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Submission #293002

# Submission time Handle Problem Language Result Execution time Memory
293002 2020-09-07T15:30:40 Z 임성재(#5807) ROI16_sending (ROI16_sending) C++17
29 / 100
 5000 ms 524288 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 unsigned int ui;
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[100010];
int d[100010];
vector<int> g[100010];
vector<ui> 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] + (ui) q * g[i][k]);
			}
		}
	}

	sort(all(v));

	int ans = 0;
	ui mxi = 1 + 2 * q;
	
	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-1) % q + 1 << " " << (mxi-1) / q;
}

Compilation message

sending.cpp: In function 'int main()':
sending.cpp:49:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   49 |   for(int j=0; j<g[i].size(); j++) {
      |                ~^~~~~~~~~~~~
sending.cpp:50:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   50 |    for(int k=j+1; k<g[i].size(); k++) {
      |                   ~^~~~~~~~~~~~
sending.cpp:61:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<unsigned int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   61 |  for(int i=0; i<v.size(); ) {
      |               ~^~~~~~~~~
sending.cpp:63:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<unsigned int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |   while(j < v.size() && v[i] == v[j]) j++;
      |         ~~^~~~~~~~~~

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2816 KB Output is correct
2 Correct 2 ms 2688 KB Output is correct
3 Correct 2 ms 2688 KB Output is correct
4 Correct 2 ms 2688 KB Output is correct
5 Correct 2 ms 2688 KB Output is correct
6 Correct 3 ms 2816 KB Output is correct
7 Correct 3 ms 2816 KB Output is correct
8 Correct 8 ms 3332 KB Output is correct
9 Correct 8 ms 3332 KB Output is correct
10 Correct 5 ms 3072 KB Output is correct
11 Correct 2 ms 2688 KB Output is correct
12 Correct 7 ms 3332 KB Output is correct
13 Correct 2 ms 2688 KB Output is correct
14 Correct 3 ms 2688 KB Output is correct
15 Correct 27 ms 4980 KB Output is correct
16 Correct 4 ms 3072 KB Output is correct
17 Correct 4 ms 3072 KB Output is correct
18 Correct 6 ms 3076 KB Output is correct
19 Correct 4 ms 3072 KB Output is correct

Subtask #2
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2816 KB Output is correct
2 Correct 2 ms 2688 KB Output is correct
3 Correct 2 ms 2688 KB Output is correct
4 Correct 2 ms 2688 KB Output is correct
5 Correct 2 ms 2688 KB Output is correct
6 Correct 3 ms 2816 KB Output is correct
7 Correct 3 ms 2816 KB Output is correct
8 Correct 8 ms 3332 KB Output is correct
9 Correct 8 ms 3332 KB Output is correct
10 Correct 5 ms 3072 KB Output is correct
11 Correct 2 ms 2688 KB Output is correct
12 Correct 7 ms 3332 KB Output is correct
13 Correct 2 ms 2688 KB Output is correct
14 Correct 3 ms 2688 KB Output is correct
15 Correct 27 ms 4980 KB Output is correct
16 Correct 4 ms 3072 KB Output is correct
17 Correct 4 ms 3072 KB Output is correct
18 Correct 6 ms 3076 KB Output is correct
19 Correct 4 ms 3072 KB Output is correct
20 Correct 76 ms 7156 KB Output is correct
21 Correct 173 ms 11244 KB Output is correct
22 Runtime error 672 ms 524288 KB Execution killed with signal 9
23 Halted 0 ms 0 KB -

Subtask #3
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2816 KB Output is correct
2 Correct 2 ms 2688 KB Output is correct
3 Correct 2 ms 2688 KB Output is correct
4 Correct 2 ms 2688 KB Output is correct
5 Correct 2 ms 2688 KB Output is correct
6 Correct 3 ms 2816 KB Output is correct
7 Correct 3 ms 2816 KB Output is correct
8 Correct 8 ms 3332 KB Output is correct
9 Correct 8 ms 3332 KB Output is correct
10 Correct 5 ms 3072 KB Output is correct
11 Correct 2 ms 2688 KB Output is correct
12 Correct 7 ms 3332 KB Output is correct
13 Correct 2 ms 2688 KB Output is correct
14 Correct 3 ms 2688 KB Output is correct
15 Correct 27 ms 4980 KB Output is correct
16 Correct 4 ms 3072 KB Output is correct
17 Correct 4 ms 3072 KB Output is correct
18 Correct 6 ms 3076 KB Output is correct
19 Correct 4 ms 3072 KB Output is correct
20 Correct 76 ms 7156 KB Output is correct
21 Correct 173 ms 11244 KB Output is correct
22 Runtime error 672 ms 524288 KB Execution killed with signal 9
23 Halted 0 ms 0 KB -

Subtask #4
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2816 KB Output is correct
2 Correct 2 ms 2688 KB Output is correct
3 Correct 2 ms 2688 KB Output is correct
4 Correct 2 ms 2688 KB Output is correct
5 Correct 2 ms 2688 KB Output is correct
6 Correct 3 ms 2816 KB Output is correct
7 Correct 3 ms 2816 KB Output is correct
8 Correct 8 ms 3332 KB Output is correct
9 Correct 8 ms 3332 KB Output is correct
10 Correct 5 ms 3072 KB Output is correct
11 Correct 2 ms 2688 KB Output is correct
12 Correct 7 ms 3332 KB Output is correct
13 Correct 2 ms 2688 KB Output is correct
14 Correct 3 ms 2688 KB Output is correct
15 Correct 27 ms 4980 KB Output is correct
16 Correct 4 ms 3072 KB Output is correct
17 Correct 4 ms 3072 KB Output is correct
18 Correct 6 ms 3076 KB Output is correct
19 Correct 4 ms 3072 KB Output is correct
20 Correct 76 ms 7156 KB Output is correct
21 Correct 173 ms 11244 KB Output is correct
22 Runtime error 672 ms 524288 KB Execution killed with signal 9
23 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 729 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #6
0 / 12.0

# Verdict Execution time Memory Grader output
1 Execution timed out 5049 ms 269268 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #7
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2816 KB Output is correct
2 Correct 2 ms 2688 KB Output is correct
3 Correct 2 ms 2688 KB Output is correct
4 Correct 2 ms 2688 KB Output is correct
5 Correct 2 ms 2688 KB Output is correct
6 Correct 3 ms 2816 KB Output is correct
7 Correct 3 ms 2816 KB Output is correct
8 Correct 8 ms 3332 KB Output is correct
9 Correct 8 ms 3332 KB Output is correct
10 Correct 5 ms 3072 KB Output is correct
11 Correct 2 ms 2688 KB Output is correct
12 Correct 7 ms 3332 KB Output is correct
13 Correct 2 ms 2688 KB Output is correct
14 Correct 3 ms 2688 KB Output is correct
15 Correct 27 ms 4980 KB Output is correct
16 Correct 4 ms 3072 KB Output is correct
17 Correct 4 ms 3072 KB Output is correct
18 Correct 6 ms 3076 KB Output is correct
19 Correct 4 ms 3072 KB Output is correct
20 Correct 76 ms 7156 KB Output is correct
21 Correct 173 ms 11244 KB Output is correct
22 Runtime error 672 ms 524288 KB Execution killed with signal 9
23 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2816 KB Output is correct
2 Correct 2 ms 2688 KB Output is correct
3 Correct 2 ms 2688 KB Output is correct
4 Correct 2 ms 2688 KB Output is correct
5 Correct 2 ms 2688 KB Output is correct
6 Correct 3 ms 2816 KB Output is correct
7 Correct 3 ms 2816 KB Output is correct
8 Correct 8 ms 3332 KB Output is correct
9 Correct 8 ms 3332 KB Output is correct
10 Correct 5 ms 3072 KB Output is correct
11 Correct 2 ms 2688 KB Output is correct
12 Correct 7 ms 3332 KB Output is correct
13 Correct 2 ms 2688 KB Output is correct
14 Correct 3 ms 2688 KB Output is correct
15 Correct 27 ms 4980 KB Output is correct
16 Correct 4 ms 3072 KB Output is correct
17 Correct 4 ms 3072 KB Output is correct
18 Correct 6 ms 3076 KB Output is correct
19 Correct 4 ms 3072 KB Output is correct
20 Correct 76 ms 7156 KB Output is correct
21 Correct 173 ms 11244 KB Output is correct
22 Runtime error 672 ms 524288 KB Execution killed with signal 9
23 Halted 0 ms 0 KB -