Language: C++

#include <bits/stdc++.h>
using namespace std;
#define int long long
template<typename T> bool chmax(T& a,T b) { if (a < b) { a = b; return true; } return false; }
template<typename T> inline bool chmin(T& a,T b) { if (a > b) { a = b; return true; } return false; }
const int INF = 1e18;

struct Edge { int from, to, cost; };

signed main() {
    int N, M, P;
    cin >> N >> M >> P;
    bool cycle = false;
    vector<Edge> edges;
    vector<int> dist(N, INF); dist[0] = 0;
    for (int i = 0; i < M; i++) {
        int a, b, c;
        cin >> a >> b >> c;
        a--; b--; c = P - c;
        Edge e; e.from = a; e.to = b, e.cost = c;
        edges.push_back(e);
    }
    
    for (int i = 0; i <= N; i++) {
        for (int j = 0; j < edges.size(); j++) {
            Edge e = edges[j];
            if (dist[e.from] == INF) continue;
            if (chmin(dist[e.to], dist[e.from] + e.cost)) {
                if (i == N && e.to == N-1) cycle = true;
            }
        }
    }
    int now = dist[N-1];
        for (int i = 0; i <= N; i++) {
        for (int j = 0; j < edges.size(); j++) {
            Edge e = edges[j];
            if (dist[e.from] == INF) continue;
            if (chmin(dist[e.to], dist[e.from] + e.cost)) {
                if (i == N && e.to == N-1) cycle = true;
            }
        }
    }
    //for (auto d : dist) cout << d << " "; cout << endl;
    int ans = max(0, -dist[N-1]);
    if (now != dist[N-1]) cout << -1 << endl;
    else cout << ans << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:44:18: error: no matching function for call to 'max(int, __gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type)'
   44 |     int ans = max(0, -dist[N-1]);
      |               ~~~^~~~~~~~~~~~~~~
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:44:18: note:   deduced conflicting types for parameter 'const _Tp' ('int' and '__gnu_cxx::__alloc_traits<std::allocator<long long int>, long long int>::value_type' {aka 'long long int'})
   44 |     int ans = max(0, -dist[N-1]);
      |               ~~~^~~~~~~~~~~~~~~
/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:44:18: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   44 |     int ans = max(0, -dist[N-1]);
      |               ~~~^~~~~~~~~~~~~~~