oj.uz

Submission #520276

# Submission time Handle Problem Language Result Execution time Memory
520276 2022-01-29T04:50:28 Z amunduzbaev Trampoline (info1cup20_trampoline) C++14
100 / 100
 666 ms 65256 KB 
#include "bits/stdc++.h"
using namespace std;
 
#define ar array
#define int long long

signed main(){
	ios::sync_with_stdio(0); cin.tie(0);
	
	int r, c, n; cin>>r>>c>>n;
	vector<ar<int, 2>> t(n);
	for(int i=0;i<n;i++) cin>>t[i][0]>>t[i][1];
	sort(t.begin(), t.end());
	
	vector<vector<int>> in(n, vector<int>(20, -1));
	map<int, vector<ar<int, 2>>> mm;
	for(int i=0;i<n;i++){
		mm[t[i][0]].push_back({t[i][1], i});
	} 
	for(auto& [x, v] : mm) sort(v.begin(), v.end());
	
	//~ for(int i=0;i<n;i++){
		//~ cout<<t[i][0]<<" "<<t[i][1];
		//~ cout<<"\n";
	//~ } cout<<"\n";
	
	for(int i=n-1;~i;i--){
		if(mm.count(t[i][0] + 1)){
			auto& v = mm[t[i][0] + 1];
			auto it = lower_bound(v.begin(), v.end(), (ar<int, 2>){t[i][1], -1});
			//~ for(auto x : v) cout<<x[0]<<" "<<x[1]<<"\n";
			if(it != v.end()){
				in[i][0] = (*it)[1];
			}
		}
		for(int j=1;j<20;j++){
			if(in[i][j-1] == -1) continue;
			in[i][j] = in[in[i][j-1]][j-1];
		}
	}
	
	int m; cin>>m;
	for(int j=0;j<m;j++){
		ar<int, 2> a, b; cin>>a[0]>>a[1]>>b[0]>>b[1];
		if(b[0] < a[0] || b[1] < a[1]){
			cout<<"No\n";
			continue;
		} if(a[0] == b[0]){
			cout<<"Yes\n";
			continue;
		}
		
		int d = b[0] - a[0] - 1;
		if(d > 1e6) { cout<<"No\n"; continue; }
		auto& v = mm[a[0]];
		auto it = lower_bound(v.begin(), v.end(), (ar<int, 2>){a[1], -1});
		if(it == v.end()){
			cout<<"No\n";
			continue;
		}
		
		int i = (*it)[1];
		for(int j=19;~j;j--){
			if((d >> j & 1) && ~i){
				i = in[i][j];
			}
		}
		
		if(~i && t[i][1] <= b[1]){
			cout<<"Yes\n";
		} else {
			cout<<"No\n";
		}
	}
}

Compilation message

trampoline.cpp: In function 'int main()':
trampoline.cpp:20:12: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   20 |  for(auto& [x, v] : mm) sort(v.begin(), v.end());
      |            ^

Subtask #1
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2380 KB 200 token(s): yes count is 21, no count is 179
2 Correct 7 ms 2624 KB 200 token(s): yes count is 70, no count is 130
3 Correct 4 ms 2000 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 107 ms 47812 KB 4000 token(s): yes count is 99, no count is 3901
2 Correct 113 ms 49608 KB 4000 token(s): yes count is 91, no count is 3909
3 Correct 112 ms 48192 KB 4000 token(s): yes count is 4000, no count is 0
4 Correct 112 ms 49528 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 235 ms 47464 KB 200000 token(s): yes count is 110486, no count is 89514
2 Correct 225 ms 47124 KB 200000 token(s): yes count is 114664, no count is 85336
3 Correct 219 ms 46656 KB 200000 token(s): yes count is 86232, no count is 113768
4 Correct 232 ms 47848 KB 200000 token(s): yes count is 94603, no count is 105397
5 Correct 231 ms 47736 KB 200000 token(s): yes count is 94148, no count is 105852
6 Correct 314 ms 53500 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 1484 KB 5000 token(s): yes count is 3238, no count is 1762
2 Correct 6 ms 1484 KB 5000 token(s): yes count is 3837, no count is 1163
3 Correct 6 ms 1868 KB 5000 token(s): yes count is 4104, no count is 896
4 Correct 5 ms 1484 KB 5000 token(s): yes count is 3934, no count is 1066
5 Correct 8 ms 1612 KB 5000 token(s): yes count is 3384, no count is 1616
6 Correct 5 ms 1484 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 506 ms 54624 KB 200000 token(s): yes count is 171404, no count is 28596
2 Correct 391 ms 49400 KB 200000 token(s): yes count is 161254, no count is 38746
3 Correct 255 ms 46628 KB 200000 token(s): yes count is 117455, no count is 82545
4 Correct 666 ms 65256 KB 200000 token(s): yes count is 182118, no count is 17882
5 Correct 371 ms 53276 KB 200000 token(s): yes count is 167565, no count is 32435
6 Correct 266 ms 47412 KB 200000 token(s): yes count is 156797, no count is 43203
7 Correct 266 ms 47456 KB 200000 token(s): yes count is 156797, no count is 43203
8 Correct 252 ms 46516 KB 200000 token(s): yes count is 122100, no count is 77900
9 Correct 482 ms 53372 KB 200000 token(s): yes count is 139670, no count is 60330
10 Correct 505 ms 53444 KB 200000 token(s): yes count is 165806, no count is 34194
11 Correct 576 ms 58948 KB 200000 token(s): yes count is 175646, no count is 24354
12 Correct 221 ms 47600 KB 200000 token(s): yes count is 134695, no count is 65305
13 Correct 224 ms 47340 KB 200000 token(s): yes count is 126733, no count is 73267
14 Correct 308 ms 54176 KB 200000 token(s): yes count is 155290, no count is 44710
15 Correct 251 ms 59216 KB 200000 token(s): yes count is 129674, no count is 70326