oj.uz

Submission #675259

# Submission time Handle Problem Language Result Execution time Memory
675259 2022-12-27T03:37:23 Z vjudge1 Trampoline (info1cup20_trampoline) C++17
100 / 100
 739 ms 40968 KB 
#include <bits/stdc++.h>
using namespace std;

void main_program();

signed main(){
	ios_base::sync_with_stdio(0); cin.tie(0);
	main_program();
}

int R, C, n, q;
vector<pair<int, int>> inp;
map<int, vector<pair<int, int>>> mp;
int nxt[21][200'005];

void main_program(){
	cin >> R >> C >> n;

	inp.resize(n+1);

	for (int i = 0; i < n; i++){
		int a, b; cin >> a >> b;
		inp[i+1] = {a, b};
		mp[a].emplace_back(b, i+1);
	}

	for (auto &[key, value]: mp){
		sort(value.begin(), value.end());
	}

	for (int i = 0; i <= n; i++) nxt[0][i] = 0;

	for (auto it = mp.rbegin(); it != mp.rend(); it++){
		auto [x, vy] = *it;
		if (!mp.count(x+1)) continue;
		for (auto [y, i]: vy){
			auto it2 = lower_bound(mp[x+1].begin(), mp[x+1].end(), make_pair(y, -1));
			if (it2 == mp[x+1].end()) continue;
			auto [x2, j] = *it2;

			// cout << "EDGE " << i << " " << j << "\n";
			nxt[0][i] = j;
		}
	}

	for (int lg = 1; lg < 21; lg++){
		for (int i = 0; i <= n; i++){
			nxt[lg][i] = nxt[lg-1][nxt[lg-1][i]];
		}
	}

	cin >> q;

	for (int qr = 0; qr < q; qr++){
		int x1, y1, x2, y2; cin >> x1 >> y1 >> x2 >> y2;
		if (x1 > x2){
			cout << "No\n";
			continue;
		}
		if (x1 == x2){
			if (y1 <= y2) cout << "Yes\n";
			else cout << "No\n";
			continue;
		}
		if (y1 > y2){
			cout << "No\n";
			continue;
		}

		int D = x2 - x1 - 1;

		int crr = 0;
		if (mp.count(x1)){
			auto it = lower_bound(mp[x1].begin(), mp[x1].end(), make_pair(y1, -1));
			if (it != mp[x1].end()){
				crr = (*it).second;
			}
		}

		// cout << ":: " << crr << "\n";

		for (int lg = 20; lg >= 0; lg--){
			if ((D >> lg) & 1) crr = nxt[lg][crr];
		}

		if (!crr) cout << "No\n";
		else{
			if (inp[crr].second <= y2) cout << "Yes\n";
			else cout << "No\n";
		}
	}
}

Subtask #1
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 1316 KB 200 token(s): yes count is 21, no count is 179
2 Correct 4 ms 1492 KB 200 token(s): yes count is 70, no count is 130
3 Correct 3 ms 1196 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 86 ms 21388 KB 4000 token(s): yes count is 99, no count is 3901
2 Correct 107 ms 21376 KB 4000 token(s): yes count is 91, no count is 3909
3 Correct 72 ms 20612 KB 4000 token(s): yes count is 4000, no count is 0
4 Correct 84 ms 21364 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 176 ms 21496 KB 200000 token(s): yes count is 110486, no count is 89514
2 Correct 181 ms 21468 KB 200000 token(s): yes count is 114664, no count is 85336
3 Correct 196 ms 21328 KB 200000 token(s): yes count is 86232, no count is 113768
4 Correct 251 ms 21732 KB 200000 token(s): yes count is 94603, no count is 105397
5 Correct 221 ms 21680 KB 200000 token(s): yes count is 94148, no count is 105852
6 Correct 404 ms 27644 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 5 ms 980 KB 5000 token(s): yes count is 3238, no count is 1762
2 Correct 5 ms 996 KB 5000 token(s): yes count is 3837, no count is 1163
3 Correct 7 ms 1456 KB 5000 token(s): yes count is 4104, no count is 896
4 Correct 5 ms 980 KB 5000 token(s): yes count is 3934, no count is 1066
5 Correct 6 ms 1108 KB 5000 token(s): yes count is 3384, no count is 1616
6 Correct 4 ms 980 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 530 ms 28840 KB 200000 token(s): yes count is 171404, no count is 28596
2 Correct 428 ms 23900 KB 200000 token(s): yes count is 161254, no count is 38746
3 Correct 196 ms 21304 KB 200000 token(s): yes count is 117455, no count is 82545
4 Correct 739 ms 40968 KB 200000 token(s): yes count is 182118, no count is 17882
5 Correct 433 ms 27872 KB 200000 token(s): yes count is 167565, no count is 32435
6 Correct 235 ms 21660 KB 200000 token(s): yes count is 156797, no count is 43203
7 Correct 213 ms 21652 KB 200000 token(s): yes count is 156797, no count is 43203
8 Correct 218 ms 21176 KB 200000 token(s): yes count is 122100, no count is 77900
9 Correct 617 ms 27612 KB 200000 token(s): yes count is 139670, no count is 60330
10 Correct 634 ms 27792 KB 200000 token(s): yes count is 165806, no count is 34194
11 Correct 670 ms 33756 KB 200000 token(s): yes count is 175646, no count is 24354
12 Correct 204 ms 20716 KB 200000 token(s): yes count is 134695, no count is 65305
13 Correct 337 ms 21120 KB 200000 token(s): yes count is 126733, no count is 73267
14 Correct 277 ms 21708 KB 200000 token(s): yes count is 155290, no count is 44710
15 Correct 309 ms 21268 KB 200000 token(s): yes count is 129674, no count is 70326