oj.uz

답안 #829756

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
829756 2023-08-18T14:48:28 Z caganyanmaz 철인 이종 경기 (APIO18_duathlon) C++14
0 / 100
 1000 ms 1048576 KB 
#include <bits/stdc++.h>
#define int int64_t
#define pb push_back
using namespace std;

constexpr static int MXN = 1e5;
int n, m;
vector<int> g[MXN];
int subtree_size[MXN];

int res;
void dfs(int node, int p)
{
	subtree_size[node] = 1;
	for (int c : g[node])
	{
		if (c == p)
			continue;
		dfs(c, node);
		subtree_size[node] += subtree_size[c];
		res += subtree_size[c] * (n - subtree_size[c] - 1);
	}
	int rem = n - subtree_size[node];
	res += (subtree_size[node] - 1) * rem;
}

int32_t main()
{
	cin >> n >> m;
	for (int i = 0; i < m; i++)
	{
		int a, b;
		cin >> a >> b;
		a--,b--;
		g[a].pb(b);
		g[b].pb(a);
	}
	dfs(0, 0);
	cout << res << "\n";
}

Subtask #1
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 400 ms 1048576 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 400 ms 1048576 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 1090 ms 874460 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Correct 3 ms 2644 KB Output is correct
4 Correct 2 ms 2644 KB Output is correct
5 Correct 2 ms 2644 KB Output is correct
6 Correct 2 ms 2644 KB Output is correct
7 Correct 2 ms 2644 KB Output is correct
8 Correct 2 ms 2664 KB Output is correct
9 Correct 2 ms 2644 KB Output is correct
10 Incorrect 2 ms 2660 KB Output isn't correct
11 Halted 0 ms 0 KB -

Subtask #5
0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 63 ms 7452 KB Output is correct
2 Correct 57 ms 8360 KB Output is correct
3 Correct 83 ms 8364 KB Output is correct
4 Correct 54 ms 8400 KB Output is correct
5 Correct 56 ms 8364 KB Output is correct
6 Correct 57 ms 11172 KB Output is correct
7 Correct 71 ms 10596 KB Output is correct
8 Correct 66 ms 9932 KB Output is correct
9 Correct 82 ms 9376 KB Output is correct
10 Incorrect 78 ms 8284 KB Output isn't correct
11 Halted 0 ms 0 KB -

Subtask #6
0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 2644 KB Output is correct
2 Correct 2 ms 2644 KB Output is correct
3 Runtime error 458 ms 1048576 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 66 ms 7532 KB Output is correct
2 Correct 60 ms 7596 KB Output is correct
3 Runtime error 629 ms 1048576 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 400 ms 1048576 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 400 ms 1048576 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -