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답안 #292836

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
292836 2020-09-07T14:06:27 Z 임성재(#5807) 서류 전달 (ROI16_sending) C++17
29 / 100
 5000 ms 524292 KB 
#include<bits/stdc++.h>
using namespace std;

#define fast ios::sync_with_stdio(false); cin.tie(0);
#define fi first
#define se second
#define em emplace 
#define eb emplace_back
#define mp make_pair
#define all(v) (v).begin(), (v).end()

typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
const int inf = 1e9;
const ll INF = 1e18;

int n, q;
int p[200010];
int d[200010];
map<int,int> m[50010];
vector<int> g[200010];

int main() {
	fast;

	cin >> n >> q;

	for(int i=2; i<=n; i++) {
		cin >> p[i];
		d[i] = d[p[i]] + 1;
	}

	for(int i=1; i<=q; i++) {
		int u, v;
		cin >> u >> v;

		while(u != v) {
			if(d[u] > d[v]) swap(u, v);
			g[v].eb(i);
			v = p[v];
		}
	}

	for(int i=2; i<=n; i++) {
		sort(all(g[i]));

		for(int j=0; j<g[i].size(); j++) {
			for(int k=j+1; k<g[i].size(); k++) {
				m[g[i][j]][g[i][k]]++;
			}
		}
	}

	int ans = 0;
	pii mxi = mp(1, 2);

	for(int i=1; i<=q; i++) {
		for(auto j : m[i]) {
			if(j.se > ans) {
				ans = j.se;
				mxi = mp(i, j.fi);
			}
		}
	}
	
	cout << ans << "\n";
	cout << mxi.fi << " " << mxi.se;
}

Compilation message

sending.cpp: In function 'int main()':
sending.cpp:48:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   48 |   for(int j=0; j<g[i].size(); j++) {
      |                ~^~~~~~~~~~~~
sending.cpp:49:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |    for(int k=j+1; k<g[i].size(); k++) {
      |                   ~^~~~~~~~~~~~

Subtask #1
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 7424 KB Output is correct
2 Correct 5 ms 7424 KB Output is correct
3 Correct 5 ms 7424 KB Output is correct
4 Correct 5 ms 7424 KB Output is correct
5 Correct 5 ms 7424 KB Output is correct
6 Correct 6 ms 7552 KB Output is correct
7 Correct 6 ms 7552 KB Output is correct
8 Correct 8 ms 7552 KB Output is correct
9 Correct 8 ms 7552 KB Output is correct
10 Correct 7 ms 7552 KB Output is correct
11 Correct 5 ms 7424 KB Output is correct
12 Correct 8 ms 7552 KB Output is correct
13 Correct 6 ms 7424 KB Output is correct
14 Correct 6 ms 7552 KB Output is correct
15 Correct 13 ms 7680 KB Output is correct
16 Correct 6 ms 7424 KB Output is correct
17 Correct 6 ms 7424 KB Output is correct
18 Correct 8 ms 7552 KB Output is correct
19 Correct 8 ms 7680 KB Output is correct

Subtask #2
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 7424 KB Output is correct
2 Correct 5 ms 7424 KB Output is correct
3 Correct 5 ms 7424 KB Output is correct
4 Correct 5 ms 7424 KB Output is correct
5 Correct 5 ms 7424 KB Output is correct
6 Correct 6 ms 7552 KB Output is correct
7 Correct 6 ms 7552 KB Output is correct
8 Correct 8 ms 7552 KB Output is correct
9 Correct 8 ms 7552 KB Output is correct
10 Correct 7 ms 7552 KB Output is correct
11 Correct 5 ms 7424 KB Output is correct
12 Correct 8 ms 7552 KB Output is correct
13 Correct 6 ms 7424 KB Output is correct
14 Correct 6 ms 7552 KB Output is correct
15 Correct 13 ms 7680 KB Output is correct
16 Correct 6 ms 7424 KB Output is correct
17 Correct 6 ms 7424 KB Output is correct
18 Correct 8 ms 7552 KB Output is correct
19 Correct 8 ms 7680 KB Output is correct
20 Correct 92 ms 20772 KB Output is correct
21 Correct 182 ms 22648 KB Output is correct
22 Execution timed out 5054 ms 22324 KB Time limit exceeded
23 Halted 0 ms 0 KB -

Subtask #3
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 7424 KB Output is correct
2 Correct 5 ms 7424 KB Output is correct
3 Correct 5 ms 7424 KB Output is correct
4 Correct 5 ms 7424 KB Output is correct
5 Correct 5 ms 7424 KB Output is correct
6 Correct 6 ms 7552 KB Output is correct
7 Correct 6 ms 7552 KB Output is correct
8 Correct 8 ms 7552 KB Output is correct
9 Correct 8 ms 7552 KB Output is correct
10 Correct 7 ms 7552 KB Output is correct
11 Correct 5 ms 7424 KB Output is correct
12 Correct 8 ms 7552 KB Output is correct
13 Correct 6 ms 7424 KB Output is correct
14 Correct 6 ms 7552 KB Output is correct
15 Correct 13 ms 7680 KB Output is correct
16 Correct 6 ms 7424 KB Output is correct
17 Correct 6 ms 7424 KB Output is correct
18 Correct 8 ms 7552 KB Output is correct
19 Correct 8 ms 7680 KB Output is correct
20 Correct 92 ms 20772 KB Output is correct
21 Correct 182 ms 22648 KB Output is correct
22 Execution timed out 5054 ms 22324 KB Time limit exceeded
23 Halted 0 ms 0 KB -

Subtask #4
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 7424 KB Output is correct
2 Correct 5 ms 7424 KB Output is correct
3 Correct 5 ms 7424 KB Output is correct
4 Correct 5 ms 7424 KB Output is correct
5 Correct 5 ms 7424 KB Output is correct
6 Correct 6 ms 7552 KB Output is correct
7 Correct 6 ms 7552 KB Output is correct
8 Correct 8 ms 7552 KB Output is correct
9 Correct 8 ms 7552 KB Output is correct
10 Correct 7 ms 7552 KB Output is correct
11 Correct 5 ms 7424 KB Output is correct
12 Correct 8 ms 7552 KB Output is correct
13 Correct 6 ms 7424 KB Output is correct
14 Correct 6 ms 7552 KB Output is correct
15 Correct 13 ms 7680 KB Output is correct
16 Correct 6 ms 7424 KB Output is correct
17 Correct 6 ms 7424 KB Output is correct
18 Correct 8 ms 7552 KB Output is correct
19 Correct 8 ms 7680 KB Output is correct
20 Correct 92 ms 20772 KB Output is correct
21 Correct 182 ms 22648 KB Output is correct
22 Execution timed out 5054 ms 22324 KB Time limit exceeded
23 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1645 ms 524292 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #6
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 1648 ms 524292 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #7
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 7424 KB Output is correct
2 Correct 5 ms 7424 KB Output is correct
3 Correct 5 ms 7424 KB Output is correct
4 Correct 5 ms 7424 KB Output is correct
5 Correct 5 ms 7424 KB Output is correct
6 Correct 6 ms 7552 KB Output is correct
7 Correct 6 ms 7552 KB Output is correct
8 Correct 8 ms 7552 KB Output is correct
9 Correct 8 ms 7552 KB Output is correct
10 Correct 7 ms 7552 KB Output is correct
11 Correct 5 ms 7424 KB Output is correct
12 Correct 8 ms 7552 KB Output is correct
13 Correct 6 ms 7424 KB Output is correct
14 Correct 6 ms 7552 KB Output is correct
15 Correct 13 ms 7680 KB Output is correct
16 Correct 6 ms 7424 KB Output is correct
17 Correct 6 ms 7424 KB Output is correct
18 Correct 8 ms 7552 KB Output is correct
19 Correct 8 ms 7680 KB Output is correct
20 Correct 92 ms 20772 KB Output is correct
21 Correct 182 ms 22648 KB Output is correct
22 Execution timed out 5054 ms 22324 KB Time limit exceeded
23 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 7424 KB Output is correct
2 Correct 5 ms 7424 KB Output is correct
3 Correct 5 ms 7424 KB Output is correct
4 Correct 5 ms 7424 KB Output is correct
5 Correct 5 ms 7424 KB Output is correct
6 Correct 6 ms 7552 KB Output is correct
7 Correct 6 ms 7552 KB Output is correct
8 Correct 8 ms 7552 KB Output is correct
9 Correct 8 ms 7552 KB Output is correct
10 Correct 7 ms 7552 KB Output is correct
11 Correct 5 ms 7424 KB Output is correct
12 Correct 8 ms 7552 KB Output is correct
13 Correct 6 ms 7424 KB Output is correct
14 Correct 6 ms 7552 KB Output is correct
15 Correct 13 ms 7680 KB Output is correct
16 Correct 6 ms 7424 KB Output is correct
17 Correct 6 ms 7424 KB Output is correct
18 Correct 8 ms 7552 KB Output is correct
19 Correct 8 ms 7680 KB Output is correct
20 Correct 92 ms 20772 KB Output is correct
21 Correct 182 ms 22648 KB Output is correct
22 Execution timed out 5054 ms 22324 KB Time limit exceeded
23 Halted 0 ms 0 KB -