oj.uz

Submission #675193

# Submission time Handle Problem Language Result Execution time Memory
675193 2022-12-27T02:45:07 Z SanguineChameleon Trampoline (info1cup20_trampoline) C++17
100 / 100
 732 ms 46456 KB 
// BEGIN BOILERPLATE CODE

#include <bits/stdc++.h>
using namespace std;

#ifdef KAMIRULEZ
	const bool kami_loc = true;
	const long long kami_seed = 69420;
#else
	const bool kami_loc = false;
	const long long kami_seed = chrono::steady_clock::now().time_since_epoch().count();
#endif

const string kami_fi = "kamirulez.inp";
const string kami_fo = "kamirulez.out";
mt19937_64 kami_gen(kami_seed);

long long rand_range(long long rmin, long long rmax) {
	uniform_int_distribution<long long> rdist(rmin, rmax);
	return rdist(kami_gen);
}

long double rand_real(long double rmin, long double rmax) {
	uniform_real_distribution<long double> rdist(rmin, rmax);
	return rdist(kami_gen);
}

void file_io(string fi, string fo) {
	if (fi != "" && (!kami_loc || fi == kami_fi)) {
		freopen(fi.c_str(), "r", stdin);
	}
	if (fo != "" && (!kami_loc || fo == kami_fo)) {
		freopen(fo.c_str(), "w", stdout);
	}
}

void set_up() {
	if (kami_loc) {
		file_io(kami_fi, kami_fo);
	}
	ios_base::sync_with_stdio(0);
	cin.tie(0);
}

void just_do_it();

void just_exec_it() {
	if (kami_loc) {
		auto pstart = chrono::steady_clock::now();
		just_do_it();
		auto pend = chrono::steady_clock::now();
		long long ptime = chrono::duration_cast<chrono::milliseconds>(pend - pstart).count();
		string bar(50, '=');
		cout << '\n' << bar << '\n';
		cout << "Time: " << ptime << " ms" << '\n';
	}
	else {
		just_do_it();
	}
}

int main() {
	set_up();
	just_exec_it();
	return 0;
}

// END BOILERPLATE CODE

// BEGIN MAIN CODE

const int ms = 2e5 + 20;
const int st = 20;
map<int, set<pair<int, int>>> f;
int px[ms];
int py[ms];
int nxt[ms][st];

int get(int px, int py) {
	auto it1 = f.find(px);
	if (it1 == f.end()) {
		return 0;
	}
	auto it2 = it1->second.lower_bound(make_pair(py, -1));
	if (it2 == it1->second.end()) {
		return 0;
	}
	return it2->second;
}

void just_do_it() {
	int n;
	cin >> n >> n >> n;
	for (int i = 1; i <= n; i++) {
		cin >> px[i] >> py[i];
		f[px[i]].insert({py[i], i});
	}
	for (int u = 1; u <= n; u++) {
		nxt[u][0] = get(px[u] + 1, py[u]);
	}
	for (int k = 1; k < st; k++) {
		for (int u = 1; u <= n; u++) {
			nxt[u][k] = nxt[nxt[u][k - 1]][k - 1];
		}
	}
	int q;
	cin >> q;
	for (int i = 0; i < q; i++) {
		int sx, sy, tx, ty;
		cin >> sx >> sy >> tx >> ty;
		if (sx == tx) {
			if (sy <= ty) {
				cout << "Yes" << '\n';
			}
			else {
				cout << "No" << '\n';
			}
			continue;
		}
		else if (sx > tx) {
			cout << "No" << '\n';
			continue;
		}
		int u = get(sx, sy);
		for (int k = 0; k < st; k++) {
			if (((tx - sx - 1) >> k) & 1) {
				u = nxt[u][k];
			}
		}
		if (u == 0) {
			cout << "No" << '\n';
			continue;
		}
		if (py[u] <= ty) {
			cout << "Yes" << '\n';
		}
		else {
			cout << "No" << '\n';
		}
	}
}

// END MAIN CODE

Compilation message

trampoline.cpp: In function 'void file_io(std::string, std::string)':
trampoline.cpp:30:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   30 |   freopen(fi.c_str(), "r", stdin);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
trampoline.cpp:33:10: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   33 |   freopen(fo.c_str(), "w", stdout);
      |   ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 1492 KB 200 token(s): yes count is 21, no count is 179
2 Correct 7 ms 1688 KB 200 token(s): yes count is 70, no count is 130
3 Correct 4 ms 1236 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 231 ms 27096 KB 4000 token(s): yes count is 99, no count is 3901
2 Correct 231 ms 27136 KB 4000 token(s): yes count is 91, no count is 3909
3 Correct 264 ms 26860 KB 4000 token(s): yes count is 4000, no count is 0
4 Correct 253 ms 27152 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 391 ms 27728 KB 200000 token(s): yes count is 110486, no count is 89514
2 Correct 390 ms 27596 KB 200000 token(s): yes count is 114664, no count is 85336
3 Correct 438 ms 27600 KB 200000 token(s): yes count is 86232, no count is 113768
4 Correct 422 ms 27940 KB 200000 token(s): yes count is 94603, no count is 105397
5 Correct 411 ms 27788 KB 200000 token(s): yes count is 94148, no count is 105852
6 Correct 494 ms 33836 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 6 ms 960 KB 5000 token(s): yes count is 3238, no count is 1762
2 Correct 6 ms 980 KB 5000 token(s): yes count is 3837, no count is 1163
3 Correct 6 ms 1492 KB 5000 token(s): yes count is 4104, no count is 896
4 Correct 6 ms 980 KB 5000 token(s): yes count is 3934, no count is 1066
5 Correct 7 ms 1108 KB 5000 token(s): yes count is 3384, no count is 1616
6 Correct 6 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 590 ms 35224 KB 200000 token(s): yes count is 171404, no count is 28596
2 Correct 542 ms 29484 KB 200000 token(s): yes count is 161254, no count is 38746
3 Correct 412 ms 27556 KB 200000 token(s): yes count is 117455, no count is 82545
4 Correct 732 ms 46456 KB 200000 token(s): yes count is 182118, no count is 17882
5 Correct 522 ms 34332 KB 200000 token(s): yes count is 167565, no count is 32435
6 Correct 441 ms 27596 KB 200000 token(s): yes count is 156797, no count is 43203
7 Correct 433 ms 27608 KB 200000 token(s): yes count is 156797, no count is 43203
8 Correct 438 ms 27692 KB 200000 token(s): yes count is 122100, no count is 77900
9 Correct 588 ms 33912 KB 200000 token(s): yes count is 139670, no count is 60330
10 Correct 571 ms 33924 KB 200000 token(s): yes count is 165806, no count is 34194
11 Correct 665 ms 40144 KB 200000 token(s): yes count is 175646, no count is 24354
12 Correct 388 ms 27660 KB 200000 token(s): yes count is 134695, no count is 65305
13 Correct 373 ms 27608 KB 200000 token(s): yes count is 126733, no count is 73267
14 Correct 469 ms 27684 KB 200000 token(s): yes count is 155290, no count is 44710
15 Correct 437 ms 27624 KB 200000 token(s): yes count is 129674, no count is 70326