답안 #1024067

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1024067	2024-07-15T10:56:19 Z	yellowtoad	Bigger segments (IZhO19_segments)	C++17	100 / 100	230 ms	28588 KB

segments

#include <iostream>
using namespace std;

long long n, a[500010], sum, dp[500010], p[500010], cnt, pos, node[2000010], ps[500010];
bool done;

void update(int id, int x, int y, int pos, long long val) {
	if (x == y) {
		node[id] = val;
		return;
	}
	int mid = (x+y)/2;
	if (pos <= mid) update(id*2,x,mid,pos,val);
	else update(id*2+1,mid+1,y,pos,val);
	node[id] = min(node[id*2],node[id*2+1]);
}

int find(int id, int x, int y, int pos, long long val) {
	if (pos < x) return pos;
	if (node[id] > val) return pos;
	if (x == y) {
		done = 1;
		return x;
	}
	int mid = (x+y)/2, tmp = find(id*2+1,mid+1,y,pos,val);
	return (done ? tmp : find(id*2,x,mid,pos,val));
}

int main() {
	cin >> n;
	for (int i = 1; i <= n; i++) cin >> a[i];
	for (int i = n; i >= 1; i--) ps[i] = ps[i+1]+a[i];
	update(1,0,n,0,-ps[1]);
	for (int i = 1; i <= n; i++) {
		done = 0;
		p[i] = find(1,0,n,i-1,-ps[i+1]);
		update(1,0,n,i,ps[p[i]+1]-ps[i+1]-ps[i+1]);
	}
	pos = n;
	while (pos > 0) {
		pos = p[pos];
		cnt++;
	}
	cout << cnt << endl;
}

Subtask #1
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	6492 KB	Output is correct
2	Correct	1 ms	6492 KB	Output is correct
3	Correct	1 ms	6492 KB	Output is correct
4	Correct	1 ms	6492 KB	Output is correct
5	Correct	1 ms	6492 KB	Output is correct
6	Correct	1 ms	6488 KB	Output is correct
7	Correct	1 ms	6492 KB	Output is correct
8	Correct	1 ms	6492 KB	Output is correct
9	Correct	1 ms	6492 KB	Output is correct
10	Correct	1 ms	6492 KB	Output is correct
11	Correct	1 ms	6492 KB	Output is correct
12	Correct	1 ms	6492 KB	Output is correct
13	Correct	1 ms	6492 KB	Output is correct
14	Correct	1 ms	6492 KB	Output is correct
15	Correct	1 ms	6492 KB	Output is correct

Subtask #2
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	6492 KB	Output is correct
2	Correct	1 ms	6492 KB	Output is correct
3	Correct	1 ms	6492 KB	Output is correct
4	Correct	1 ms	6492 KB	Output is correct
5	Correct	1 ms	6492 KB	Output is correct
6	Correct	1 ms	6488 KB	Output is correct
7	Correct	1 ms	6492 KB	Output is correct
8	Correct	1 ms	6492 KB	Output is correct
9	Correct	1 ms	6492 KB	Output is correct
10	Correct	1 ms	6492 KB	Output is correct
11	Correct	1 ms	6492 KB	Output is correct
12	Correct	1 ms	6492 KB	Output is correct
13	Correct	1 ms	6492 KB	Output is correct
14	Correct	1 ms	6492 KB	Output is correct
15	Correct	1 ms	6492 KB	Output is correct
16	Correct	1 ms	6492 KB	Output is correct
17	Correct	1 ms	6592 KB	Output is correct
18	Correct	2 ms	6492 KB	Output is correct
19	Correct	1 ms	6600 KB	Output is correct
20	Correct	1 ms	6492 KB	Output is correct
21	Correct	1 ms	6492 KB	Output is correct
22	Correct	1 ms	6492 KB	Output is correct
23	Correct	1 ms	6492 KB	Output is correct
24	Correct	1 ms	6492 KB	Output is correct
25	Correct	1 ms	6608 KB	Output is correct
26	Correct	1 ms	6492 KB	Output is correct
27	Correct	1 ms	6492 KB	Output is correct
28	Correct	1 ms	6492 KB	Output is correct
29	Correct	2 ms	6488 KB	Output is correct
30	Correct	1 ms	6488 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	6492 KB	Output is correct
2	Correct	1 ms	6492 KB	Output is correct
3	Correct	1 ms	6492 KB	Output is correct
4	Correct	1 ms	6492 KB	Output is correct
5	Correct	1 ms	6492 KB	Output is correct
6	Correct	1 ms	6488 KB	Output is correct
7	Correct	1 ms	6492 KB	Output is correct
8	Correct	1 ms	6492 KB	Output is correct
9	Correct	1 ms	6492 KB	Output is correct
10	Correct	1 ms	6492 KB	Output is correct
11	Correct	1 ms	6492 KB	Output is correct
12	Correct	1 ms	6492 KB	Output is correct
13	Correct	1 ms	6492 KB	Output is correct
14	Correct	1 ms	6492 KB	Output is correct
15	Correct	1 ms	6492 KB	Output is correct
16	Correct	1 ms	6492 KB	Output is correct
17	Correct	1 ms	6592 KB	Output is correct
18	Correct	2 ms	6492 KB	Output is correct
19	Correct	1 ms	6600 KB	Output is correct
20	Correct	1 ms	6492 KB	Output is correct
21	Correct	1 ms	6492 KB	Output is correct
22	Correct	1 ms	6492 KB	Output is correct
23	Correct	1 ms	6492 KB	Output is correct
24	Correct	1 ms	6492 KB	Output is correct
25	Correct	1 ms	6608 KB	Output is correct
26	Correct	1 ms	6492 KB	Output is correct
27	Correct	1 ms	6492 KB	Output is correct
28	Correct	1 ms	6492 KB	Output is correct
29	Correct	2 ms	6488 KB	Output is correct
30	Correct	1 ms	6488 KB	Output is correct
31	Correct	2 ms	6492 KB	Output is correct
32	Correct	2 ms	6492 KB	Output is correct
33	Correct	2 ms	6492 KB	Output is correct
34	Correct	2 ms	6492 KB	Output is correct
35	Correct	2 ms	6492 KB	Output is correct
36	Correct	2 ms	6492 KB	Output is correct
37	Correct	3 ms	6488 KB	Output is correct
38	Correct	3 ms	6492 KB	Output is correct
39	Correct	2 ms	6492 KB	Output is correct
40	Correct	2 ms	6604 KB	Output is correct
41	Correct	2 ms	6492 KB	Output is correct
42	Correct	2 ms	6604 KB	Output is correct
43	Correct	2 ms	6492 KB	Output is correct
44	Correct	1 ms	6492 KB	Output is correct
45	Correct	1 ms	6492 KB	Output is correct

Subtask #4
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	6492 KB	Output is correct
2	Correct	1 ms	6492 KB	Output is correct
3	Correct	1 ms	6492 KB	Output is correct
4	Correct	1 ms	6492 KB	Output is correct
5	Correct	1 ms	6492 KB	Output is correct
6	Correct	1 ms	6488 KB	Output is correct
7	Correct	1 ms	6492 KB	Output is correct
8	Correct	1 ms	6492 KB	Output is correct
9	Correct	1 ms	6492 KB	Output is correct
10	Correct	1 ms	6492 KB	Output is correct
11	Correct	1 ms	6492 KB	Output is correct
12	Correct	1 ms	6492 KB	Output is correct
13	Correct	1 ms	6492 KB	Output is correct
14	Correct	1 ms	6492 KB	Output is correct
15	Correct	1 ms	6492 KB	Output is correct
16	Correct	1 ms	6492 KB	Output is correct
17	Correct	1 ms	6592 KB	Output is correct
18	Correct	2 ms	6492 KB	Output is correct
19	Correct	1 ms	6600 KB	Output is correct
20	Correct	1 ms	6492 KB	Output is correct
21	Correct	1 ms	6492 KB	Output is correct
22	Correct	1 ms	6492 KB	Output is correct
23	Correct	1 ms	6492 KB	Output is correct
24	Correct	1 ms	6492 KB	Output is correct
25	Correct	1 ms	6608 KB	Output is correct
26	Correct	1 ms	6492 KB	Output is correct
27	Correct	1 ms	6492 KB	Output is correct
28	Correct	1 ms	6492 KB	Output is correct
29	Correct	2 ms	6488 KB	Output is correct
30	Correct	1 ms	6488 KB	Output is correct
31	Correct	2 ms	6492 KB	Output is correct
32	Correct	2 ms	6492 KB	Output is correct
33	Correct	2 ms	6492 KB	Output is correct
34	Correct	2 ms	6492 KB	Output is correct
35	Correct	2 ms	6492 KB	Output is correct
36	Correct	2 ms	6492 KB	Output is correct
37	Correct	3 ms	6488 KB	Output is correct
38	Correct	3 ms	6492 KB	Output is correct
39	Correct	2 ms	6492 KB	Output is correct
40	Correct	2 ms	6604 KB	Output is correct
41	Correct	2 ms	6492 KB	Output is correct
42	Correct	2 ms	6604 KB	Output is correct
43	Correct	2 ms	6492 KB	Output is correct
44	Correct	1 ms	6492 KB	Output is correct
45	Correct	1 ms	6492 KB	Output is correct
46	Correct	30 ms	9820 KB	Output is correct
47	Correct	32 ms	9820 KB	Output is correct
48	Correct	38 ms	10064 KB	Output is correct
49	Correct	49 ms	10332 KB	Output is correct
50	Correct	58 ms	10276 KB	Output is correct
51	Correct	43 ms	10284 KB	Output is correct
52	Correct	25 ms	9308 KB	Output is correct
53	Correct	13 ms	9192 KB	Output is correct
54	Correct	26 ms	9564 KB	Output is correct
55	Correct	43 ms	10320 KB	Output is correct
56	Correct	32 ms	9816 KB	Output is correct
57	Correct	30 ms	9820 KB	Output is correct
58	Correct	36 ms	9912 KB	Output is correct
59	Correct	34 ms	9816 KB	Output is correct
60	Correct	43 ms	9976 KB	Output is correct

Subtask #5
27.0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	6492 KB	Output is correct
2	Correct	1 ms	6492 KB	Output is correct
3	Correct	1 ms	6492 KB	Output is correct
4	Correct	1 ms	6492 KB	Output is correct
5	Correct	1 ms	6492 KB	Output is correct
6	Correct	1 ms	6488 KB	Output is correct
7	Correct	1 ms	6492 KB	Output is correct
8	Correct	1 ms	6492 KB	Output is correct
9	Correct	1 ms	6492 KB	Output is correct
10	Correct	1 ms	6492 KB	Output is correct
11	Correct	1 ms	6492 KB	Output is correct
12	Correct	1 ms	6492 KB	Output is correct
13	Correct	1 ms	6492 KB	Output is correct
14	Correct	1 ms	6492 KB	Output is correct
15	Correct	1 ms	6492 KB	Output is correct
16	Correct	1 ms	6492 KB	Output is correct
17	Correct	1 ms	6592 KB	Output is correct
18	Correct	2 ms	6492 KB	Output is correct
19	Correct	1 ms	6600 KB	Output is correct
20	Correct	1 ms	6492 KB	Output is correct
21	Correct	1 ms	6492 KB	Output is correct
22	Correct	1 ms	6492 KB	Output is correct
23	Correct	1 ms	6492 KB	Output is correct
24	Correct	1 ms	6492 KB	Output is correct
25	Correct	1 ms	6608 KB	Output is correct
26	Correct	1 ms	6492 KB	Output is correct
27	Correct	1 ms	6492 KB	Output is correct
28	Correct	1 ms	6492 KB	Output is correct
29	Correct	2 ms	6488 KB	Output is correct
30	Correct	1 ms	6488 KB	Output is correct
31	Correct	2 ms	6492 KB	Output is correct
32	Correct	2 ms	6492 KB	Output is correct
33	Correct	2 ms	6492 KB	Output is correct
34	Correct	2 ms	6492 KB	Output is correct
35	Correct	2 ms	6492 KB	Output is correct
36	Correct	2 ms	6492 KB	Output is correct
37	Correct	3 ms	6488 KB	Output is correct
38	Correct	3 ms	6492 KB	Output is correct
39	Correct	2 ms	6492 KB	Output is correct
40	Correct	2 ms	6604 KB	Output is correct
41	Correct	2 ms	6492 KB	Output is correct
42	Correct	2 ms	6604 KB	Output is correct
43	Correct	2 ms	6492 KB	Output is correct
44	Correct	1 ms	6492 KB	Output is correct
45	Correct	1 ms	6492 KB	Output is correct
46	Correct	30 ms	9820 KB	Output is correct
47	Correct	32 ms	9820 KB	Output is correct
48	Correct	38 ms	10064 KB	Output is correct
49	Correct	49 ms	10332 KB	Output is correct
50	Correct	58 ms	10276 KB	Output is correct
51	Correct	43 ms	10284 KB	Output is correct
52	Correct	25 ms	9308 KB	Output is correct
53	Correct	13 ms	9192 KB	Output is correct
54	Correct	26 ms	9564 KB	Output is correct
55	Correct	43 ms	10320 KB	Output is correct
56	Correct	32 ms	9816 KB	Output is correct
57	Correct	30 ms	9820 KB	Output is correct
58	Correct	36 ms	9912 KB	Output is correct
59	Correct	34 ms	9816 KB	Output is correct
60	Correct	43 ms	9976 KB	Output is correct
61	Correct	146 ms	25384 KB	Output is correct
62	Correct	154 ms	25368 KB	Output is correct
63	Correct	167 ms	25680 KB	Output is correct
64	Correct	206 ms	27984 KB	Output is correct
65	Correct	222 ms	28588 KB	Output is correct
66	Correct	218 ms	28188 KB	Output is correct
67	Correct	187 ms	24144 KB	Output is correct
68	Correct	89 ms	18512 KB	Output is correct
69	Correct	159 ms	24404 KB	Output is correct
70	Correct	230 ms	28500 KB	Output is correct
71	Correct	162 ms	25424 KB	Output is correct
72	Correct	159 ms	25680 KB	Output is correct
73	Correct	166 ms	26448 KB	Output is correct
74	Correct	172 ms	26788 KB	Output is correct
75	Correct	178 ms	26708 KB	Output is correct

답안 #1024067

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