ll i=1;i<=n;i++)
        cin>>a[i];
        for(ll i=1;i<=n;i++)
        cin>>cost[i];
        ll mini=-1e16;
        for(ll i=1;i<=n;i++)
        {
            vector<ll> dp;
            vector<ll> visited(n+1,0);
            ll p=a[i];
            dp.push_back(cost[p]);
            visited[p]=1;
            p=a[p];
            //visited[i]=1;
            while(visited[p]==0)
            {
                visited[p]=1;
                dp.push_back(dp[dp.size()-1]+cost[p]);
                p=a[p];
            }
            ll j=dp.size();
            ll ans=0;
            ll uyt=k;
            int flag=0;
            if(k>j)
            {
                if(dp[j-1]>0)
                ans+=(k/j)*dp[j-1];
                k=k%j;
                flag=1;
            }
            // for(ll i=0;i<dp.size();i++)
            // cout<<dp[i]<<" ";
            // cout<<endl;
            ll sum=-1e16;


            if(k==0)
            {
                if(dp[j-1]==0)
                {
                    mini=max(mini,0);
                    k=uyt;
                    continue;
                }
                if(ans==0)
                {
                    for(ll re=0;re<j;re++)
                    sum=max(sum,dp[re]);   
                    ans=sum;
                    mini=max(mini,ans);
                    k=uyt;
                    continue;
                }
                
            }
            for(ll re=0;re<k;re++)
            sum=max(sum,dp[re]);
            ans+=sum;
            //cout<<ans<<endl;
            mini=max(mini,ans);
            k=uyt;


        }
        cout<<mini<<endl;
    
}

Compiler output:
a.cc: In function 'int main()':
a.cc:52:29: error: no matching function for call to 'max(ll&, int)'
   52 |                     mini=max(mini,0);
      |                          ~~~^~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:52:29: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   52 |                     mini=max(mini,0);
      |                          ~~~^~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:52:29: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   52 |                     mini=max(mini,0);
      |                          ~~~^~~~~~~~