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Submission #956139

# Submission time Handle Problem Language Result Execution time Memory
956139 2024-04-01T07:30:07 Z AlphaMale06 Curtains (NOI23_curtains) C++17
100 / 100
 1055 ms 68696 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
#define yes cout << "YES\n"
#define no cout << "NO\n"
#define F first
#define S second
#define pb push_back
#define mp make_pair
#define all(x) (x).begin(), (x).end()
#define int long long

struct query{
	int l, r, ind;
	string ans;
};

const int N = 5e5+3;
pair<int, int> lr[N];
int st[4*N], lz[4*N];
query qs[N];

void push(int v){
	int lc = 2*v+1;
	int rc = 2*v+2;
	st[lc]=max(st[lc], lz[v]);
	st[rc]=max(st[rc], lz[v]);
	lz[lc]=max(lz[lc], lz[v]);
	lz[rc]=max(lz[rc], lz[v]);
	st[v]=min(st[lc], st[rc]);
}

void Update(int v, int l, int r, int L, int R, int val){
	if(l>r || l>R || r<L)return;
	if(l>=L && r<=R){
		st[v]=max(st[v], val);
		lz[v]=max(lz[v], val);
		return;
	}
	push(v);
	int mid = l+r>>1;
	Update(2*v+1, l, mid, L, R, val);
	Update(2*v+2, mid+1, r, L, R, val);
	st[v]=min(st[2*v+1], st[2*v+2]);
}

int Get(int v, int l, int r, int L, int R){
	if(l>r || l>R || r<L)return 1e9;
	if(l>=L && r<=R)return st[v];
	push(v);
	int mid = l+r>>1;
	return min(Get(2*v+1, l, mid, L, R), Get(2*v+2, mid+1, r, L, R));
}

bool cmp1(query A, query B){
	return A.r<B.r;
}
bool cmp2(query A, query B){
	return A.ind < B.ind;
}

void solve(){
	int n, m, q;
	cin >> n >> m >> q;
	for(int i=0; i< m; i++){
		cin >> lr[i].S >> lr[i].F;
	}
	sort(lr, lr+m);
	for(int i=0; i< m; i++){
		swap(lr[i].F, lr[i].S);
	}
	for(int i=0; i< q; i++){
		cin >> qs[i].l >> qs[i].r;
		qs[i].ind=i;
	}
	sort(qs, qs+q, cmp1);
	int p=0;
	for(int i=0; i< q; i++){
		while(p<m && lr[p].S<=qs[i].r){
			Update(0, 1, n, lr[p].F, lr[p].S, lr[p].F);
			p++;
		}
		if(Get(0, 1, n, qs[i].l, qs[i].r)>=qs[i].l)qs[i].ans="YES";
		else qs[i].ans="NO";
	}
	sort(qs, qs+q, cmp2);
	for(int i=0; i< q; i++){
		cout << qs[i].ans << '\n';
	}
}


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

Compilation message

curtains.cpp: In function 'void Update(long long int, long long int, long long int, long long int, long long int, long long int)':
curtains.cpp:42:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   42 |  int mid = l+r>>1;
      |            ~^~
curtains.cpp: In function 'long long int Get(long long int, long long int, long long int, long long int, long long int)':
curtains.cpp:52:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   52 |  int mid = l+r>>1;
      |            ~^~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 31324 KB Output is correct
2 Correct 7 ms 31324 KB Output is correct
3 Correct 7 ms 31348 KB Output is correct
4 Correct 7 ms 31320 KB Output is correct
5 Correct 8 ms 31324 KB Output is correct
6 Correct 8 ms 31340 KB Output is correct
7 Correct 6 ms 31324 KB Output is correct
8 Correct 7 ms 31364 KB Output is correct
9 Correct 6 ms 31324 KB Output is correct
10 Correct 6 ms 31404 KB Output is correct
11 Correct 6 ms 31324 KB Output is correct
12 Correct 6 ms 31324 KB Output is correct

Subtask #2
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 31324 KB Output is correct
2 Correct 7 ms 31324 KB Output is correct
3 Correct 7 ms 31348 KB Output is correct
4 Correct 7 ms 31320 KB Output is correct
5 Correct 8 ms 31324 KB Output is correct
6 Correct 8 ms 31340 KB Output is correct
7 Correct 6 ms 31324 KB Output is correct
8 Correct 7 ms 31364 KB Output is correct
9 Correct 6 ms 31324 KB Output is correct
10 Correct 6 ms 31404 KB Output is correct
11 Correct 6 ms 31324 KB Output is correct
12 Correct 6 ms 31324 KB Output is correct
13 Correct 9 ms 31324 KB Output is correct
14 Correct 9 ms 31448 KB Output is correct
15 Correct 9 ms 31324 KB Output is correct
16 Correct 9 ms 31320 KB Output is correct
17 Correct 8 ms 31576 KB Output is correct
18 Correct 9 ms 31336 KB Output is correct
19 Correct 9 ms 31324 KB Output is correct
20 Correct 8 ms 31324 KB Output is correct
21 Correct 10 ms 31324 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 31324 KB Output is correct
2 Correct 7 ms 31324 KB Output is correct
3 Correct 7 ms 31348 KB Output is correct
4 Correct 7 ms 31320 KB Output is correct
5 Correct 8 ms 31324 KB Output is correct
6 Correct 8 ms 31340 KB Output is correct
7 Correct 6 ms 31324 KB Output is correct
8 Correct 7 ms 31364 KB Output is correct
9 Correct 6 ms 31324 KB Output is correct
10 Correct 6 ms 31404 KB Output is correct
11 Correct 6 ms 31324 KB Output is correct
12 Correct 6 ms 31324 KB Output is correct
13 Correct 9 ms 31324 KB Output is correct
14 Correct 9 ms 31448 KB Output is correct
15 Correct 9 ms 31324 KB Output is correct
16 Correct 9 ms 31320 KB Output is correct
17 Correct 8 ms 31576 KB Output is correct
18 Correct 9 ms 31336 KB Output is correct
19 Correct 9 ms 31324 KB Output is correct
20 Correct 8 ms 31324 KB Output is correct
21 Correct 10 ms 31324 KB Output is correct
22 Correct 511 ms 37324 KB Output is correct
23 Correct 518 ms 37868 KB Output is correct
24 Correct 561 ms 40528 KB Output is correct
25 Correct 720 ms 48908 KB Output is correct
26 Correct 520 ms 37448 KB Output is correct
27 Correct 713 ms 48756 KB Output is correct
28 Correct 719 ms 48908 KB Output is correct
29 Correct 505 ms 37372 KB Output is correct
30 Correct 465 ms 36756 KB Output is correct
31 Correct 467 ms 36944 KB Output is correct
32 Correct 659 ms 47784 KB Output is correct
33 Correct 455 ms 36452 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 31320 KB Output is correct
2 Correct 7 ms 31324 KB Output is correct
3 Correct 6 ms 31324 KB Output is correct
4 Correct 7 ms 31324 KB Output is correct
5 Correct 9 ms 31324 KB Output is correct
6 Correct 8 ms 31324 KB Output is correct
7 Correct 8 ms 31488 KB Output is correct
8 Correct 463 ms 36440 KB Output is correct
9 Correct 476 ms 36804 KB Output is correct
10 Correct 657 ms 47700 KB Output is correct
11 Correct 456 ms 36672 KB Output is correct
12 Correct 166 ms 38484 KB Output is correct
13 Correct 160 ms 38232 KB Output is correct
14 Correct 140 ms 38224 KB Output is correct
15 Correct 144 ms 38180 KB Output is correct
16 Correct 140 ms 38096 KB Output is correct
17 Correct 142 ms 38204 KB Output is correct
18 Correct 897 ms 65716 KB Output is correct
19 Correct 902 ms 66000 KB Output is correct
20 Correct 751 ms 65364 KB Output is correct
21 Correct 755 ms 65556 KB Output is correct
22 Correct 750 ms 65552 KB Output is correct

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 31324 KB Output is correct
2 Correct 7 ms 31324 KB Output is correct
3 Correct 7 ms 31348 KB Output is correct
4 Correct 7 ms 31320 KB Output is correct
5 Correct 8 ms 31324 KB Output is correct
6 Correct 8 ms 31340 KB Output is correct
7 Correct 6 ms 31324 KB Output is correct
8 Correct 7 ms 31364 KB Output is correct
9 Correct 6 ms 31324 KB Output is correct
10 Correct 6 ms 31404 KB Output is correct
11 Correct 6 ms 31324 KB Output is correct
12 Correct 6 ms 31324 KB Output is correct
13 Correct 9 ms 31324 KB Output is correct
14 Correct 9 ms 31448 KB Output is correct
15 Correct 9 ms 31324 KB Output is correct
16 Correct 9 ms 31320 KB Output is correct
17 Correct 8 ms 31576 KB Output is correct
18 Correct 9 ms 31336 KB Output is correct
19 Correct 9 ms 31324 KB Output is correct
20 Correct 8 ms 31324 KB Output is correct
21 Correct 10 ms 31324 KB Output is correct
22 Correct 162 ms 35920 KB Output is correct
23 Correct 155 ms 35984 KB Output is correct
24 Correct 182 ms 38484 KB Output is correct
25 Correct 187 ms 38552 KB Output is correct
26 Correct 158 ms 38744 KB Output is correct
27 Correct 160 ms 38736 KB Output is correct
28 Correct 141 ms 35820 KB Output is correct
29 Correct 160 ms 38480 KB Output is correct
30 Correct 184 ms 38664 KB Output is correct
31 Correct 180 ms 38620 KB Output is correct
32 Correct 172 ms 38484 KB Output is correct
33 Correct 161 ms 38712 KB Output is correct
34 Correct 177 ms 38484 KB Output is correct
35 Correct 173 ms 38484 KB Output is correct
36 Correct 172 ms 38488 KB Output is correct
37 Correct 158 ms 38240 KB Output is correct
38 Correct 166 ms 38480 KB Output is correct
39 Correct 139 ms 38188 KB Output is correct
40 Correct 141 ms 38228 KB Output is correct
41 Correct 138 ms 38164 KB Output is correct
42 Correct 142 ms 38228 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 31324 KB Output is correct
2 Correct 7 ms 31324 KB Output is correct
3 Correct 7 ms 31348 KB Output is correct
4 Correct 7 ms 31320 KB Output is correct
5 Correct 8 ms 31324 KB Output is correct
6 Correct 8 ms 31340 KB Output is correct
7 Correct 6 ms 31324 KB Output is correct
8 Correct 7 ms 31364 KB Output is correct
9 Correct 6 ms 31324 KB Output is correct
10 Correct 6 ms 31404 KB Output is correct
11 Correct 6 ms 31324 KB Output is correct
12 Correct 6 ms 31324 KB Output is correct
13 Correct 9 ms 31324 KB Output is correct
14 Correct 9 ms 31448 KB Output is correct
15 Correct 9 ms 31324 KB Output is correct
16 Correct 9 ms 31320 KB Output is correct
17 Correct 8 ms 31576 KB Output is correct
18 Correct 9 ms 31336 KB Output is correct
19 Correct 9 ms 31324 KB Output is correct
20 Correct 8 ms 31324 KB Output is correct
21 Correct 10 ms 31324 KB Output is correct
22 Correct 511 ms 37324 KB Output is correct
23 Correct 518 ms 37868 KB Output is correct
24 Correct 561 ms 40528 KB Output is correct
25 Correct 720 ms 48908 KB Output is correct
26 Correct 520 ms 37448 KB Output is correct
27 Correct 713 ms 48756 KB Output is correct
28 Correct 719 ms 48908 KB Output is correct
29 Correct 505 ms 37372 KB Output is correct
30 Correct 465 ms 36756 KB Output is correct
31 Correct 467 ms 36944 KB Output is correct
32 Correct 659 ms 47784 KB Output is correct
33 Correct 455 ms 36452 KB Output is correct
34 Correct 6 ms 31320 KB Output is correct
35 Correct 7 ms 31324 KB Output is correct
36 Correct 6 ms 31324 KB Output is correct
37 Correct 7 ms 31324 KB Output is correct
38 Correct 9 ms 31324 KB Output is correct
39 Correct 8 ms 31324 KB Output is correct
40 Correct 8 ms 31488 KB Output is correct
41 Correct 463 ms 36440 KB Output is correct
42 Correct 476 ms 36804 KB Output is correct
43 Correct 657 ms 47700 KB Output is correct
44 Correct 456 ms 36672 KB Output is correct
45 Correct 166 ms 38484 KB Output is correct
46 Correct 160 ms 38232 KB Output is correct
47 Correct 140 ms 38224 KB Output is correct
48 Correct 144 ms 38180 KB Output is correct
49 Correct 140 ms 38096 KB Output is correct
50 Correct 142 ms 38204 KB Output is correct
51 Correct 897 ms 65716 KB Output is correct
52 Correct 902 ms 66000 KB Output is correct
53 Correct 751 ms 65364 KB Output is correct
54 Correct 755 ms 65556 KB Output is correct
55 Correct 750 ms 65552 KB Output is correct
56 Correct 162 ms 35920 KB Output is correct
57 Correct 155 ms 35984 KB Output is correct
58 Correct 182 ms 38484 KB Output is correct
59 Correct 187 ms 38552 KB Output is correct
60 Correct 158 ms 38744 KB Output is correct
61 Correct 160 ms 38736 KB Output is correct
62 Correct 141 ms 35820 KB Output is correct
63 Correct 160 ms 38480 KB Output is correct
64 Correct 184 ms 38664 KB Output is correct
65 Correct 180 ms 38620 KB Output is correct
66 Correct 172 ms 38484 KB Output is correct
67 Correct 161 ms 38712 KB Output is correct
68 Correct 177 ms 38484 KB Output is correct
69 Correct 173 ms 38484 KB Output is correct
70 Correct 172 ms 38488 KB Output is correct
71 Correct 158 ms 38240 KB Output is correct
72 Correct 166 ms 38480 KB Output is correct
73 Correct 139 ms 38188 KB Output is correct
74 Correct 141 ms 38228 KB Output is correct
75 Correct 138 ms 38164 KB Output is correct
76 Correct 142 ms 38228 KB Output is correct
77 Correct 1041 ms 67968 KB Output is correct
78 Correct 1032 ms 67844 KB Output is correct
79 Correct 881 ms 68696 KB Output is correct
80 Correct 886 ms 68432 KB Output is correct
81 Correct 870 ms 67156 KB Output is correct
82 Correct 880 ms 67676 KB Output is correct
83 Correct 1051 ms 68180 KB Output is correct
84 Correct 1055 ms 68068 KB Output is correct
85 Correct 966 ms 67876 KB Output is correct
86 Correct 973 ms 67984 KB Output is correct
87 Correct 990 ms 67152 KB Output is correct
88 Correct 906 ms 67904 KB Output is correct