oj.uz

Submission #674466

# Submission time Handle Problem Language Result Execution time Memory
674466 2022-12-24T10:53:19 Z QwertyPi Trampoline (info1cup20_trampoline) C++14
100 / 100
 1088 ms 52772 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(auto& i : M) sort(all(i.second));
	
	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];
		}
	}
	
	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
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1236 KB 200 token(s): yes count is 21, no count is 179
2 Correct 8 ms 1492 KB 200 token(s): yes count is 70, no count is 130
3 Correct 5 ms 1108 KB 197 token(s): yes count is 25, no count is 172

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 197 ms 21356 KB 4000 token(s): yes count is 99, no count is 3901
2 Correct 203 ms 23476 KB 4000 token(s): yes count is 91, no count is 3909
3 Correct 174 ms 22140 KB 4000 token(s): yes count is 4000, no count is 0
4 Correct 212 ms 23220 KB 4000 token(s): yes count is 1991, no count is 2009

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 467 ms 21100 KB 200000 token(s): yes count is 110486, no count is 89514
2 Correct 488 ms 20984 KB 200000 token(s): yes count is 114664, no count is 85336
3 Correct 503 ms 21196 KB 200000 token(s): yes count is 86232, no count is 113768
4 Correct 586 ms 21952 KB 200000 token(s): yes count is 94603, no count is 105397
5 Correct 596 ms 21796 KB 200000 token(s): yes count is 94148, no count is 105852
6 Correct 756 ms 27556 KB 200000 token(s): yes count is 97163, no count is 102837

Subtask #4
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 852 KB 5000 token(s): yes count is 3238, no count is 1762
2 Correct 12 ms 1108 KB 5000 token(s): yes count is 3837, no count is 1163
3 Correct 13 ms 1620 KB 5000 token(s): yes count is 4104, no count is 896
4 Correct 12 ms 1096 KB 5000 token(s): yes count is 3934, no count is 1066
5 Correct 14 ms 1300 KB 5000 token(s): yes count is 3384, no count is 1616
6 Correct 11 ms 1112 KB 5000 token(s): yes count is 3390, no count is 1610

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 901 ms 28792 KB 200000 token(s): yes count is 171404, no count is 28596
2 Correct 735 ms 35460 KB 200000 token(s): yes count is 161254, no count is 38746
3 Correct 510 ms 33108 KB 200000 token(s): yes count is 117455, no count is 82545
4 Correct 1088 ms 52772 KB 200000 token(s): yes count is 182118, no count is 17882
5 Correct 692 ms 39412 KB 200000 token(s): yes count is 167565, no count is 32435
6 Correct 522 ms 32940 KB 200000 token(s): yes count is 156797, no count is 43203
7 Correct 520 ms 32840 KB 200000 token(s): yes count is 156797, no count is 43203
8 Correct 490 ms 32700 KB 200000 token(s): yes count is 122100, no count is 77900
9 Correct 857 ms 39168 KB 200000 token(s): yes count is 139670, no count is 60330
10 Correct 901 ms 39752 KB 200000 token(s): yes count is 165806, no count is 34194
11 Correct 1030 ms 45260 KB 200000 token(s): yes count is 175646, no count is 24354
12 Correct 464 ms 32556 KB 200000 token(s): yes count is 134695, no count is 65305
13 Correct 466 ms 32908 KB 200000 token(s): yes count is 126733, no count is 73267
14 Correct 606 ms 33540 KB 200000 token(s): yes count is 155290, no count is 44710
15 Correct 482 ms 32668 KB 200000 token(s): yes count is 129674, no count is 70326