답안 #39692 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
39692	2018-01-17T10:43:58 Z	14kg	스트랩 (JOI14_straps)	C++11	100 / 100	13 ms	1136 KB

straps

#include <stdio.h>
#include <algorithm>
#define INF 2000000000
#define max2(x,y) (x>y?x:y)
#define min2(x,y) (x<y?x:y)

using namespace std;
int n, dp[2001];
pair<int, int> in[2001];

int main() {
	int x, y, w, out = 0;
	scanf("%d", &n);
	for (int i = 2; i <= n; i++) dp[i] = -INF;
	for (int i = 1; i <= n; i++) scanf("%d %d", &in[i].first, &in[i].second);
	sort(in + 1, in + n + 1);
	for (int k = n; k >= 1; k--) {
		x = in[k].first - 1, y = in[k].second;
		if (x < 0) {
			for (int i = 0; i < n; i++) dp[i] = max2(dp[i], dp[i + 1] + y);
		}
		else {
			for (int i = n; i >= 0; i--) {
				w = min2(n, i + x);
				dp[w] = max2(dp[w], dp[i] + y);
			}
		}
	}
	for (int i = 0; i <= n; i++) out = max2(out, dp[i]);
	printf("%d", out);
}

Compilation message

straps.cpp: In function 'int main()':
straps.cpp:13:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
                 ^
straps.cpp:15:74: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for (int i = 1; i <= n; i++) scanf("%d %d", &in[i].first, &in[i].second);
                                                                          ^

Subtask #1
5.0 / 5.0

#	결과	메모리	Grader output
1	Correct	1136 KB	Output is correct
2	Correct	1136 KB	Output is correct
3	Correct	1136 KB	Output is correct
4	Correct	1136 KB	Output is correct
5	Correct	1136 KB	Output is correct
6	Correct	1136 KB	Output is correct
7	Correct	1136 KB	Output is correct
8	Correct	1136 KB	Output is correct
9	Correct	1136 KB	Output is correct
10	Correct	1136 KB	Output is correct
11	Correct	1136 KB	Output is correct
12	Correct	1136 KB	Output is correct
13	Correct	1136 KB	Output is correct
14	Correct	1136 KB	Output is correct
15	Correct	1136 KB	Output is correct
16	Correct	1136 KB	Output is correct
17	Correct	1136 KB	Output is correct
18	Correct	1136 KB	Output is correct
19	Correct	1136 KB	Output is correct
20	Correct	1136 KB	Output is correct
21	Correct	1136 KB	Output is correct
22	Correct	1136 KB	Output is correct
23	Correct	1136 KB	Output is correct
24	Correct	1136 KB	Output is correct
25	Correct	1136 KB	Output is correct

Subtask #2
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	1136 KB	Output is correct
2	Correct	0 ms	1136 KB	Output is correct
3	Correct	0 ms	1136 KB	Output is correct
4	Correct	0 ms	1136 KB	Output is correct
5	Correct	0 ms	1136 KB	Output is correct
6	Correct	0 ms	1136 KB	Output is correct
7	Correct	0 ms	1136 KB	Output is correct
8	Correct	3 ms	1136 KB	Output is correct
9	Correct	0 ms	1136 KB	Output is correct
10	Correct	0 ms	1136 KB	Output is correct
11	Correct	0 ms	1136 KB	Output is correct
12	Correct	3 ms	1136 KB	Output is correct
13	Correct	3 ms	1136 KB	Output is correct
14	Correct	3 ms	1136 KB	Output is correct
15	Correct	3 ms	1136 KB	Output is correct
16	Correct	3 ms	1136 KB	Output is correct
17	Correct	6 ms	1136 KB	Output is correct
18	Correct	3 ms	1136 KB	Output is correct
19	Correct	3 ms	1136 KB	Output is correct
20	Correct	3 ms	1136 KB	Output is correct
21	Correct	3 ms	1136 KB	Output is correct
22	Correct	3 ms	1136 KB	Output is correct
23	Correct	3 ms	1136 KB	Output is correct
24	Correct	3 ms	1136 KB	Output is correct
25	Correct	3 ms	1136 KB	Output is correct
26	Correct	3 ms	1136 KB	Output is correct
27	Correct	3 ms	1136 KB	Output is correct
28	Correct	3 ms	1136 KB	Output is correct
29	Correct	9 ms	1136 KB	Output is correct
30	Correct	9 ms	1136 KB	Output is correct
31	Correct	9 ms	1136 KB	Output is correct

Subtask #3
45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	1136 KB	Output is correct
2	Correct	0 ms	1136 KB	Output is correct
3	Correct	0 ms	1136 KB	Output is correct
4	Correct	0 ms	1136 KB	Output is correct
5	Correct	0 ms	1136 KB	Output is correct
6	Correct	0 ms	1136 KB	Output is correct
7	Correct	0 ms	1136 KB	Output is correct
8	Correct	0 ms	1136 KB	Output is correct
9	Correct	0 ms	1136 KB	Output is correct
10	Correct	0 ms	1136 KB	Output is correct
11	Correct	0 ms	1136 KB	Output is correct
12	Correct	0 ms	1136 KB	Output is correct
13	Correct	3 ms	1136 KB	Output is correct
14	Correct	3 ms	1136 KB	Output is correct
15	Correct	0 ms	1136 KB	Output is correct
16	Correct	0 ms	1136 KB	Output is correct
17	Correct	6 ms	1136 KB	Output is correct
18	Correct	6 ms	1136 KB	Output is correct
19	Correct	3 ms	1136 KB	Output is correct
20	Correct	3 ms	1136 KB	Output is correct
21	Correct	3 ms	1136 KB	Output is correct
22	Correct	6 ms	1136 KB	Output is correct
23	Correct	3 ms	1136 KB	Output is correct
24	Correct	6 ms	1136 KB	Output is correct
25	Correct	3 ms	1136 KB	Output is correct
26	Correct	3 ms	1136 KB	Output is correct
27	Correct	3 ms	1136 KB	Output is correct
28	Correct	3 ms	1136 KB	Output is correct
29	Correct	3 ms	1136 KB	Output is correct
30	Correct	3 ms	1136 KB	Output is correct
31	Correct	3 ms	1136 KB	Output is correct
32	Correct	3 ms	1136 KB	Output is correct
33	Correct	6 ms	1136 KB	Output is correct

Subtask #4
45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	1136 KB	Output is correct
2	Correct	3 ms	1136 KB	Output is correct
3	Correct	3 ms	1136 KB	Output is correct
4	Correct	3 ms	1136 KB	Output is correct
5	Correct	3 ms	1136 KB	Output is correct
6	Correct	3 ms	1136 KB	Output is correct
7	Correct	3 ms	1136 KB	Output is correct
8	Correct	3 ms	1136 KB	Output is correct
9	Correct	6 ms	1136 KB	Output is correct
10	Correct	3 ms	1136 KB	Output is correct
11	Correct	6 ms	1136 KB	Output is correct
12	Correct	6 ms	1136 KB	Output is correct
13	Correct	6 ms	1136 KB	Output is correct
14	Correct	3 ms	1136 KB	Output is correct
15	Correct	6 ms	1136 KB	Output is correct
16	Correct	3 ms	1136 KB	Output is correct
17	Correct	6 ms	1136 KB	Output is correct
18	Correct	6 ms	1136 KB	Output is correct
19	Correct	9 ms	1136 KB	Output is correct
20	Correct	9 ms	1136 KB	Output is correct
21	Correct	13 ms	1136 KB	Output is correct
22	Correct	13 ms	1136 KB	Output is correct
23	Correct	13 ms	1136 KB	Output is correct
24	Correct	13 ms	1136 KB	Output is correct
25	Correct	6 ms	1136 KB	Output is correct

답안 #39692

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 5.0 / 5.0

Subtask #3 45.0 / 45.0

Subtask #4 45.0 / 45.0

Subtask #1
5.0 / 5.0

Subtask #2
5.0 / 5.0

Subtask #3
45.0 / 45.0

Subtask #4
45.0 / 45.0