답안 #200536

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
200536	2020-02-07T06:28:48 Z	a1_N	Bigger segments (IZhO19_segments)	C++17	37 / 100	1500 ms	148680 KB

segments

#include <bits/stdc++.h>

#define F first
#define S second

using namespace std;

const int N = 5e5 + 5;
const long long M = (long long)1e15;

int n,a[N];

long long pref[N];

pair<long long,long long> dp[N];

unordered_map< long long,pair<long long,long long> > t;

void upd(long long pos,pair<long long,long long> val,long long v = 1,long long tl = 1,long long tr = M){
	if(tl == tr){
		t[v] = val;
		return;
	}	
	long long tm = (tl + tr) >> 1;
	if(pos <= tm) upd(pos,val,v + v,tl,tm);
	else upd(pos,val,v + v + 1,tm + 1,tr);
	t[v] = max(t[v + v],t[v + v + 1]);
}

pair<long long,long long> get(long long l,long long r,long long v = 1,long long tl = 1,long long tr = M){
	if(l <= tl && tr <= r) return t[v];
	if(tl > r || tr < l) return make_pair(0,0);
	long long tm = (tl + tr) >> 1;
	return max(get(l,r,v + v,tl,tm),get(l,r,v + v + 1,tm + 1,tr));
} 

int main(){
	ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);
	cin >> n;
	for(int i = 1; i <= n; i++){
		cin >> a[i];
		pref[i] = pref[i - 1] + a[i];
	}
	dp[1] = make_pair(1,a[1]);
	upd(pref[1] + dp[1].S,make_pair(dp[1].F,1));
	for(int i = 2; i <= n; i++){
		dp[i] = {dp[i - 1].F,dp[i - 1].S + a[i]};
		pair<long long,long long> cur = get(1,pref[i]);
		if(cur.F > 0) dp[i] = {cur.F + 1,pref[i] - pref[cur.S]};
		upd(pref[i] + dp[i].S,make_pair(dp[i].F,i));	
	}
	cout << dp[n].F;
	return 0;
}

Subtask #1
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	376 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	5 ms	376 KB	Output is correct
6	Correct	5 ms	376 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct
8	Correct	5 ms	376 KB	Output is correct
9	Correct	5 ms	376 KB	Output is correct
10	Correct	5 ms	376 KB	Output is correct
11	Correct	5 ms	376 KB	Output is correct
12	Correct	5 ms	376 KB	Output is correct
13	Correct	5 ms	380 KB	Output is correct
14	Correct	5 ms	376 KB	Output is correct
15	Correct	5 ms	376 KB	Output is correct

Subtask #2
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	376 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	5 ms	376 KB	Output is correct
6	Correct	5 ms	376 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct
8	Correct	5 ms	376 KB	Output is correct
9	Correct	5 ms	376 KB	Output is correct
10	Correct	5 ms	376 KB	Output is correct
11	Correct	5 ms	376 KB	Output is correct
12	Correct	5 ms	376 KB	Output is correct
13	Correct	5 ms	380 KB	Output is correct
14	Correct	5 ms	376 KB	Output is correct
15	Correct	5 ms	376 KB	Output is correct
16	Correct	15 ms	1400 KB	Output is correct
17	Correct	11 ms	2168 KB	Output is correct
18	Correct	12 ms	2348 KB	Output is correct
19	Correct	11 ms	2296 KB	Output is correct
20	Correct	11 ms	2296 KB	Output is correct
21	Correct	11 ms	2472 KB	Output is correct
22	Correct	11 ms	2296 KB	Output is correct
23	Correct	8 ms	1656 KB	Output is correct
24	Correct	7 ms	632 KB	Output is correct
25	Correct	11 ms	2344 KB	Output is correct
26	Correct	7 ms	504 KB	Output is correct
27	Correct	6 ms	632 KB	Output is correct
28	Correct	7 ms	504 KB	Output is correct
29	Correct	8 ms	888 KB	Output is correct
30	Correct	8 ms	892 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	376 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	5 ms	376 KB	Output is correct
6	Correct	5 ms	376 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct
8	Correct	5 ms	376 KB	Output is correct
9	Correct	5 ms	376 KB	Output is correct
10	Correct	5 ms	376 KB	Output is correct
11	Correct	5 ms	376 KB	Output is correct
12	Correct	5 ms	376 KB	Output is correct
13	Correct	5 ms	380 KB	Output is correct
14	Correct	5 ms	376 KB	Output is correct
15	Correct	5 ms	376 KB	Output is correct
16	Correct	15 ms	1400 KB	Output is correct
17	Correct	11 ms	2168 KB	Output is correct
18	Correct	12 ms	2348 KB	Output is correct
19	Correct	11 ms	2296 KB	Output is correct
20	Correct	11 ms	2296 KB	Output is correct
21	Correct	11 ms	2472 KB	Output is correct
22	Correct	11 ms	2296 KB	Output is correct
23	Correct	8 ms	1656 KB	Output is correct
24	Correct	7 ms	632 KB	Output is correct
25	Correct	11 ms	2344 KB	Output is correct
26	Correct	7 ms	504 KB	Output is correct
27	Correct	6 ms	632 KB	Output is correct
28	Correct	7 ms	504 KB	Output is correct
29	Correct	8 ms	888 KB	Output is correct
30	Correct	8 ms	892 KB	Output is correct
31	Correct	44 ms	8068 KB	Output is correct
32	Correct	57 ms	9020 KB	Output is correct
33	Correct	56 ms	10424 KB	Output is correct
34	Correct	47 ms	9276 KB	Output is correct
35	Correct	53 ms	10428 KB	Output is correct
36	Correct	69 ms	12348 KB	Output is correct
37	Correct	57 ms	10552 KB	Output is correct
38	Correct	46 ms	8888 KB	Output is correct
39	Correct	17 ms	1528 KB	Output is correct
40	Correct	59 ms	11068 KB	Output is correct
41	Correct	15 ms	1528 KB	Output is correct
42	Correct	21 ms	3112 KB	Output is correct
43	Correct	18 ms	1400 KB	Output is correct
44	Correct	27 ms	4488 KB	Output is correct
45	Correct	28 ms	4616 KB	Output is correct

Subtask #4
0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	376 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	5 ms	376 KB	Output is correct
6	Correct	5 ms	376 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct
8	Correct	5 ms	376 KB	Output is correct
9	Correct	5 ms	376 KB	Output is correct
10	Correct	5 ms	376 KB	Output is correct
11	Correct	5 ms	376 KB	Output is correct
12	Correct	5 ms	376 KB	Output is correct
13	Correct	5 ms	380 KB	Output is correct
14	Correct	5 ms	376 KB	Output is correct
15	Correct	5 ms	376 KB	Output is correct
16	Correct	15 ms	1400 KB	Output is correct
17	Correct	11 ms	2168 KB	Output is correct
18	Correct	12 ms	2348 KB	Output is correct
19	Correct	11 ms	2296 KB	Output is correct
20	Correct	11 ms	2296 KB	Output is correct
21	Correct	11 ms	2472 KB	Output is correct
22	Correct	11 ms	2296 KB	Output is correct
23	Correct	8 ms	1656 KB	Output is correct
24	Correct	7 ms	632 KB	Output is correct
25	Correct	11 ms	2344 KB	Output is correct
26	Correct	7 ms	504 KB	Output is correct
27	Correct	6 ms	632 KB	Output is correct
28	Correct	7 ms	504 KB	Output is correct
29	Correct	8 ms	888 KB	Output is correct
30	Correct	8 ms	892 KB	Output is correct
31	Correct	44 ms	8068 KB	Output is correct
32	Correct	57 ms	9020 KB	Output is correct
33	Correct	56 ms	10424 KB	Output is correct
34	Correct	47 ms	9276 KB	Output is correct
35	Correct	53 ms	10428 KB	Output is correct
36	Correct	69 ms	12348 KB	Output is correct
37	Correct	57 ms	10552 KB	Output is correct
38	Correct	46 ms	8888 KB	Output is correct
39	Correct	17 ms	1528 KB	Output is correct
40	Correct	59 ms	11068 KB	Output is correct
41	Correct	15 ms	1528 KB	Output is correct
42	Correct	21 ms	3112 KB	Output is correct
43	Correct	18 ms	1400 KB	Output is correct
44	Correct	27 ms	4488 KB	Output is correct
45	Correct	28 ms	4616 KB	Output is correct
46	Execution timed out	1550 ms	148680 KB	Time limit exceeded
47	Halted	0 ms	0 KB	-

Subtask #5
0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	376 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	5 ms	376 KB	Output is correct
6	Correct	5 ms	376 KB	Output is correct
7	Correct	5 ms	376 KB	Output is correct
8	Correct	5 ms	376 KB	Output is correct
9	Correct	5 ms	376 KB	Output is correct
10	Correct	5 ms	376 KB	Output is correct
11	Correct	5 ms	376 KB	Output is correct
12	Correct	5 ms	376 KB	Output is correct
13	Correct	5 ms	380 KB	Output is correct
14	Correct	5 ms	376 KB	Output is correct
15	Correct	5 ms	376 KB	Output is correct
16	Correct	15 ms	1400 KB	Output is correct
17	Correct	11 ms	2168 KB	Output is correct
18	Correct	12 ms	2348 KB	Output is correct
19	Correct	11 ms	2296 KB	Output is correct
20	Correct	11 ms	2296 KB	Output is correct
21	Correct	11 ms	2472 KB	Output is correct
22	Correct	11 ms	2296 KB	Output is correct
23	Correct	8 ms	1656 KB	Output is correct
24	Correct	7 ms	632 KB	Output is correct
25	Correct	11 ms	2344 KB	Output is correct
26	Correct	7 ms	504 KB	Output is correct
27	Correct	6 ms	632 KB	Output is correct
28	Correct	7 ms	504 KB	Output is correct
29	Correct	8 ms	888 KB	Output is correct
30	Correct	8 ms	892 KB	Output is correct
31	Correct	44 ms	8068 KB	Output is correct
32	Correct	57 ms	9020 KB	Output is correct
33	Correct	56 ms	10424 KB	Output is correct
34	Correct	47 ms	9276 KB	Output is correct
35	Correct	53 ms	10428 KB	Output is correct
36	Correct	69 ms	12348 KB	Output is correct
37	Correct	57 ms	10552 KB	Output is correct
38	Correct	46 ms	8888 KB	Output is correct
39	Correct	17 ms	1528 KB	Output is correct
40	Correct	59 ms	11068 KB	Output is correct
41	Correct	15 ms	1528 KB	Output is correct
42	Correct	21 ms	3112 KB	Output is correct
43	Correct	18 ms	1400 KB	Output is correct
44	Correct	27 ms	4488 KB	Output is correct
45	Correct	28 ms	4616 KB	Output is correct
46	Execution timed out	1550 ms	148680 KB	Time limit exceeded
47	Halted	0 ms	0 KB	-

답안 #200536

Compilation message

Subtask #1 13.0 / 13.0

Subtask #2 14.0 / 14.0

Subtask #3 10.0 / 10.0

Subtask #4 0 / 36.0

Subtask #5 0 / 27.0

Subtask #1
13.0 / 13.0

Subtask #2
14.0 / 14.0

Subtask #3
10.0 / 10.0

Subtask #4
0 / 36.0

Subtask #5
0 / 27.0