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Submission #886207

# Submission time Handle Problem Language Result Execution time Memory
886207 2023-12-11T15:02:42 Z vjudge1 Curtains (NOI23_curtains) C++17
100 / 100
 665 ms 68648 KB 
#include <bits/stdc++.h>
using namespace std;
const int N = 2e6 + 7;
const int inf = 1e9 + 7;
struct SEGT{
	int tree[N];
	SEGT(){
		for(int i = 0;i<N;i++){
			tree[i] = inf;
		}
	}
	void update(int ind , int l , int r , int ql , int qr){
		if(l >= ql and r <= qr){
			tree[ind] = min(tree[ind] , qr);
			return;
		}
		else if(l > qr or r < ql){
			return;
		}
		else{
			int mid = (l+r)/2;
			update(ind*2,l,mid,ql,qr);
			update(ind*2+1,mid+1,r,ql,qr);
			tree[ind] = min(tree[ind] , max(tree[ind*2] , tree[ind*2+1]));
		}
	}
	bool query(int ind , int l , int r , int ql , int qr){
		if(l >= ql and r <= qr){
			return tree[ind] <= qr;
		}
		else if(l > qr or r < ql){
			return 1;
		}
		else{
			int mid = (l+r)/2;
			return query(ind*2,l,mid,ql,qr) and query(ind*2+1,mid+1,r,ql,qr);
		}
	}
} segt;
void solve(){
	int n,m,q;
	cin >> n >> m >> q;
	vector < int > ran[n+1];
	vector < pair < int , int > > query[n+1];
	for(int i = 0;i<m;i++){
		int x,y;
		cin >> x >> y;
		ran[x].push_back(y);
	}
	for(int i = 0;i<q;i++){
		int x,y;
		cin >> x >> y;
		query[x].push_back({y,i});
	}
	int ans[q];
	for(int i = n;i>0;i--){
		for(auto itr : ran[i]){
			segt.update(1,1,n,i,itr);
		}
		for(auto itr : query[i]){
			ans[itr.second] = segt.query(1,1,n,i,itr.first);
		}
	}
	for(int i = 0;i<q;i++){
		cout << (ans[i] ? "YES\n" : "NO\n");
	}
}
signed main(){
	ios_base::sync_with_stdio(0);cin.tie(0);
	int testcase = 1;//cin >> testcase;
	while(testcase--)solve();
}

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8028 KB Output is correct
2 Correct 2 ms 8284 KB Output is correct
3 Correct 2 ms 8280 KB Output is correct
4 Correct 2 ms 8284 KB Output is correct
5 Correct 2 ms 8284 KB Output is correct
6 Correct 3 ms 8284 KB Output is correct
7 Correct 4 ms 8284 KB Output is correct
8 Correct 2 ms 8284 KB Output is correct
9 Correct 3 ms 8284 KB Output is correct
10 Correct 2 ms 8284 KB Output is correct
11 Correct 2 ms 8284 KB Output is correct
12 Correct 2 ms 8284 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8028 KB Output is correct
2 Correct 2 ms 8284 KB Output is correct
3 Correct 2 ms 8280 KB Output is correct
4 Correct 2 ms 8284 KB Output is correct
5 Correct 2 ms 8284 KB Output is correct
6 Correct 3 ms 8284 KB Output is correct
7 Correct 4 ms 8284 KB Output is correct
8 Correct 2 ms 8284 KB Output is correct
9 Correct 3 ms 8284 KB Output is correct
10 Correct 2 ms 8284 KB Output is correct
11 Correct 2 ms 8284 KB Output is correct
12 Correct 2 ms 8284 KB Output is correct
13 Correct 3 ms 8284 KB Output is correct
14 Correct 3 ms 8284 KB Output is correct
15 Correct 3 ms 8284 KB Output is correct
16 Correct 3 ms 8280 KB Output is correct
17 Correct 3 ms 8452 KB Output is correct
18 Correct 3 ms 8284 KB Output is correct
19 Correct 3 ms 8284 KB Output is correct
20 Correct 3 ms 8284 KB Output is correct
21 Correct 3 ms 8304 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8028 KB Output is correct
2 Correct 2 ms 8284 KB Output is correct
3 Correct 2 ms 8280 KB Output is correct
4 Correct 2 ms 8284 KB Output is correct
5 Correct 2 ms 8284 KB Output is correct
6 Correct 3 ms 8284 KB Output is correct
7 Correct 4 ms 8284 KB Output is correct
8 Correct 2 ms 8284 KB Output is correct
9 Correct 3 ms 8284 KB Output is correct
10 Correct 2 ms 8284 KB Output is correct
11 Correct 2 ms 8284 KB Output is correct
12 Correct 2 ms 8284 KB Output is correct
13 Correct 3 ms 8284 KB Output is correct
14 Correct 3 ms 8284 KB Output is correct
15 Correct 3 ms 8284 KB Output is correct
16 Correct 3 ms 8280 KB Output is correct
17 Correct 3 ms 8452 KB Output is correct
18 Correct 3 ms 8284 KB Output is correct
19 Correct 3 ms 8284 KB Output is correct
20 Correct 3 ms 8284 KB Output is correct
21 Correct 3 ms 8304 KB Output is correct
22 Correct 94 ms 18000 KB Output is correct
23 Correct 120 ms 18256 KB Output is correct
24 Correct 149 ms 18916 KB Output is correct
25 Correct 274 ms 21168 KB Output is correct
26 Correct 133 ms 18172 KB Output is correct
27 Correct 250 ms 21420 KB Output is correct
28 Correct 237 ms 21160 KB Output is correct
29 Correct 102 ms 18308 KB Output is correct
30 Correct 104 ms 16216 KB Output is correct
31 Correct 112 ms 16508 KB Output is correct
32 Correct 213 ms 19568 KB Output is correct
33 Correct 103 ms 16308 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 8024 KB Output is correct
2 Correct 3 ms 8284 KB Output is correct
3 Correct 2 ms 8280 KB Output is correct
4 Correct 2 ms 8280 KB Output is correct
5 Correct 3 ms 8284 KB Output is correct
6 Correct 4 ms 8284 KB Output is correct
7 Correct 4 ms 8284 KB Output is correct
8 Correct 111 ms 16196 KB Output is correct
9 Correct 133 ms 16576 KB Output is correct
10 Correct 255 ms 19360 KB Output is correct
11 Correct 101 ms 16312 KB Output is correct
12 Correct 68 ms 16356 KB Output is correct
13 Correct 68 ms 16320 KB Output is correct
14 Correct 63 ms 16336 KB Output is correct
15 Correct 49 ms 16328 KB Output is correct
16 Correct 61 ms 16336 KB Output is correct
17 Correct 48 ms 16324 KB Output is correct
18 Correct 449 ms 48320 KB Output is correct
19 Correct 426 ms 48340 KB Output is correct
20 Correct 387 ms 49436 KB Output is correct
21 Correct 354 ms 48876 KB Output is correct
22 Correct 335 ms 48956 KB Output is correct

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8028 KB Output is correct
2 Correct 2 ms 8284 KB Output is correct
3 Correct 2 ms 8280 KB Output is correct
4 Correct 2 ms 8284 KB Output is correct
5 Correct 2 ms 8284 KB Output is correct
6 Correct 3 ms 8284 KB Output is correct
7 Correct 4 ms 8284 KB Output is correct
8 Correct 2 ms 8284 KB Output is correct
9 Correct 3 ms 8284 KB Output is correct
10 Correct 2 ms 8284 KB Output is correct
11 Correct 2 ms 8284 KB Output is correct
12 Correct 2 ms 8284 KB Output is correct
13 Correct 3 ms 8284 KB Output is correct
14 Correct 3 ms 8284 KB Output is correct
15 Correct 3 ms 8284 KB Output is correct
16 Correct 3 ms 8280 KB Output is correct
17 Correct 3 ms 8452 KB Output is correct
18 Correct 3 ms 8284 KB Output is correct
19 Correct 3 ms 8284 KB Output is correct
20 Correct 3 ms 8284 KB Output is correct
21 Correct 3 ms 8304 KB Output is correct
22 Correct 68 ms 11600 KB Output is correct
23 Correct 64 ms 11552 KB Output is correct
24 Correct 108 ms 17236 KB Output is correct
25 Correct 81 ms 17236 KB Output is correct
26 Correct 104 ms 18756 KB Output is correct
27 Correct 75 ms 18768 KB Output is correct
28 Correct 55 ms 17236 KB Output is correct
29 Correct 69 ms 18540 KB Output is correct
30 Correct 79 ms 17288 KB Output is correct
31 Correct 82 ms 17364 KB Output is correct
32 Correct 83 ms 17748 KB Output is correct
33 Correct 80 ms 18004 KB Output is correct
34 Correct 84 ms 17120 KB Output is correct
35 Correct 74 ms 16976 KB Output is correct
36 Correct 83 ms 17232 KB Output is correct
37 Correct 70 ms 16320 KB Output is correct
38 Correct 67 ms 16332 KB Output is correct
39 Correct 59 ms 16448 KB Output is correct
40 Correct 47 ms 16332 KB Output is correct
41 Correct 48 ms 16508 KB Output is correct
42 Correct 49 ms 16328 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 8028 KB Output is correct
2 Correct 2 ms 8284 KB Output is correct
3 Correct 2 ms 8280 KB Output is correct
4 Correct 2 ms 8284 KB Output is correct
5 Correct 2 ms 8284 KB Output is correct
6 Correct 3 ms 8284 KB Output is correct
7 Correct 4 ms 8284 KB Output is correct
8 Correct 2 ms 8284 KB Output is correct
9 Correct 3 ms 8284 KB Output is correct
10 Correct 2 ms 8284 KB Output is correct
11 Correct 2 ms 8284 KB Output is correct
12 Correct 2 ms 8284 KB Output is correct
13 Correct 3 ms 8284 KB Output is correct
14 Correct 3 ms 8284 KB Output is correct
15 Correct 3 ms 8284 KB Output is correct
16 Correct 3 ms 8280 KB Output is correct
17 Correct 3 ms 8452 KB Output is correct
18 Correct 3 ms 8284 KB Output is correct
19 Correct 3 ms 8284 KB Output is correct
20 Correct 3 ms 8284 KB Output is correct
21 Correct 3 ms 8304 KB Output is correct
22 Correct 94 ms 18000 KB Output is correct
23 Correct 120 ms 18256 KB Output is correct
24 Correct 149 ms 18916 KB Output is correct
25 Correct 274 ms 21168 KB Output is correct
26 Correct 133 ms 18172 KB Output is correct
27 Correct 250 ms 21420 KB Output is correct
28 Correct 237 ms 21160 KB Output is correct
29 Correct 102 ms 18308 KB Output is correct
30 Correct 104 ms 16216 KB Output is correct
31 Correct 112 ms 16508 KB Output is correct
32 Correct 213 ms 19568 KB Output is correct
33 Correct 103 ms 16308 KB Output is correct
34 Correct 3 ms 8024 KB Output is correct
35 Correct 3 ms 8284 KB Output is correct
36 Correct 2 ms 8280 KB Output is correct
37 Correct 2 ms 8280 KB Output is correct
38 Correct 3 ms 8284 KB Output is correct
39 Correct 4 ms 8284 KB Output is correct
40 Correct 4 ms 8284 KB Output is correct
41 Correct 111 ms 16196 KB Output is correct
42 Correct 133 ms 16576 KB Output is correct
43 Correct 255 ms 19360 KB Output is correct
44 Correct 101 ms 16312 KB Output is correct
45 Correct 68 ms 16356 KB Output is correct
46 Correct 68 ms 16320 KB Output is correct
47 Correct 63 ms 16336 KB Output is correct
48 Correct 49 ms 16328 KB Output is correct
49 Correct 61 ms 16336 KB Output is correct
50 Correct 48 ms 16324 KB Output is correct
51 Correct 449 ms 48320 KB Output is correct
52 Correct 426 ms 48340 KB Output is correct
53 Correct 387 ms 49436 KB Output is correct
54 Correct 354 ms 48876 KB Output is correct
55 Correct 335 ms 48956 KB Output is correct
56 Correct 68 ms 11600 KB Output is correct
57 Correct 64 ms 11552 KB Output is correct
58 Correct 108 ms 17236 KB Output is correct
59 Correct 81 ms 17236 KB Output is correct
60 Correct 104 ms 18756 KB Output is correct
61 Correct 75 ms 18768 KB Output is correct
62 Correct 55 ms 17236 KB Output is correct
63 Correct 69 ms 18540 KB Output is correct
64 Correct 79 ms 17288 KB Output is correct
65 Correct 82 ms 17364 KB Output is correct
66 Correct 83 ms 17748 KB Output is correct
67 Correct 80 ms 18004 KB Output is correct
68 Correct 84 ms 17120 KB Output is correct
69 Correct 74 ms 16976 KB Output is correct
70 Correct 83 ms 17232 KB Output is correct
71 Correct 70 ms 16320 KB Output is correct
72 Correct 67 ms 16332 KB Output is correct
73 Correct 59 ms 16448 KB Output is correct
74 Correct 47 ms 16332 KB Output is correct
75 Correct 48 ms 16508 KB Output is correct
76 Correct 49 ms 16328 KB Output is correct
77 Correct 624 ms 61132 KB Output is correct
78 Correct 579 ms 61012 KB Output is correct
79 Correct 645 ms 68648 KB Output is correct
80 Correct 621 ms 68636 KB Output is correct
81 Correct 574 ms 66816 KB Output is correct
82 Correct 513 ms 67840 KB Output is correct
83 Correct 635 ms 61160 KB Output is correct
84 Correct 665 ms 61048 KB Output is correct
85 Correct 607 ms 62032 KB Output is correct
86 Correct 486 ms 57684 KB Output is correct
87 Correct 463 ms 57552 KB Output is correct
88 Correct 523 ms 65360 KB Output is correct