답안 #387587

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
387587 2021-04-09T02:46:47 Z 8e7 Trampoline (info1cup20_trampoline) C++14
0 / 100
174 ms 61732 KB
//Challenge: Accepted
#include <iostream>
#include <algorithm>
#include <vector>
#include <utility>
#define ll long long
#define maxn 200005
#define pii pair<int, int>
#define ff first
#define ss second
#define io ios_base::sync_with_stdio(0);cin.tie(0);
using namespace std;
//#include <bits/extc++.h>
//using namespace __gnu_pbds;
//template<class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
//find by order, order of key
vector<int> xv;
pii orig[maxn];

pii pos[maxn];
vector<int> pnt[maxn], ind[maxn];
bool con[maxn];
int to[18][maxn];

int main() {
	io
	int r, c, n;
	cin >> r >> c >> n;
	for (int i = 0;i < n;i++) {
		cin >> orig[i].ff >> orig[i].ss;
		xv.push_back(orig[i].ff);
	}
	sort(xv.begin(), xv.end());
	xv.resize(int(unique(xv.begin(), xv.end()) - xv.begin()));
	for (int i = 0;i < n;i++) {
		int posid = lower_bound(xv.begin(), xv.end(), orig[i].ff) - xv.begin();
		pnt[posid].push_back(orig[i].ss);
	}
	int tot = 1;
	for (int i = 0;i < n;i++) {
		sort(pnt[i].begin(), pnt[i].end());
		for (int j = 0;j < pnt[i].size();j++) {
			pos[tot] = make_pair(i, pnt[i][j]);
			ind[i].push_back(tot++);
		}
		if (i < n - 1) {
			con[i] = xv[i + 1] == xv[i] + 1 ? 1 : 0;
		}
	}
	pos[tot] = make_pair(r + 1, c + 1);
	for (int i = 1;i <= tot;i++) {
		if (con[pos[i].ff]) {
			int id = lower_bound(pnt[pos[i].ff + 1].begin(), pnt[pos[i].ff + 1].end(), pos[i].ss) - pnt[pos[i].ff + 1].begin();
			if (id >= ind[pos[i].ff + 1].size()) {
				to[0][i] = tot;
			} else {
				to[0][i] = ind[pos[i].ff + 1][id];
			}
		} else {
			to[0][i] = tot;
		}
	}
	for (int i = 1;i < 18;i++) {
		for (int j = 1;j <= tot;j++) to[i][j] = to[i - 1][to[i - 1][j]];
	}

	int t;
	cin >> t;
	while (t--) {
		int x1, y1, x2, y2;
		cin >> x1 >> y1 >> x2 >> y2;
		if (x1 == x2) {
			cout << (y1 <= y2 ? "Yes" : "No") << "\n";
		} else {
			int comp = lower_bound(xv.begin(), xv.end(), x1) - xv.begin();
			int ans = 1;
			if (comp >= xv.size() || xv[comp] != x1) {
				ans = 0;
			} else {
				x2--;
				int dif = x2 - x1;
				int id = lower_bound(pnt[comp].begin(), pnt[comp].end(), y1) - pnt[comp].begin();
				if (id >= pnt[comp].size()) {
					ans = 0;
				} else {
					int cur = ind[comp][id], cnt = 0;
					while (dif) {
						if (dif & 1) cur = to[cnt][cur];
						cnt++, dif>>=1;
					}
					if (pos[cur].ss > y2) {
						ans = 0;
					}
				}
			}

			cout << (ans ? "Yes" : "No") << "\n";
		}
	}
}
/*
4 5 2
2 2
3 4
3
2 1 4 5
1 2 1 4
2 3 4 4

 */

Compilation message

trampoline.cpp: In function 'int main()':
trampoline.cpp:42:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   42 |   for (int j = 0;j < pnt[i].size();j++) {
      |                  ~~^~~~~~~~~~~~~~~
trampoline.cpp:54:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |    if (id >= ind[pos[i].ff + 1].size()) {
      |        ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
trampoline.cpp:77:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   77 |    if (comp >= xv.size() || xv[comp] != x1) {
      |        ~~~~~^~~~~~~~~~~~
trampoline.cpp:83:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   83 |     if (id >= pnt[comp].size()) {
      |         ~~~^~~~~~~~~~~~~~~~~~~
# 결과 실행 시간 메모리 Grader output
1 Runtime error 21 ms 21612 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Correct 113 ms 30476 KB 4000 token(s): yes count is 99, no count is 3901
2 Correct 109 ms 30504 KB 4000 token(s): yes count is 91, no count is 3909
3 Correct 117 ms 30016 KB 4000 token(s): yes count is 4000, no count is 0
4 Runtime error 166 ms 61732 KB Execution killed with signal 11
# 결과 실행 시간 메모리 Grader output
1 Runtime error 111 ms 33680 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Runtime error 19 ms 19916 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -
# 결과 실행 시간 메모리 Grader output
1 Runtime error 174 ms 39812 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -