답안 #26831 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
26831	2017-07-06T08:18:10 Z	yutaka1999	Hacker (BOI15_hac)	C++14	100 / 100	166 ms	33268 KB

#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include <vector>
#include <cstring>
#include <queue>
#define SIZE 500005

using namespace std;
typedef long long int ll;

ll sum[SIZE*2];
ll ans[SIZE*2];

int main()
{
	int n;
	scanf("%d",&n);
	for(int i=0;i<n;i++)
	{
		ll a;
		scanf("%lld",&a);
		sum[i]=a;
		if(i>0) sum[i]+=sum[i-1];
	}
	for(int i=n;i<2*n;i++) sum[i]=sum[n-1]+sum[i-n];
	for(int i=0;i<n;i++) ans[i]=sum[n-1];
	int L=(n+1)/2;
	priority_queue <ll,vector <ll>,greater <ll> > que,rem;
	for(int i=2*n-1;i>=L;i--)
	{
		if(i>=L-1) que.push(sum[i]-(i==L-1?0:sum[i-L]));
		if(i+L<=2*n-1) rem.push(sum[i+L]-sum[i]);
		while(!rem.empty()&&rem.top()==que.top()) que.pop(),rem.pop();
		ans[i%n]=min(ans[i%n],que.top());
	}
	ll ret=0;
	for(int i=0;i<n;i++) ret=max(ret,ans[i]);
	printf("%lld\n",ret);
	return 0;
}

Compilation message

hac.cpp: In function 'int main()':
hac.cpp:18:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
                ^
hac.cpp:22:19: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld",&a);
                   ^

Subtask #1
20.0 / 20.0

#	결과	메모리	Grader output
1	Correct	16796 KB	Output is correct
2	Correct	16796 KB	Output is correct
3	Correct	16796 KB	Output is correct
4	Correct	16796 KB	Output is correct
5	Correct	16796 KB	Output is correct
6	Correct	16796 KB	Output is correct
7	Correct	16796 KB	Output is correct
8	Correct	16796 KB	Output is correct
9	Correct	16796 KB	Output is correct
10	Correct	16796 KB	Output is correct
11	Correct	16796 KB	Output is correct
12	Correct	16796 KB	Output is correct
13	Correct	16796 KB	Output is correct
14	Correct	16796 KB	Output is correct
15	Correct	16796 KB	Output is correct
16	Correct	16796 KB	Output is correct
17	Correct	16796 KB	Output is correct
18	Correct	16796 KB	Output is correct

Subtask #2
20.0 / 20.0

#	결과	메모리	Grader output
1	Correct	16796 KB	Output is correct
2	Correct	16796 KB	Output is correct
3	Correct	16796 KB	Output is correct
4	Correct	16796 KB	Output is correct
5	Correct	16796 KB	Output is correct
6	Correct	16796 KB	Output is correct
7	Correct	16796 KB	Output is correct
8	Correct	16796 KB	Output is correct
9	Correct	16796 KB	Output is correct
10	Correct	16796 KB	Output is correct
11	Correct	16796 KB	Output is correct
12	Correct	16796 KB	Output is correct
13	Correct	16796 KB	Output is correct
14	Correct	16796 KB	Output is correct
15	Correct	16796 KB	Output is correct
16	Correct	16796 KB	Output is correct
17	Correct	16796 KB	Output is correct
18	Correct	16796 KB	Output is correct
19	Correct	16796 KB	Output is correct
20	Correct	16796 KB	Output is correct
21	Correct	16796 KB	Output is correct
22	Correct	16936 KB	Output is correct
23	Correct	16936 KB	Output is correct
24	Correct	16936 KB	Output is correct
25	Correct	16936 KB	Output is correct
26	Correct	16936 KB	Output is correct
27	Correct	16796 KB	Output is correct
28	Correct	16796 KB	Output is correct
29	Correct	16796 KB	Output is correct
30	Correct	16936 KB	Output is correct
31	Correct	16936 KB	Output is correct

Subtask #3
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	16796 KB	Output is correct
2	Correct	0 ms	16796 KB	Output is correct
3	Correct	0 ms	16936 KB	Output is correct
4	Correct	19 ms	18928 KB	Output is correct
5	Correct	69 ms	20972 KB	Output is correct
6	Correct	96 ms	20972 KB	Output is correct
7	Correct	73 ms	25072 KB	Output is correct
8	Correct	133 ms	33268 KB	Output is correct

Subtask #4
40.0 / 40.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	16796 KB	Output is correct
2	Correct	0 ms	16796 KB	Output is correct
3	Correct	0 ms	16796 KB	Output is correct
4	Correct	0 ms	16796 KB	Output is correct
5	Correct	0 ms	16796 KB	Output is correct
6	Correct	0 ms	16796 KB	Output is correct
7	Correct	0 ms	16796 KB	Output is correct
8	Correct	0 ms	16796 KB	Output is correct
9	Correct	0 ms	16796 KB	Output is correct
10	Correct	0 ms	16796 KB	Output is correct
11	Correct	0 ms	16796 KB	Output is correct
12	Correct	0 ms	16796 KB	Output is correct
13	Correct	0 ms	16796 KB	Output is correct
14	Correct	0 ms	16796 KB	Output is correct
15	Correct	0 ms	16796 KB	Output is correct
16	Correct	0 ms	16796 KB	Output is correct
17	Correct	0 ms	16796 KB	Output is correct
18	Correct	0 ms	16796 KB	Output is correct
19	Correct	0 ms	16796 KB	Output is correct
20	Correct	0 ms	16796 KB	Output is correct
21	Correct	0 ms	16796 KB	Output is correct
22	Correct	0 ms	16936 KB	Output is correct
23	Correct	0 ms	16936 KB	Output is correct
24	Correct	0 ms	16936 KB	Output is correct
25	Correct	0 ms	16936 KB	Output is correct
26	Correct	0 ms	16936 KB	Output is correct
27	Correct	0 ms	16796 KB	Output is correct
28	Correct	0 ms	16796 KB	Output is correct
29	Correct	0 ms	16796 KB	Output is correct
30	Correct	0 ms	16936 KB	Output is correct
31	Correct	0 ms	16936 KB	Output is correct
32	Correct	0 ms	16796 KB	Output is correct
33	Correct	0 ms	16796 KB	Output is correct
34	Correct	0 ms	16936 KB	Output is correct
35	Correct	19 ms	18928 KB	Output is correct
36	Correct	69 ms	20972 KB	Output is correct
37	Correct	96 ms	20972 KB	Output is correct
38	Correct	73 ms	25072 KB	Output is correct
39	Correct	133 ms	33268 KB	Output is correct
40	Correct	0 ms	17068 KB	Output is correct
41	Correct	3 ms	17648 KB	Output is correct
42	Correct	3 ms	17908 KB	Output is correct
43	Correct	49 ms	23024 KB	Output is correct
44	Correct	166 ms	33268 KB	Output is correct
45	Correct	29 ms	18924 KB	Output is correct
46	Correct	106 ms	25072 KB	Output is correct
47	Correct	129 ms	33268 KB	Output is correct
48	Correct	116 ms	19952 KB	Output is correct
49	Correct	149 ms	25068 KB	Output is correct
50	Correct	133 ms	25068 KB	Output is correct

답안 #26831

Compilation message

Subtask #1 20.0 / 20.0

Subtask #2 20.0 / 20.0

Subtask #3 20.0 / 20.0

Subtask #4 40.0 / 40.0

Subtask #1
20.0 / 20.0

Subtask #2
20.0 / 20.0

Subtask #3
20.0 / 20.0

Subtask #4
40.0 / 40.0