답안 #25548 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
25548	2017-06-23T04:07:41 Z	김동현(#1072)	스트랩 (JOI14_straps)	C++14	100 / 100	23 ms	17972 KB

straps

#include <bits/stdc++.h>
using namespace std;

struct Str{
	int a, v;
	bool operator<(const Str &oth) const {
		return a > oth.a;
	}
};

const int inf = 1e9;
int n, dp[2020][2020];
Str a[2020];

int main(){
	scanf("%d", &n);
	for(int i = 1; i <= n; i++) scanf("%d%d", &a[i].a, &a[i].v);
	sort(a + 1, a + n + 1);
	fill(dp[0], dp[0] + n + 1, -inf);
	dp[0][1] = 0;
	for(int i = 1; i <= n; i++){
		for(int j = 0; j <= n; j++) dp[i][j] = dp[i - 1][j];
		for(int j = 1; j <= n; j++){
			int &ndp = dp[i][min(j + a[i].a - 1, n)];
			ndp = max(ndp, dp[i - 1][j] + a[i].v);
		}
	}
	printf("%d\n", *max_element(dp[n], dp[n] + n + 1));
}

Compilation message

straps.cpp: In function 'int main()':
straps.cpp:16:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
                 ^
straps.cpp:17:61: 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", &a[i].a, &a[i].v);
                                                             ^

Subtask #1
5.0 / 5.0

#	결과	메모리	Grader output
1	Correct	17972 KB	Output is correct
2	Correct	17972 KB	Output is correct
3	Correct	17972 KB	Output is correct
4	Correct	17972 KB	Output is correct
5	Correct	17972 KB	Output is correct
6	Correct	17972 KB	Output is correct
7	Correct	17972 KB	Output is correct
8	Correct	17972 KB	Output is correct
9	Correct	17972 KB	Output is correct
10	Correct	17972 KB	Output is correct
11	Correct	17972 KB	Output is correct
12	Correct	17972 KB	Output is correct
13	Correct	17972 KB	Output is correct
14	Correct	17972 KB	Output is correct
15	Correct	17972 KB	Output is correct
16	Correct	17972 KB	Output is correct
17	Correct	17972 KB	Output is correct
18	Correct	17972 KB	Output is correct
19	Correct	17972 KB	Output is correct
20	Correct	17972 KB	Output is correct
21	Correct	17972 KB	Output is correct
22	Correct	17972 KB	Output is correct
23	Correct	17972 KB	Output is correct
24	Correct	17972 KB	Output is correct
25	Correct	17972 KB	Output is correct

Subtask #2
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	17972 KB	Output is correct
2	Correct	0 ms	17972 KB	Output is correct
3	Correct	0 ms	17972 KB	Output is correct
4	Correct	0 ms	17972 KB	Output is correct
5	Correct	0 ms	17972 KB	Output is correct
6	Correct	0 ms	17972 KB	Output is correct
7	Correct	0 ms	17972 KB	Output is correct
8	Correct	6 ms	17972 KB	Output is correct
9	Correct	6 ms	17972 KB	Output is correct
10	Correct	3 ms	17972 KB	Output is correct
11	Correct	6 ms	17972 KB	Output is correct
12	Correct	16 ms	17972 KB	Output is correct
13	Correct	19 ms	17972 KB	Output is correct
14	Correct	13 ms	17972 KB	Output is correct
15	Correct	16 ms	17972 KB	Output is correct
16	Correct	9 ms	17972 KB	Output is correct
17	Correct	13 ms	17972 KB	Output is correct
18	Correct	3 ms	17972 KB	Output is correct
19	Correct	13 ms	17972 KB	Output is correct
20	Correct	9 ms	17972 KB	Output is correct
21	Correct	16 ms	17972 KB	Output is correct
22	Correct	13 ms	17972 KB	Output is correct
23	Correct	13 ms	17972 KB	Output is correct
24	Correct	13 ms	17972 KB	Output is correct
25	Correct	13 ms	17972 KB	Output is correct
26	Correct	16 ms	17972 KB	Output is correct
27	Correct	19 ms	17972 KB	Output is correct
28	Correct	16 ms	17972 KB	Output is correct
29	Correct	13 ms	17972 KB	Output is correct
30	Correct	16 ms	17972 KB	Output is correct
31	Correct	13 ms	17972 KB	Output is correct

Subtask #3
45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	17972 KB	Output is correct
2	Correct	0 ms	17972 KB	Output is correct
3	Correct	0 ms	17972 KB	Output is correct
4	Correct	0 ms	17972 KB	Output is correct
5	Correct	0 ms	17972 KB	Output is correct
6	Correct	0 ms	17972 KB	Output is correct
7	Correct	0 ms	17972 KB	Output is correct
8	Correct	0 ms	17972 KB	Output is correct
9	Correct	3 ms	17972 KB	Output is correct
10	Correct	0 ms	17972 KB	Output is correct
11	Correct	3 ms	17972 KB	Output is correct
12	Correct	3 ms	17972 KB	Output is correct
13	Correct	6 ms	17972 KB	Output is correct
14	Correct	0 ms	17972 KB	Output is correct
15	Correct	3 ms	17972 KB	Output is correct
16	Correct	6 ms	17972 KB	Output is correct
17	Correct	13 ms	17972 KB	Output is correct
18	Correct	13 ms	17972 KB	Output is correct
19	Correct	9 ms	17972 KB	Output is correct
20	Correct	16 ms	17972 KB	Output is correct
21	Correct	13 ms	17972 KB	Output is correct
22	Correct	23 ms	17972 KB	Output is correct
23	Correct	13 ms	17972 KB	Output is correct
24	Correct	6 ms	17972 KB	Output is correct
25	Correct	23 ms	17972 KB	Output is correct
26	Correct	13 ms	17972 KB	Output is correct
27	Correct	0 ms	17972 KB	Output is correct
28	Correct	9 ms	17972 KB	Output is correct
29	Correct	13 ms	17972 KB	Output is correct
30	Correct	9 ms	17972 KB	Output is correct
31	Correct	9 ms	17972 KB	Output is correct
32	Correct	9 ms	17972 KB	Output is correct
33	Correct	9 ms	17972 KB	Output is correct

Subtask #4
45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	17972 KB	Output is correct
2	Correct	6 ms	17972 KB	Output is correct
3	Correct	13 ms	17972 KB	Output is correct
4	Correct	19 ms	17972 KB	Output is correct
5	Correct	9 ms	17972 KB	Output is correct
6	Correct	6 ms	17972 KB	Output is correct
7	Correct	19 ms	17972 KB	Output is correct
8	Correct	9 ms	17972 KB	Output is correct
9	Correct	13 ms	17972 KB	Output is correct
10	Correct	16 ms	17972 KB	Output is correct
11	Correct	16 ms	17972 KB	Output is correct
12	Correct	6 ms	17972 KB	Output is correct
13	Correct	9 ms	17972 KB	Output is correct
14	Correct	9 ms	17972 KB	Output is correct
15	Correct	19 ms	17972 KB	Output is correct
16	Correct	9 ms	17972 KB	Output is correct
17	Correct	13 ms	17972 KB	Output is correct
18	Correct	13 ms	17972 KB	Output is correct
19	Correct	13 ms	17972 KB	Output is correct
20	Correct	9 ms	17972 KB	Output is correct
21	Correct	13 ms	17972 KB	Output is correct
22	Correct	16 ms	17972 KB	Output is correct
23	Correct	9 ms	17972 KB	Output is correct
24	Correct	13 ms	17972 KB	Output is correct
25	Correct	16 ms	17972 KB	Output is correct

답안 #25548

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