답안 #55139 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
55139	2018-07-06T06:15:42 Z	강태규(#1525)	도넛 (JOI14_ho_t3)	C++11	100 / 100	91 ms	3452 KB

2014_ho_t3

#include <iostream>
#include <algorithm>
#include <vector>
#include <queue>
#include <deque>
#include <set>
#include <map>
#include <unordered_map>
#include <functional>
#include <cstring>
#include <cmath>
#include <ctime>
#include <cstdlib>

using namespace std;
typedef long long llong;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<llong, llong> pll;

int n;
int a[100001];
llong sum[300001];
int check(llong x) {
    for (int i = 0, j = 0, k = 0; i < n; ++i) {
        while (j <= 3 * n && sum[j] - sum[i] < x) ++j;
        while (k <= 3 * n && sum[k] - sum[j] < x) ++k;
        if (sum[k] - sum[j] < sum[j] - sum[i]) continue;
        if (sum[n] - (sum[k] - sum[i]) < sum[j] - sum[i]) continue;
        return 1;
    }
    return 0;
}

int main() {
    scanf("%d", &n);
    for (int i = 1; i <= n; ++i) {
        scanf("%d", a + i);
        sum[i] = sum[i - 1] + a[i];
    }
    for (int i = 1; i <= n; ++i) {
        sum[i + n] = sum[i] + sum[n];
        sum[i + n + n] = sum[i] + sum[n] + sum[n];
    }
    llong s = 0, e = sum[n] / 3;
    while (s < e) {
        llong m = (s + e + 1) / 2;
        if (check(m)) s = m;
        else e = m - 1;
    }
    printf("%lld\n", s);
	return 0;
}

Compilation message

2014_ho_t3.cpp: In function 'int main()':
2014_ho_t3.cpp:36:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
2014_ho_t3.cpp:38:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d", a + i);
         ~~~~~^~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	320 KB	Output is correct
2	Correct	3 ms	484 KB	Output is correct
3	Correct	2 ms	508 KB	Output is correct
4	Correct	2 ms	584 KB	Output is correct
5	Correct	2 ms	584 KB	Output is correct
6	Correct	2 ms	584 KB	Output is correct
7	Correct	2 ms	584 KB	Output is correct
8	Correct	2 ms	584 KB	Output is correct
9	Correct	2 ms	584 KB	Output is correct
10	Correct	2 ms	584 KB	Output is correct

Subtask #2
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	320 KB	Output is correct
2	Correct	3 ms	484 KB	Output is correct
3	Correct	2 ms	508 KB	Output is correct
4	Correct	2 ms	584 KB	Output is correct
5	Correct	2 ms	584 KB	Output is correct
6	Correct	2 ms	584 KB	Output is correct
7	Correct	2 ms	584 KB	Output is correct
8	Correct	2 ms	584 KB	Output is correct
9	Correct	2 ms	584 KB	Output is correct
10	Correct	2 ms	584 KB	Output is correct
11	Correct	3 ms	584 KB	Output is correct
12	Correct	3 ms	584 KB	Output is correct
13	Correct	3 ms	584 KB	Output is correct
14	Correct	2 ms	584 KB	Output is correct
15	Correct	2 ms	584 KB	Output is correct
16	Correct	2 ms	704 KB	Output is correct
17	Correct	2 ms	704 KB	Output is correct
18	Correct	2 ms	704 KB	Output is correct
19	Correct	3 ms	704 KB	Output is correct
20	Correct	3 ms	704 KB	Output is correct

Subtask #3
30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	320 KB	Output is correct
2	Correct	3 ms	484 KB	Output is correct
3	Correct	2 ms	508 KB	Output is correct
4	Correct	2 ms	584 KB	Output is correct
5	Correct	2 ms	584 KB	Output is correct
6	Correct	2 ms	584 KB	Output is correct
7	Correct	2 ms	584 KB	Output is correct
8	Correct	2 ms	584 KB	Output is correct
9	Correct	2 ms	584 KB	Output is correct
10	Correct	2 ms	584 KB	Output is correct
11	Correct	3 ms	584 KB	Output is correct
12	Correct	3 ms	584 KB	Output is correct
13	Correct	3 ms	584 KB	Output is correct
14	Correct	2 ms	584 KB	Output is correct
15	Correct	2 ms	584 KB	Output is correct
16	Correct	2 ms	704 KB	Output is correct
17	Correct	2 ms	704 KB	Output is correct
18	Correct	2 ms	704 KB	Output is correct
19	Correct	3 ms	704 KB	Output is correct
20	Correct	3 ms	704 KB	Output is correct
21	Correct	5 ms	764 KB	Output is correct
22	Correct	4 ms	764 KB	Output is correct
23	Correct	7 ms	764 KB	Output is correct
24	Correct	5 ms	764 KB	Output is correct
25	Correct	7 ms	892 KB	Output is correct
26	Correct	7 ms	892 KB	Output is correct
27	Correct	8 ms	892 KB	Output is correct
28	Correct	7 ms	892 KB	Output is correct
29	Correct	7 ms	892 KB	Output is correct
30	Correct	8 ms	892 KB	Output is correct
31	Correct	4 ms	892 KB	Output is correct
32	Correct	4 ms	892 KB	Output is correct
33	Correct	5 ms	892 KB	Output is correct
34	Correct	4 ms	892 KB	Output is correct
35	Correct	4 ms	892 KB	Output is correct

Subtask #4
50.0 / 50.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	320 KB	Output is correct
2	Correct	3 ms	484 KB	Output is correct
3	Correct	2 ms	508 KB	Output is correct
4	Correct	2 ms	584 KB	Output is correct
5	Correct	2 ms	584 KB	Output is correct
6	Correct	2 ms	584 KB	Output is correct
7	Correct	2 ms	584 KB	Output is correct
8	Correct	2 ms	584 KB	Output is correct
9	Correct	2 ms	584 KB	Output is correct
10	Correct	2 ms	584 KB	Output is correct
11	Correct	3 ms	584 KB	Output is correct
12	Correct	3 ms	584 KB	Output is correct
13	Correct	3 ms	584 KB	Output is correct
14	Correct	2 ms	584 KB	Output is correct
15	Correct	2 ms	584 KB	Output is correct
16	Correct	2 ms	704 KB	Output is correct
17	Correct	2 ms	704 KB	Output is correct
18	Correct	2 ms	704 KB	Output is correct
19	Correct	3 ms	704 KB	Output is correct
20	Correct	3 ms	704 KB	Output is correct
21	Correct	5 ms	764 KB	Output is correct
22	Correct	4 ms	764 KB	Output is correct
23	Correct	7 ms	764 KB	Output is correct
24	Correct	5 ms	764 KB	Output is correct
25	Correct	7 ms	892 KB	Output is correct
26	Correct	7 ms	892 KB	Output is correct
27	Correct	8 ms	892 KB	Output is correct
28	Correct	7 ms	892 KB	Output is correct
29	Correct	7 ms	892 KB	Output is correct
30	Correct	8 ms	892 KB	Output is correct
31	Correct	4 ms	892 KB	Output is correct
32	Correct	4 ms	892 KB	Output is correct
33	Correct	5 ms	892 KB	Output is correct
34	Correct	4 ms	892 KB	Output is correct
35	Correct	4 ms	892 KB	Output is correct
36	Correct	72 ms	3324 KB	Output is correct
37	Correct	91 ms	3356 KB	Output is correct
38	Correct	73 ms	3356 KB	Output is correct
39	Correct	67 ms	3360 KB	Output is correct
40	Correct	55 ms	3360 KB	Output is correct
41	Correct	64 ms	3452 KB	Output is correct
42	Correct	75 ms	3452 KB	Output is correct
43	Correct	76 ms	3452 KB	Output is correct
44	Correct	76 ms	3452 KB	Output is correct
45	Correct	48 ms	3452 KB	Output is correct
46	Correct	29 ms	3452 KB	Output is correct
47	Correct	26 ms	3452 KB	Output is correct
48	Correct	27 ms	3452 KB	Output is correct

답안 #55139

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 15.0 / 15.0

Subtask #3 30.0 / 30.0

Subtask #4 50.0 / 50.0

Subtask #1
5.0 / 5.0

Subtask #2
15.0 / 15.0

Subtask #3
30.0 / 30.0

Subtask #4
50.0 / 50.0