Submission #829157

#	Time	Username	Problem	Language	Result	Execution time	Memory
829157		vjudge1	Bitaro’s Party (JOI18_bitaro)	C++17	14 / 100	2072 ms	11876 KiB

bitaro

#ifdef Home
#define _GLIBCXX_DEBUG
#endif // Home

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef long double ld;

const int N = 100100;
const int SQ = 316;

vector < int > adj[N], dp(N), calc[N], use(N);
int True;

main() {
#ifdef Home
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif // Home
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    int n, m, q, u, v;
    for(cin >> n >> m >> q; m --> 0;) {
        cin >> u >> v;
        adj[u].push_back(v);
    }
    for(int T, Y, C; q --> 0;) {
        ++ True;
        for(cin >> T >> Y; Y --> 0;) {
            cin >> C;
            use[C] = True;
        }
        if(false) {
            
        } else {
            for(int i = n; i; dp[i --] = -1);
            for(int i = 1; i <= n; ++ i) {
                dp[i] += use[i] != True || dp[i] != -1;
                for(auto &j : adj[i]) {
                    dp[j] = max(dp[j], dp[i]);
                }
            }
            cout << (dp[T] == -1 ? -1 : dp[T]) << '\n';
        }
    }
}

Compilation message (stderr)

bitaro.cpp:18:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   18 | main() {
      | ^~~~

• Subtask 1: 7 / 7
• Subtask 2: 7 / 7
• Subtask 3: 0 / 86