답안 #641601

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
641601	2022-09-17T09:00:25 Z	andreast12	Bigger segments (IZhO19_segments)	C++17	100 / 100	149 ms	19264 KB

segments

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define fi first
#define se second
#define pb push_back
const int mod=998244353, maxn=5e5+5;
int n, a, dp[maxn], prv;
ll pf[maxn], tree[4*maxn], inf=1e18;

void build(int now, int tl, int tr) {
	if(tl==tr) {
		tree[now]=(tl)?inf:0;
		return;
	}
	int mid=(tl+tr)/2;
	build(now*2, tl, mid);
	build(now*2+1, mid+1, tr);
	tree[now]=min(tree[now*2], tree[now*2+1]);
}

int query(int now, int tl, int tr, ll val) {
	if(tl==tr) return tl;
	int mid=(tl+tr)/2;
	if(tree[now*2+1]<=val) return query(now*2+1, mid+1, tr, val);
	return query(now*2, tl, mid, val);
}

void update(int now, int tl, int tr, int pos, ll val) {
	if(tl==tr) {
		tree[now]=val;
		return;
	}
	int mid=(tl+tr)/2;
	if(pos<=mid) update(now*2, tl, mid, pos, val);
	else update(now*2+1, mid+1, tr, pos, val);
	tree[now]=min(tree[now*2], tree[now*2+1]);
}

int main() {
	ios_base::sync_with_stdio(false); cin.tie(NULL);
	cin >> n;
	build(1, 0, n);
	for(int i=1; i<=n; i++) {
		cin >> a;
		pf[i]=pf[i-1]+a;
		prv=query(1, 0, n, pf[i]);
		dp[i]=dp[prv]+1;
		// cout << i << ": " << prv << ' ' << dp[i] << '\n';
		update(1, 0, n, i, pf[i]*2-pf[prv]);
	}
	cout << dp[n] << '\n';
}

Subtask #1
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	0 ms	340 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	0 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	324 KB	Output is correct
10	Correct	0 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct

Subtask #2
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	0 ms	340 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	0 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	324 KB	Output is correct
10	Correct	0 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	0 ms	340 KB	Output is correct
21	Correct	0 ms	340 KB	Output is correct
22	Correct	1 ms	328 KB	Output is correct
23	Correct	1 ms	328 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	328 KB	Output is correct
28	Correct	0 ms	340 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Correct	1 ms	340 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	0 ms	340 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	0 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	324 KB	Output is correct
10	Correct	0 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	0 ms	340 KB	Output is correct
21	Correct	0 ms	340 KB	Output is correct
22	Correct	1 ms	328 KB	Output is correct
23	Correct	1 ms	328 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	328 KB	Output is correct
28	Correct	0 ms	340 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Correct	1 ms	340 KB	Output is correct
31	Correct	1 ms	340 KB	Output is correct
32	Correct	2 ms	468 KB	Output is correct
33	Correct	2 ms	468 KB	Output is correct
34	Correct	1 ms	340 KB	Output is correct
35	Correct	2 ms	468 KB	Output is correct
36	Correct	1 ms	468 KB	Output is correct
37	Correct	1 ms	340 KB	Output is correct
38	Correct	1 ms	340 KB	Output is correct
39	Correct	1 ms	340 KB	Output is correct
40	Correct	1 ms	468 KB	Output is correct
41	Correct	1 ms	332 KB	Output is correct
42	Correct	1 ms	340 KB	Output is correct
43	Correct	1 ms	332 KB	Output is correct
44	Correct	1 ms	340 KB	Output is correct
45	Correct	1 ms	340 KB	Output is correct

Subtask #4
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	0 ms	340 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	0 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	324 KB	Output is correct
10	Correct	0 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	0 ms	340 KB	Output is correct
21	Correct	0 ms	340 KB	Output is correct
22	Correct	1 ms	328 KB	Output is correct
23	Correct	1 ms	328 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	328 KB	Output is correct
28	Correct	0 ms	340 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Correct	1 ms	340 KB	Output is correct
31	Correct	1 ms	340 KB	Output is correct
32	Correct	2 ms	468 KB	Output is correct
33	Correct	2 ms	468 KB	Output is correct
34	Correct	1 ms	340 KB	Output is correct
35	Correct	2 ms	468 KB	Output is correct
36	Correct	1 ms	468 KB	Output is correct
37	Correct	1 ms	340 KB	Output is correct
38	Correct	1 ms	340 KB	Output is correct
39	Correct	1 ms	340 KB	Output is correct
40	Correct	1 ms	468 KB	Output is correct
41	Correct	1 ms	332 KB	Output is correct
42	Correct	1 ms	340 KB	Output is correct
43	Correct	1 ms	332 KB	Output is correct
44	Correct	1 ms	340 KB	Output is correct
45	Correct	1 ms	340 KB	Output is correct
46	Correct	21 ms	3908 KB	Output is correct
47	Correct	25 ms	3928 KB	Output is correct
48	Correct	25 ms	4292 KB	Output is correct
49	Correct	26 ms	4444 KB	Output is correct
50	Correct	28 ms	4480 KB	Output is correct
51	Correct	28 ms	4428 KB	Output is correct
52	Correct	17 ms	2404 KB	Output is correct
53	Correct	11 ms	1492 KB	Output is correct
54	Correct	23 ms	3776 KB	Output is correct
55	Correct	28 ms	4452 KB	Output is correct
56	Correct	25 ms	3944 KB	Output is correct
57	Correct	24 ms	3916 KB	Output is correct
58	Correct	23 ms	3932 KB	Output is correct
59	Correct	25 ms	4132 KB	Output is correct
60	Correct	25 ms	4108 KB	Output is correct

Subtask #5
27.0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	0 ms	340 KB	Output is correct
3	Correct	0 ms	340 KB	Output is correct
4	Correct	0 ms	340 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	0 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	324 KB	Output is correct
10	Correct	0 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	212 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	0 ms	340 KB	Output is correct
21	Correct	0 ms	340 KB	Output is correct
22	Correct	1 ms	328 KB	Output is correct
23	Correct	1 ms	328 KB	Output is correct
24	Correct	1 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	328 KB	Output is correct
28	Correct	0 ms	340 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Correct	1 ms	340 KB	Output is correct
31	Correct	1 ms	340 KB	Output is correct
32	Correct	2 ms	468 KB	Output is correct
33	Correct	2 ms	468 KB	Output is correct
34	Correct	1 ms	340 KB	Output is correct
35	Correct	2 ms	468 KB	Output is correct
36	Correct	1 ms	468 KB	Output is correct
37	Correct	1 ms	340 KB	Output is correct
38	Correct	1 ms	340 KB	Output is correct
39	Correct	1 ms	340 KB	Output is correct
40	Correct	1 ms	468 KB	Output is correct
41	Correct	1 ms	332 KB	Output is correct
42	Correct	1 ms	340 KB	Output is correct
43	Correct	1 ms	332 KB	Output is correct
44	Correct	1 ms	340 KB	Output is correct
45	Correct	1 ms	340 KB	Output is correct
46	Correct	21 ms	3908 KB	Output is correct
47	Correct	25 ms	3928 KB	Output is correct
48	Correct	25 ms	4292 KB	Output is correct
49	Correct	26 ms	4444 KB	Output is correct
50	Correct	28 ms	4480 KB	Output is correct
51	Correct	28 ms	4428 KB	Output is correct
52	Correct	17 ms	2404 KB	Output is correct
53	Correct	11 ms	1492 KB	Output is correct
54	Correct	23 ms	3776 KB	Output is correct
55	Correct	28 ms	4452 KB	Output is correct
56	Correct	25 ms	3944 KB	Output is correct
57	Correct	24 ms	3916 KB	Output is correct
58	Correct	23 ms	3932 KB	Output is correct
59	Correct	25 ms	4132 KB	Output is correct
60	Correct	25 ms	4108 KB	Output is correct
61	Correct	112 ms	16252 KB	Output is correct
62	Correct	116 ms	16296 KB	Output is correct
63	Correct	121 ms	16720 KB	Output is correct
64	Correct	144 ms	18936 KB	Output is correct
65	Correct	146 ms	19264 KB	Output is correct
66	Correct	149 ms	19176 KB	Output is correct
67	Correct	116 ms	16972 KB	Output is correct
68	Correct	54 ms	8692 KB	Output is correct
69	Correct	120 ms	15396 KB	Output is correct
70	Correct	141 ms	19200 KB	Output is correct
71	Correct	131 ms	16340 KB	Output is correct
72	Correct	122 ms	16692 KB	Output is correct
73	Correct	126 ms	17308 KB	Output is correct
74	Correct	131 ms	17664 KB	Output is correct
75	Correct	131 ms	17608 KB	Output is correct

답안 #641601

Compilation message

Subtask #1 13.0 / 13.0

Subtask #2 14.0 / 14.0

Subtask #3 10.0 / 10.0

Subtask #4 36.0 / 36.0

Subtask #5 27.0 / 27.0

Subtask #1
13.0 / 13.0

Subtask #2
14.0 / 14.0

Subtask #3
10.0 / 10.0

Subtask #4
36.0 / 36.0

Subtask #5
27.0 / 27.0