제출 #567984

#제출 시각아이디문제언어결과실행 시간메모리
567984LittleCube조이터에서 친구를 만드는건 재밌어 (JOI20_joitter2)C++14
0 / 100
1 ms340 KiB
#include <bits/stdc++.h> #define ll long long #define pii pair<int, int> #define pll pair<ll, ll> #define F first #define S second using namespace std; int N, M, adj[2005][2005]; signed main() { ios::sync_with_stdio(0); cin.tie(0), cout.tie(0); cin >> N >> M; for(int i = 1; i <= M; i++) { int A, B, ans = 0; cin >> A >> B; adj[A][B] = 1; for(int x = 1; x <= N; x++) for(int y = 1; y <= N; y++) if(adj[x][y]) for(int z = 1; z <= N; z++) if(adj[y][z] && adj[z][y] && x != z) adj[x][z] = 1; for(int x = 1; x <= N; x++) for(int y = 1; y <= N; y++) ans += adj[x][y]; cout << ans << '\n'; } }
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