답안 #265520

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
265520	2020-08-15T00:02:07 Z	Segtree	Bigger segments (IZhO19_segments)	C++14	37 / 100	650 ms	71356 KB

segments

#include<iostream>
#include<algorithm>
#include<vector>
#include<fstream>
using namespace std;
typedef long long ll;
typedef pair<ll,ll> P;
#define rep(i,n) for(int i=0;i<n;i++)
#define all(x) x.begin(),x.end()
#define chmin(a,b) a=min(a,b)
#define chmax(a,b) a=max(a,b)
#define N 3010
ll n,a[N],s[N];
ll dp[N][N];
int main(){
	cin.tie(0);
	ios::sync_with_stdio(0);
	cin>>n;
	rep(i,n)cin>>a[i];
	s[0]=0;
	rep(i,n)s[i+1]=s[i]+a[i];
	rep(i,n+1)dp[i][0]=1e18;
	dp[0][0]=0;
	for(int k=1;k<=n;k++){
		vector<ll> score,place;
		//scoreは単調増加
		for(int i=0;i<=n;i++){
			ll l=-1,r=score.size(),mid;
			while(l<r-1){
				mid=(l+r)>>1;
				if(s[i]>=score[mid])l=mid;
				else r=mid;
			}
			if(l>=0){
				dp[i][k]=s[i]-s[place[l]];
			}
			else dp[i][k]=1e18;
			ll sc=dp[i][k-1]+s[i];
			while(score.size()>0){
				if(score.back()>=sc){
					score.pop_back();
					place.pop_back();
				}
				else break;
			}
			score.push_back(sc);
			place.push_back(i);
		}
	}
	ll ans=1;
	for(int k=1;k<=n;k++){
		if(dp[n][k]<1e18)ans=k;
	}
	cout<<ans<<endl;
}

Subtask #1
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	0 ms	384 KB	Output is correct
3	Correct	0 ms	384 KB	Output is correct
4	Correct	1 ms	512 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct
8	Correct	0 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct
15	Correct	1 ms	384 KB	Output is correct

Subtask #2
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	0 ms	384 KB	Output is correct
3	Correct	0 ms	384 KB	Output is correct
4	Correct	1 ms	512 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct
8	Correct	0 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct
15	Correct	1 ms	384 KB	Output is correct
16	Correct	11 ms	4352 KB	Output is correct
17	Correct	9 ms	4352 KB	Output is correct
18	Correct	9 ms	4352 KB	Output is correct
19	Correct	10 ms	4352 KB	Output is correct
20	Correct	9 ms	4352 KB	Output is correct
21	Correct	12 ms	4352 KB	Output is correct
22	Correct	7 ms	3200 KB	Output is correct
23	Correct	4 ms	2304 KB	Output is correct
24	Correct	11 ms	4352 KB	Output is correct
25	Correct	10 ms	4352 KB	Output is correct
26	Correct	8 ms	4352 KB	Output is correct
27	Correct	13 ms	4352 KB	Output is correct
28	Correct	9 ms	4352 KB	Output is correct
29	Correct	8 ms	4352 KB	Output is correct
30	Correct	10 ms	4352 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	0 ms	384 KB	Output is correct
3	Correct	0 ms	384 KB	Output is correct
4	Correct	1 ms	512 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct
8	Correct	0 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct
15	Correct	1 ms	384 KB	Output is correct
16	Correct	11 ms	4352 KB	Output is correct
17	Correct	9 ms	4352 KB	Output is correct
18	Correct	9 ms	4352 KB	Output is correct
19	Correct	10 ms	4352 KB	Output is correct
20	Correct	9 ms	4352 KB	Output is correct
21	Correct	12 ms	4352 KB	Output is correct
22	Correct	7 ms	3200 KB	Output is correct
23	Correct	4 ms	2304 KB	Output is correct
24	Correct	11 ms	4352 KB	Output is correct
25	Correct	10 ms	4352 KB	Output is correct
26	Correct	8 ms	4352 KB	Output is correct
27	Correct	13 ms	4352 KB	Output is correct
28	Correct	9 ms	4352 KB	Output is correct
29	Correct	8 ms	4352 KB	Output is correct
30	Correct	10 ms	4352 KB	Output is correct
31	Correct	650 ms	71160 KB	Output is correct
32	Correct	615 ms	71224 KB	Output is correct
33	Correct	614 ms	71288 KB	Output is correct
34	Correct	574 ms	71288 KB	Output is correct
35	Correct	506 ms	71288 KB	Output is correct
36	Correct	608 ms	71256 KB	Output is correct
37	Correct	428 ms	59384 KB	Output is correct
38	Correct	254 ms	39788 KB	Output is correct
39	Correct	604 ms	71164 KB	Output is correct
40	Correct	605 ms	71356 KB	Output is correct
41	Correct	479 ms	71160 KB	Output is correct
42	Correct	572 ms	71224 KB	Output is correct
43	Correct	597 ms	71160 KB	Output is correct
44	Correct	517 ms	71288 KB	Output is correct
45	Correct	513 ms	71312 KB	Output is correct

Subtask #4
0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	0 ms	384 KB	Output is correct
3	Correct	0 ms	384 KB	Output is correct
4	Correct	1 ms	512 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct
8	Correct	0 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct
15	Correct	1 ms	384 KB	Output is correct
16	Correct	11 ms	4352 KB	Output is correct
17	Correct	9 ms	4352 KB	Output is correct
18	Correct	9 ms	4352 KB	Output is correct
19	Correct	10 ms	4352 KB	Output is correct
20	Correct	9 ms	4352 KB	Output is correct
21	Correct	12 ms	4352 KB	Output is correct
22	Correct	7 ms	3200 KB	Output is correct
23	Correct	4 ms	2304 KB	Output is correct
24	Correct	11 ms	4352 KB	Output is correct
25	Correct	10 ms	4352 KB	Output is correct
26	Correct	8 ms	4352 KB	Output is correct
27	Correct	13 ms	4352 KB	Output is correct
28	Correct	9 ms	4352 KB	Output is correct
29	Correct	8 ms	4352 KB	Output is correct
30	Correct	10 ms	4352 KB	Output is correct
31	Correct	650 ms	71160 KB	Output is correct
32	Correct	615 ms	71224 KB	Output is correct
33	Correct	614 ms	71288 KB	Output is correct
34	Correct	574 ms	71288 KB	Output is correct
35	Correct	506 ms	71288 KB	Output is correct
36	Correct	608 ms	71256 KB	Output is correct
37	Correct	428 ms	59384 KB	Output is correct
38	Correct	254 ms	39788 KB	Output is correct
39	Correct	604 ms	71164 KB	Output is correct
40	Correct	605 ms	71356 KB	Output is correct
41	Correct	479 ms	71160 KB	Output is correct
42	Correct	572 ms	71224 KB	Output is correct
43	Correct	597 ms	71160 KB	Output is correct
44	Correct	517 ms	71288 KB	Output is correct
45	Correct	513 ms	71312 KB	Output is correct
46	Correct	3 ms	1920 KB	Output is correct
47	Incorrect	332 ms	47476 KB	Output isn't correct
48	Halted	0 ms	0 KB	-

Subtask #5
0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	0 ms	384 KB	Output is correct
3	Correct	0 ms	384 KB	Output is correct
4	Correct	1 ms	512 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	0 ms	384 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct
8	Correct	0 ms	384 KB	Output is correct
9	Correct	1 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	1 ms	384 KB	Output is correct
12	Correct	1 ms	384 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	1 ms	384 KB	Output is correct
15	Correct	1 ms	384 KB	Output is correct
16	Correct	11 ms	4352 KB	Output is correct
17	Correct	9 ms	4352 KB	Output is correct
18	Correct	9 ms	4352 KB	Output is correct
19	Correct	10 ms	4352 KB	Output is correct
20	Correct	9 ms	4352 KB	Output is correct
21	Correct	12 ms	4352 KB	Output is correct
22	Correct	7 ms	3200 KB	Output is correct
23	Correct	4 ms	2304 KB	Output is correct
24	Correct	11 ms	4352 KB	Output is correct
25	Correct	10 ms	4352 KB	Output is correct
26	Correct	8 ms	4352 KB	Output is correct
27	Correct	13 ms	4352 KB	Output is correct
28	Correct	9 ms	4352 KB	Output is correct
29	Correct	8 ms	4352 KB	Output is correct
30	Correct	10 ms	4352 KB	Output is correct
31	Correct	650 ms	71160 KB	Output is correct
32	Correct	615 ms	71224 KB	Output is correct
33	Correct	614 ms	71288 KB	Output is correct
34	Correct	574 ms	71288 KB	Output is correct
35	Correct	506 ms	71288 KB	Output is correct
36	Correct	608 ms	71256 KB	Output is correct
37	Correct	428 ms	59384 KB	Output is correct
38	Correct	254 ms	39788 KB	Output is correct
39	Correct	604 ms	71164 KB	Output is correct
40	Correct	605 ms	71356 KB	Output is correct
41	Correct	479 ms	71160 KB	Output is correct
42	Correct	572 ms	71224 KB	Output is correct
43	Correct	597 ms	71160 KB	Output is correct
44	Correct	517 ms	71288 KB	Output is correct
45	Correct	513 ms	71312 KB	Output is correct
46	Correct	3 ms	1920 KB	Output is correct
47	Incorrect	332 ms	47476 KB	Output isn't correct
48	Halted	0 ms	0 KB	-

답안 #265520

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