답안 #200540

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
200540	2020-02-07T06:33:16 Z	a1_N	Bigger segments (IZhO19_segments)	C++17	37 / 100	1500 ms	148588 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<int,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 << 1,tl,tm);
	else upd(pos,val,v << 1 | 1,tm + 1,tr);
	t[v] = max(t[v << 1],t[v << 1 | 1]);
}

pair<int,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 << 1,tl,tm),get(l,r,v << 1 | 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] = make_pair(dp[i - 1].F,dp[i - 1].S + a[i]);
		pair<int,long long> cur = get(1,pref[i]);
		if(cur.F > 0) dp[i] = make_pair(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	376 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	376 KB	Output is correct
14	Correct	5 ms	376 KB	Output is correct
15	Correct	5 ms	376 KB	Output is correct
16	Correct	9 ms	1400 KB	Output is correct
17	Correct	11 ms	2168 KB	Output is correct
18	Correct	11 ms	2344 KB	Output is correct
19	Correct	10 ms	2296 KB	Output is correct
20	Correct	11 ms	2296 KB	Output is correct
21	Correct	12 ms	2472 KB	Output is correct
22	Correct	11 ms	2168 KB	Output is correct
23	Correct	9 ms	1656 KB	Output is correct
24	Correct	7 ms	504 KB	Output is correct
25	Correct	11 ms	2220 KB	Output is correct
26	Correct	7 ms	504 KB	Output is correct
27	Correct	6 ms	504 KB	Output is correct
28	Correct	6 ms	504 KB	Output is correct
29	Correct	8 ms	892 KB	Output is correct
30	Correct	8 ms	888 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	376 KB	Output is correct
14	Correct	5 ms	376 KB	Output is correct
15	Correct	5 ms	376 KB	Output is correct
16	Correct	9 ms	1400 KB	Output is correct
17	Correct	11 ms	2168 KB	Output is correct
18	Correct	11 ms	2344 KB	Output is correct
19	Correct	10 ms	2296 KB	Output is correct
20	Correct	11 ms	2296 KB	Output is correct
21	Correct	12 ms	2472 KB	Output is correct
22	Correct	11 ms	2168 KB	Output is correct
23	Correct	9 ms	1656 KB	Output is correct
24	Correct	7 ms	504 KB	Output is correct
25	Correct	11 ms	2220 KB	Output is correct
26	Correct	7 ms	504 KB	Output is correct
27	Correct	6 ms	504 KB	Output is correct
28	Correct	6 ms	504 KB	Output is correct
29	Correct	8 ms	892 KB	Output is correct
30	Correct	8 ms	888 KB	Output is correct
31	Correct	42 ms	8072 KB	Output is correct
32	Correct	55 ms	9144 KB	Output is correct
33	Correct	63 ms	10424 KB	Output is correct
34	Correct	49 ms	9272 KB	Output is correct
35	Correct	54 ms	10424 KB	Output is correct
36	Correct	70 ms	12348 KB	Output is correct
37	Correct	60 ms	10552 KB	Output is correct
38	Correct	47 ms	8888 KB	Output is correct
39	Correct	19 ms	1528 KB	Output is correct
40	Correct	66 ms	11192 KB	Output is correct
41	Correct	17 ms	1528 KB	Output is correct
42	Correct	21 ms	2984 KB	Output is correct
43	Correct	16 ms	1400 KB	Output is correct
44	Correct	24 ms	4488 KB	Output is correct
45	Correct	30 ms	4612 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	376 KB	Output is correct
14	Correct	5 ms	376 KB	Output is correct
15	Correct	5 ms	376 KB	Output is correct
16	Correct	9 ms	1400 KB	Output is correct
17	Correct	11 ms	2168 KB	Output is correct
18	Correct	11 ms	2344 KB	Output is correct
19	Correct	10 ms	2296 KB	Output is correct
20	Correct	11 ms	2296 KB	Output is correct
21	Correct	12 ms	2472 KB	Output is correct
22	Correct	11 ms	2168 KB	Output is correct
23	Correct	9 ms	1656 KB	Output is correct
24	Correct	7 ms	504 KB	Output is correct
25	Correct	11 ms	2220 KB	Output is correct
26	Correct	7 ms	504 KB	Output is correct
27	Correct	6 ms	504 KB	Output is correct
28	Correct	6 ms	504 KB	Output is correct
29	Correct	8 ms	892 KB	Output is correct
30	Correct	8 ms	888 KB	Output is correct
31	Correct	42 ms	8072 KB	Output is correct
32	Correct	55 ms	9144 KB	Output is correct
33	Correct	63 ms	10424 KB	Output is correct
34	Correct	49 ms	9272 KB	Output is correct
35	Correct	54 ms	10424 KB	Output is correct
36	Correct	70 ms	12348 KB	Output is correct
37	Correct	60 ms	10552 KB	Output is correct
38	Correct	47 ms	8888 KB	Output is correct
39	Correct	19 ms	1528 KB	Output is correct
40	Correct	66 ms	11192 KB	Output is correct
41	Correct	17 ms	1528 KB	Output is correct
42	Correct	21 ms	2984 KB	Output is correct
43	Correct	16 ms	1400 KB	Output is correct
44	Correct	24 ms	4488 KB	Output is correct
45	Correct	30 ms	4612 KB	Output is correct
46	Execution timed out	1599 ms	148588 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	376 KB	Output is correct
14	Correct	5 ms	376 KB	Output is correct
15	Correct	5 ms	376 KB	Output is correct
16	Correct	9 ms	1400 KB	Output is correct
17	Correct	11 ms	2168 KB	Output is correct
18	Correct	11 ms	2344 KB	Output is correct
19	Correct	10 ms	2296 KB	Output is correct
20	Correct	11 ms	2296 KB	Output is correct
21	Correct	12 ms	2472 KB	Output is correct
22	Correct	11 ms	2168 KB	Output is correct
23	Correct	9 ms	1656 KB	Output is correct
24	Correct	7 ms	504 KB	Output is correct
25	Correct	11 ms	2220 KB	Output is correct
26	Correct	7 ms	504 KB	Output is correct
27	Correct	6 ms	504 KB	Output is correct
28	Correct	6 ms	504 KB	Output is correct
29	Correct	8 ms	892 KB	Output is correct
30	Correct	8 ms	888 KB	Output is correct
31	Correct	42 ms	8072 KB	Output is correct
32	Correct	55 ms	9144 KB	Output is correct
33	Correct	63 ms	10424 KB	Output is correct
34	Correct	49 ms	9272 KB	Output is correct
35	Correct	54 ms	10424 KB	Output is correct
36	Correct	70 ms	12348 KB	Output is correct
37	Correct	60 ms	10552 KB	Output is correct
38	Correct	47 ms	8888 KB	Output is correct
39	Correct	19 ms	1528 KB	Output is correct
40	Correct	66 ms	11192 KB	Output is correct
41	Correct	17 ms	1528 KB	Output is correct
42	Correct	21 ms	2984 KB	Output is correct
43	Correct	16 ms	1400 KB	Output is correct
44	Correct	24 ms	4488 KB	Output is correct
45	Correct	30 ms	4612 KB	Output is correct
46	Execution timed out	1599 ms	148588 KB	Time limit exceeded
47	Halted	0 ms	0 KB	-

답안 #200540

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