oj.uz

Submission #920881

# Submission time Handle Problem Language Result Execution time Memory
920881 2024-02-03T07:13:58 Z siewjh Trampoline (info1cup20_trampoline) C++17
100 / 100
 758 ms 51780 KB 
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 200005;
int rv[MAXN], cv[MAXN], nxt[MAXN][20];
map<int, vector<pair<int, int>>> m;
int xpar(int a, int x){
	for (int k = 19; k >= 0; k--){
		if (a == -1) break;
		if (x & (1 << k)) a = nxt[a][k];
	}
	return a;
}
bool solve(){
	int sr, sc, er, ec; cin >> sr >> sc >> er >> ec;
	if (er < sr || ec < sc) return 0;
	if (er == sr) return 1;
	if (!m.count(sr)) return 0;
	auto it = lower_bound(m[sr].begin(), m[sr].end(), make_pair(sc, -1));
	if (it == m[sr].end()) return 0;
	int finc = xpar(it->second, er - sr - 1);
	if (finc == -1) return 0;
	return cv[finc] <= ec;
}
int main(){
	ios_base::sync_with_stdio(false);
	cin.tie(0); cout.tie(0);
	int rows, cols, nums; cin >> rows >> cols >> nums;
	for (int i = 0; i < nums; i++){
		int r, c; cin >> r >> c;
		rv[i] = r; cv[i] = c;
		m[r].push_back({c, i});
	}
	for (auto &[r, v] : m) sort(v.begin(), v.end());
	for (int i = 0; i < nums; i++){
		int r = rv[i], c = cv[i];
		if (!m.count(r + 1)) nxt[i][0] = -1;
		else{
			auto it = lower_bound(m[r + 1].begin(), m[r + 1].end(), make_pair(c, -1));
			if (it == m[r + 1].end()) nxt[i][0] = -1;
			else nxt[i][0] = it->second;
		}
	}
	for (int k = 1; k <= 19; k++)
		for (int i = 0; i < nums; i++){
			if (nxt[i][k - 1] == -1) nxt[i][k] = -1;
			else nxt[i][k] = nxt[nxt[i][k - 1]][k - 1];
		}
	int queries; cin >> queries;
	while (queries--) cout << (solve() ? "Yes" : "No") << '\n';
}

Subtask #1
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 4952 KB 200 token(s): yes count is 21, no count is 179
2 Correct 5 ms 4956 KB 200 token(s): yes count is 70, no count is 130
3 Correct 4 ms 4700 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 128 ms 22432 KB 4000 token(s): yes count is 99, no count is 3901
2 Correct 171 ms 22604 KB 4000 token(s): yes count is 91, no count is 3909
3 Correct 119 ms 21536 KB 4000 token(s): yes count is 4000, no count is 0
4 Correct 139 ms 22584 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 204 ms 32108 KB 200000 token(s): yes count is 110486, no count is 89514
2 Correct 190 ms 31988 KB 200000 token(s): yes count is 114664, no count is 85336
3 Correct 243 ms 32176 KB 200000 token(s): yes count is 86232, no count is 113768
4 Correct 295 ms 32596 KB 200000 token(s): yes count is 94603, no count is 105397
5 Correct 263 ms 32600 KB 200000 token(s): yes count is 94148, no count is 105852
6 Correct 353 ms 38388 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 7 ms 4956 KB 5000 token(s): yes count is 3238, no count is 1762
2 Correct 6 ms 4956 KB 5000 token(s): yes count is 3837, no count is 1163
3 Correct 7 ms 5468 KB 5000 token(s): yes count is 4104, no count is 896
4 Correct 5 ms 4956 KB 5000 token(s): yes count is 3934, no count is 1066
5 Correct 8 ms 5192 KB 5000 token(s): yes count is 3384, no count is 1616
6 Correct 5 ms 4956 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 524 ms 39580 KB 200000 token(s): yes count is 171404, no count is 28596
2 Correct 382 ms 34844 KB 200000 token(s): yes count is 161254, no count is 38746
3 Correct 214 ms 32336 KB 200000 token(s): yes count is 117455, no count is 82545
4 Correct 758 ms 51780 KB 200000 token(s): yes count is 182118, no count is 17882
5 Correct 415 ms 38684 KB 200000 token(s): yes count is 167565, no count is 32435
6 Correct 222 ms 32092 KB 200000 token(s): yes count is 156797, no count is 43203
7 Correct 247 ms 32232 KB 200000 token(s): yes count is 156797, no count is 43203
8 Correct 197 ms 31932 KB 200000 token(s): yes count is 122100, no count is 77900
9 Correct 523 ms 38584 KB 200000 token(s): yes count is 139670, no count is 60330
10 Correct 536 ms 38896 KB 200000 token(s): yes count is 165806, no count is 34194
11 Correct 612 ms 44492 KB 200000 token(s): yes count is 175646, no count is 24354
12 Correct 174 ms 31676 KB 200000 token(s): yes count is 134695, no count is 65305
13 Correct 179 ms 32200 KB 200000 token(s): yes count is 126733, no count is 73267
14 Correct 267 ms 32708 KB 200000 token(s): yes count is 155290, no count is 44710
15 Correct 178 ms 31772 KB 200000 token(s): yes count is 129674, no count is 70326