답안 #32074 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
32074	2017-09-24T07:29:59 Z	imeimi2000	스트랩 (JOI14_straps)	C++14	100 / 100	13 ms	17816 KB

straps

#include <iostream>
#include <algorithm>
#include <vector>
#include <queue>
#include <deque>
#include <set>
#include <map>
#include <unordered_map>
#include <math.h>

using namespace std;
typedef long long llong;
typedef pair<int, int> pi;

int n;
const int inf = -2147483648;

int as[2000];
int bs[2000];
int dp[2000][2000];
int main() {
	ios_base::sync_with_stdio(false); cin.tie(0);
	cin >> n;
	int x, a, b;
	for (int i = 0; i < n; ++i) {
		cin >> as[i] >> bs[i];
	}

	int i = 0, j = n - 1;
	while (i < j) {
		while (i < j && as[i] != 0) ++i;
		while (i < j && as[j] == 0) --j;
		if (i < j) {
			x = as[i]; as[i] = as[j]; as[j] = x;
			x = bs[i]; bs[i] = bs[j]; bs[j] = x;
		}
	}

	for (int i = 0; i < n; ++i) {
		a = as[i]; b = bs[i];
		if (i == 0) {
			for (int j = 0; j < n; ++j) dp[0][j] = inf;
			dp[0][1] = 0;
			if (a < n)
				dp[0][a] = max(dp[0][a], b);
			else
				dp[0][n - 1] = max(dp[0][n - 1], b);
		}
		else {
			dp[i][0] = dp[i - 1][0];
			for (int j = 1; j < n - i; ++j) dp[i][j] = inf;
			for (int j = 1; j <= n - i; ++j) {
				if (dp[i - 1][j] == inf) continue;
				if (j < n - i)
					dp[i][j] = max(dp[i][j], dp[i - 1][j]);
				else
					dp[i][j - 1] = max(dp[i][j - 1], dp[i - 1][j]);
				x = j + a - 1;
				if (x < n - i) {
					dp[i][x] = max(dp[i][x], dp[i - 1][j] + b);
				}
				else {
					dp[i][n - i - 1] = max(dp[i][n - i - 1], dp[i - 1][j] + b);
				}
			}
		}
	}
	printf("%d\n", dp[n - 1][0]);
	return 0;
}

Subtask #1
5.0 / 5.0

#	결과	메모리	Grader output
1	Correct	17816 KB	Output is correct
2	Correct	17816 KB	Output is correct
3	Correct	17816 KB	Output is correct
4	Correct	17816 KB	Output is correct
5	Correct	17816 KB	Output is correct
6	Correct	17816 KB	Output is correct
7	Correct	17816 KB	Output is correct
8	Correct	17816 KB	Output is correct
9	Correct	17816 KB	Output is correct
10	Correct	17816 KB	Output is correct
11	Correct	17816 KB	Output is correct
12	Correct	17816 KB	Output is correct
13	Correct	17816 KB	Output is correct
14	Correct	17816 KB	Output is correct
15	Correct	17816 KB	Output is correct
16	Correct	17816 KB	Output is correct
17	Correct	17816 KB	Output is correct
18	Correct	17816 KB	Output is correct
19	Correct	17816 KB	Output is correct
20	Correct	17816 KB	Output is correct
21	Correct	17816 KB	Output is correct
22	Correct	17816 KB	Output is correct
23	Correct	17816 KB	Output is correct
24	Correct	17816 KB	Output is correct
25	Correct	17816 KB	Output is correct

Subtask #2
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	17816 KB	Output is correct
2	Correct	0 ms	17816 KB	Output is correct
3	Correct	0 ms	17816 KB	Output is correct
4	Correct	0 ms	17816 KB	Output is correct
5	Correct	0 ms	17816 KB	Output is correct
6	Correct	0 ms	17816 KB	Output is correct
7	Correct	0 ms	17816 KB	Output is correct
8	Correct	3 ms	17816 KB	Output is correct
9	Correct	0 ms	17816 KB	Output is correct
10	Correct	0 ms	17816 KB	Output is correct
11	Correct	0 ms	17816 KB	Output is correct
12	Correct	13 ms	17816 KB	Output is correct
13	Correct	9 ms	17816 KB	Output is correct
14	Correct	0 ms	17816 KB	Output is correct
15	Correct	9 ms	17816 KB	Output is correct
16	Correct	3 ms	17816 KB	Output is correct
17	Correct	0 ms	17816 KB	Output is correct
18	Correct	13 ms	17816 KB	Output is correct
19	Correct	9 ms	17816 KB	Output is correct
20	Correct	3 ms	17816 KB	Output is correct
21	Correct	6 ms	17816 KB	Output is correct
22	Correct	6 ms	17816 KB	Output is correct
23	Correct	9 ms	17816 KB	Output is correct
24	Correct	13 ms	17816 KB	Output is correct
25	Correct	9 ms	17816 KB	Output is correct
26	Correct	13 ms	17816 KB	Output is correct
27	Correct	13 ms	17816 KB	Output is correct
28	Correct	6 ms	17816 KB	Output is correct
29	Correct	3 ms	17816 KB	Output is correct
30	Correct	13 ms	17816 KB	Output is correct
31	Correct	13 ms	17816 KB	Output is correct

Subtask #3
45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	17816 KB	Output is correct
2	Correct	0 ms	17816 KB	Output is correct
3	Correct	0 ms	17816 KB	Output is correct
4	Correct	0 ms	17816 KB	Output is correct
5	Correct	0 ms	17816 KB	Output is correct
6	Correct	0 ms	17816 KB	Output is correct
7	Correct	0 ms	17816 KB	Output is correct
8	Correct	0 ms	17816 KB	Output is correct
9	Correct	3 ms	17816 KB	Output is correct
10	Correct	3 ms	17816 KB	Output is correct
11	Correct	0 ms	17816 KB	Output is correct
12	Correct	3 ms	17816 KB	Output is correct
13	Correct	3 ms	17816 KB	Output is correct
14	Correct	3 ms	17816 KB	Output is correct
15	Correct	0 ms	17816 KB	Output is correct
16	Correct	0 ms	17816 KB	Output is correct
17	Correct	13 ms	17816 KB	Output is correct
18	Correct	9 ms	17816 KB	Output is correct
19	Correct	9 ms	17816 KB	Output is correct
20	Correct	0 ms	17816 KB	Output is correct
21	Correct	6 ms	17816 KB	Output is correct
22	Correct	6 ms	17816 KB	Output is correct
23	Correct	6 ms	17816 KB	Output is correct
24	Correct	0 ms	17816 KB	Output is correct
25	Correct	0 ms	17816 KB	Output is correct
26	Correct	6 ms	17816 KB	Output is correct
27	Correct	3 ms	17816 KB	Output is correct
28	Correct	13 ms	17816 KB	Output is correct
29	Correct	6 ms	17816 KB	Output is correct
30	Correct	0 ms	17816 KB	Output is correct
31	Correct	9 ms	17816 KB	Output is correct
32	Correct	3 ms	17816 KB	Output is correct
33	Correct	6 ms	17816 KB	Output is correct

Subtask #4
45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	17816 KB	Output is correct
2	Correct	6 ms	17816 KB	Output is correct
3	Correct	0 ms	17816 KB	Output is correct
4	Correct	6 ms	17816 KB	Output is correct
5	Correct	13 ms	17816 KB	Output is correct
6	Correct	6 ms	17816 KB	Output is correct
7	Correct	6 ms	17816 KB	Output is correct
8	Correct	9 ms	17816 KB	Output is correct
9	Correct	6 ms	17816 KB	Output is correct
10	Correct	3 ms	17816 KB	Output is correct
11	Correct	3 ms	17816 KB	Output is correct
12	Correct	13 ms	17816 KB	Output is correct
13	Correct	13 ms	17816 KB	Output is correct
14	Correct	9 ms	17816 KB	Output is correct
15	Correct	6 ms	17816 KB	Output is correct
16	Correct	6 ms	17816 KB	Output is correct
17	Correct	13 ms	17816 KB	Output is correct
18	Correct	3 ms	17816 KB	Output is correct
19	Correct	13 ms	17816 KB	Output is correct
20	Correct	3 ms	17816 KB	Output is correct
21	Correct	0 ms	17816 KB	Output is correct
22	Correct	9 ms	17816 KB	Output is correct
23	Correct	6 ms	17816 KB	Output is correct
24	Correct	0 ms	17816 KB	Output is correct
25	Correct	9 ms	17816 KB	Output is correct

답안 #32074

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