oj.uz

Submission #674465

# Submission time Handle Problem Language Result Execution time Memory
674465 2022-12-24T10:48:12 Z QwertyPi Trampoline (info1cup20_trampoline) C++14
11 / 100
 885 ms 40372 KB 
#include <bits/stdc++.h>
#define all(x) x.begin(), x.end()
#define fi first
#define se second
using namespace std;

map<int, vector<pair<int, int>>> M;

pair<int, int> pts[200001];
int nxt[200001], anc[200001][20];

int kth_anc(int u, int k){
	for(int j = 19; j >= 0; j--){
		if(k >= (1 << j)) u = anc[u][j], k -= (1 << j);
	}
	return u;
}

int main(){
	cin.tie(0); cout.tie(0)->sync_with_stdio(false);
	int r, c, n; cin >> r >> c >> n;
	for(int i = 0; i < n; i++){
		int x, y; cin >> x >> y;
		M[x].push_back({y, i});
		pts[i] = {x, y};
	}

	for(int i = 0; i < n; i++){
		int x = pts[i].fi, y = pts[i].se;
		if(M.count(x + 1) && lower_bound(all(M[x + 1]), pair<int, int>{y, -1}) != M[x + 1].end()){
			pair<int, int> p = *lower_bound(all(M[x + 1]), pair<int, int>{y, -1});
			nxt[i] = p.se;
		}else{
			nxt[i] = i;
		}
	}

	for(int j = 0; j < n; j++) anc[j][0] = nxt[j];
	for(int i = 1; i < 20; i++){
		for(int j = 0; j < n; j++){
			anc[j][i] = anc[anc[j][i - 1]][i - 1];
		}
	}
	for(auto& i : M) sort(all(i.second));

	int q; cin >> q;
	for(int i = 0; i < q; i++){
		int r1, c1, r2, c2; cin >> r1 >> c1 >> r2 >> c2;
		if(r1 == r2 && c1 <= c2) { cout << "Yes" << endl; continue; }
		if(c1 > c2 || r1 > r2) { cout << "No" << endl; continue; }
		if(M.count(r1) && lower_bound(all(M[r1]), pair<int, int>{c1, -1}) != M[r1].end()){
			int fr = lower_bound(all(M[r1]), pair<int, int>{c1, -1})->se;
			int v = kth_anc(fr, r2 - r1 - 1);
			if(pts[v].fi != r2 - 1 || pts[v].se > c2) { cout << "No" << endl; continue; }
			cout << "Yes" << endl;
		}else{
			cout << "No" << endl;
		}
	}
}

Subtask #1
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 1236 KB expected YES, found NO [1st token]
2 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 188 ms 23336 KB expected YES, found NO [3rd token]
2 Halted 0 ms 0 KB -

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 445 ms 32804 KB 200000 token(s): yes count is 110486, no count is 89514
2 Correct 472 ms 32768 KB 200000 token(s): yes count is 114664, no count is 85336
3 Correct 499 ms 32956 KB 200000 token(s): yes count is 86232, no count is 113768
4 Correct 576 ms 33464 KB 200000 token(s): yes count is 94603, no count is 105397
5 Correct 579 ms 33444 KB 200000 token(s): yes count is 94148, no count is 105852
6 Correct 762 ms 39204 KB 200000 token(s): yes count is 97163, no count is 102837

Subtask #4
0 / 19.0

# Verdict Execution time Memory Grader output
1 Incorrect 11 ms 1108 KB expected YES, found NO [1st token]
2 Halted 0 ms 0 KB -

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Incorrect 885 ms 40372 KB expected YES, found NO [1st token]
2 Halted 0 ms 0 KB -