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답안 #405075

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
405075 2021-05-15T16:42:31 Z BERNARB01 철인 이종 경기 (APIO18_duathlon) C++17
0 / 100
 1000 ms 1048580 KB 
#include <bits/stdc++.h>

using namespace std;

int main() {
	ios::sync_with_stdio(false);
	cin.tie(0);
	int n, m;
	cin >> n >> m;
	vector<vector<int>> g(n);
	for (int i = 0; i < m; i++) {
		int u, v;
		cin >> u >> v;
		--u; --v;
		g[u].push_back(v);
		g[v].push_back(u);
	}
	vector<long long> sbt(n, 0);
	long long ans = 0;
	function<void(int, int)> dfs0 = [&](int u, int p) {
		sbt[u] = 1;
		for (int v : g[u]) {
			if (v != p) {
				dfs0(v, u);
				sbt[u] += sbt[v];
			}
		}
		long long sum = n - 1;
		long long sbtp = n - sbt[u];
		ans += sbtp * 1LL * (sum - sbtp);
		for (int v : g[u]) {
			if (v != p) {
				ans += sbt[v] * 1LL * (sum - sbt[v]);
			}
		}
	};
	dfs0(0, -1);
	cout << ans << '\n';
	return 0;
}

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 573 ms 1048580 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #2
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 573 ms 1048580 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #3
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1130 ms 667204 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Incorrect 1 ms 332 KB Output isn't correct
11 Halted 0 ms 0 KB -

Subtask #5
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 59 ms 6596 KB Output is correct
2 Correct 52 ms 6612 KB Output is correct
3 Correct 51 ms 6620 KB Output is correct
4 Correct 50 ms 6568 KB Output is correct
5 Correct 52 ms 6596 KB Output is correct
6 Correct 61 ms 12484 KB Output is correct
7 Correct 63 ms 10416 KB Output is correct
8 Correct 57 ms 9540 KB Output is correct
9 Correct 54 ms 8556 KB Output is correct
10 Incorrect 45 ms 6652 KB Output isn't correct
11 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Runtime error 740 ms 1048580 KB Execution killed with signal 9
4 Halted 0 ms 0 KB -

Subtask #7
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 50 ms 6636 KB Output is correct
2 Correct 51 ms 6576 KB Output is correct
3 Runtime error 929 ms 1048580 KB Execution killed with signal 9
4 Halted 0 ms 0 KB -

Subtask #8
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 573 ms 1048580 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 573 ms 1048580 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -