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답안 #292841

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
292841 2020-09-07T14:09:45 Z 임성재(#5807) 서류 전달 (ROI16_sending) C++17
29 / 100
 650 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];
vector<int> g[200010];
vector<pii> v;

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++) {
				v.eb(g[i][j], g[i][k]);
			}
		}
	}

	sort(all(v));

	int ans = 0;
	pii mxi = mp(1, 2);
	
	for(int i=0; i<v.size(); ) {
		int j = i;
		while(j < v.size() && v[i] == v[j]) j++;

		if(j - i > ans) {
			ans = j - i;
			mxi = v[i];
		}

		i = j;
	}
	
	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++) {
      |                   ~^~~~~~~~~~~~
sending.cpp:60:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   60 |  for(int i=0; i<v.size(); ) {
      |               ~^~~~~~~~~
sending.cpp:62:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   62 |   while(j < v.size() && v[i] == v[j]) j++;
      |         ~~^~~~~~~~~~

Subtask #1
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 3 ms 4992 KB Output is correct
3 Correct 3 ms 4992 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 3 ms 4992 KB Output is correct
6 Correct 5 ms 5120 KB Output is correct
7 Correct 5 ms 5248 KB Output is correct
8 Correct 9 ms 6272 KB Output is correct
9 Correct 10 ms 6272 KB Output is correct
10 Correct 7 ms 5764 KB Output is correct
11 Correct 4 ms 4992 KB Output is correct
12 Correct 9 ms 6272 KB Output is correct
13 Correct 4 ms 5120 KB Output is correct
14 Correct 5 ms 5120 KB Output is correct
15 Correct 30 ms 9328 KB Output is correct
16 Correct 6 ms 5504 KB Output is correct
17 Correct 8 ms 5764 KB Output is correct
18 Correct 8 ms 5764 KB Output is correct
19 Correct 6 ms 5760 KB Output is correct

Subtask #2
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 3 ms 4992 KB Output is correct
3 Correct 3 ms 4992 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 3 ms 4992 KB Output is correct
6 Correct 5 ms 5120 KB Output is correct
7 Correct 5 ms 5248 KB Output is correct
8 Correct 9 ms 6272 KB Output is correct
9 Correct 10 ms 6272 KB Output is correct
10 Correct 7 ms 5764 KB Output is correct
11 Correct 4 ms 4992 KB Output is correct
12 Correct 9 ms 6272 KB Output is correct
13 Correct 4 ms 5120 KB Output is correct
14 Correct 5 ms 5120 KB Output is correct
15 Correct 30 ms 9328 KB Output is correct
16 Correct 6 ms 5504 KB Output is correct
17 Correct 8 ms 5764 KB Output is correct
18 Correct 8 ms 5764 KB Output is correct
19 Correct 6 ms 5760 KB Output is correct
20 Correct 69 ms 13552 KB Output is correct
21 Correct 163 ms 21856 KB Output is correct
22 Runtime error 608 ms 524292 KB Execution killed with signal 9
23 Halted 0 ms 0 KB -

Subtask #3
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 3 ms 4992 KB Output is correct
3 Correct 3 ms 4992 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 3 ms 4992 KB Output is correct
6 Correct 5 ms 5120 KB Output is correct
7 Correct 5 ms 5248 KB Output is correct
8 Correct 9 ms 6272 KB Output is correct
9 Correct 10 ms 6272 KB Output is correct
10 Correct 7 ms 5764 KB Output is correct
11 Correct 4 ms 4992 KB Output is correct
12 Correct 9 ms 6272 KB Output is correct
13 Correct 4 ms 5120 KB Output is correct
14 Correct 5 ms 5120 KB Output is correct
15 Correct 30 ms 9328 KB Output is correct
16 Correct 6 ms 5504 KB Output is correct
17 Correct 8 ms 5764 KB Output is correct
18 Correct 8 ms 5764 KB Output is correct
19 Correct 6 ms 5760 KB Output is correct
20 Correct 69 ms 13552 KB Output is correct
21 Correct 163 ms 21856 KB Output is correct
22 Runtime error 608 ms 524292 KB Execution killed with signal 9
23 Halted 0 ms 0 KB -

Subtask #4
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 3 ms 4992 KB Output is correct
3 Correct 3 ms 4992 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 3 ms 4992 KB Output is correct
6 Correct 5 ms 5120 KB Output is correct
7 Correct 5 ms 5248 KB Output is correct
8 Correct 9 ms 6272 KB Output is correct
9 Correct 10 ms 6272 KB Output is correct
10 Correct 7 ms 5764 KB Output is correct
11 Correct 4 ms 4992 KB Output is correct
12 Correct 9 ms 6272 KB Output is correct
13 Correct 4 ms 5120 KB Output is correct
14 Correct 5 ms 5120 KB Output is correct
15 Correct 30 ms 9328 KB Output is correct
16 Correct 6 ms 5504 KB Output is correct
17 Correct 8 ms 5764 KB Output is correct
18 Correct 8 ms 5764 KB Output is correct
19 Correct 6 ms 5760 KB Output is correct
20 Correct 69 ms 13552 KB Output is correct
21 Correct 163 ms 21856 KB Output is correct
22 Runtime error 608 ms 524292 KB Execution killed with signal 9
23 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Runtime error 650 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 629 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 4 ms 4992 KB Output is correct
2 Correct 3 ms 4992 KB Output is correct
3 Correct 3 ms 4992 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 3 ms 4992 KB Output is correct
6 Correct 5 ms 5120 KB Output is correct
7 Correct 5 ms 5248 KB Output is correct
8 Correct 9 ms 6272 KB Output is correct
9 Correct 10 ms 6272 KB Output is correct
10 Correct 7 ms 5764 KB Output is correct
11 Correct 4 ms 4992 KB Output is correct
12 Correct 9 ms 6272 KB Output is correct
13 Correct 4 ms 5120 KB Output is correct
14 Correct 5 ms 5120 KB Output is correct
15 Correct 30 ms 9328 KB Output is correct
16 Correct 6 ms 5504 KB Output is correct
17 Correct 8 ms 5764 KB Output is correct
18 Correct 8 ms 5764 KB Output is correct
19 Correct 6 ms 5760 KB Output is correct
20 Correct 69 ms 13552 KB Output is correct
21 Correct 163 ms 21856 KB Output is correct
22 Runtime error 608 ms 524292 KB Execution killed with signal 9
23 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 4992 KB Output is correct
2 Correct 3 ms 4992 KB Output is correct
3 Correct 3 ms 4992 KB Output is correct
4 Correct 4 ms 4992 KB Output is correct
5 Correct 3 ms 4992 KB Output is correct
6 Correct 5 ms 5120 KB Output is correct
7 Correct 5 ms 5248 KB Output is correct
8 Correct 9 ms 6272 KB Output is correct
9 Correct 10 ms 6272 KB Output is correct
10 Correct 7 ms 5764 KB Output is correct
11 Correct 4 ms 4992 KB Output is correct
12 Correct 9 ms 6272 KB Output is correct
13 Correct 4 ms 5120 KB Output is correct
14 Correct 5 ms 5120 KB Output is correct
15 Correct 30 ms 9328 KB Output is correct
16 Correct 6 ms 5504 KB Output is correct
17 Correct 8 ms 5764 KB Output is correct
18 Correct 8 ms 5764 KB Output is correct
19 Correct 6 ms 5760 KB Output is correct
20 Correct 69 ms 13552 KB Output is correct
21 Correct 163 ms 21856 KB Output is correct
22 Runtime error 608 ms 524292 KB Execution killed with signal 9
23 Halted 0 ms 0 KB -