답안 #899367

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
899367	2024-01-05T22:44:35 Z	MongHwa	스트랩 (JOI14_straps)	C++17	100 / 100	6 ms	604 KB

straps

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

#define X first
#define Y second
#define INF 0x7f7f7f7f

int dp[2005];
vector<pair<int, int>> pos;
vector<int> zero;

int main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);

	int n;
	cin >> n;

	fill(dp, dp+n+1, -INF);

	for(int i = 0; i < n; i++)
	{
		int a, b;
		cin >> a >> b;

		if(a > 0)
			pos.push_back({a, b});
		else
			zero.push_back(b);
	}

	dp[1] = 0;
	for(int i = 0; i < (int)pos.size(); i++)
	{
		for(int j = n; j >= max(1, n-pos[i].X+1); j--)
			dp[n] = max(dp[n], dp[j] + pos[i].Y);
		for(int j = n-1; j >= max(1, pos[i].X-1); j--)
			dp[j] = max(dp[j], dp[j-pos[i].X+1] + pos[i].Y);
	}

	sort(zero.begin(), zero.end(), greater<>());

	int ans = 0;
	int sum = 0;
	for(int i = 1; i <= n; i++)
	{
		if(i <= (int)zero.size() && zero[i-1] >= 0)
			sum += zero[i-1];
		ans = max(ans, dp[i] + sum);
	}

	if(!zero.empty())
		ans = max(ans, zero[0]);
	cout << ans << '\n';
}

Subtask #1

5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	1 ms	348 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	344 KB	Output is correct
22	Correct	0 ms	344 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	344 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct

Subtask #2

5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	1 ms	344 KB	Output is correct
11	Correct	1 ms	348 KB	Output is correct
12	Correct	3 ms	604 KB	Output is correct
13	Correct	2 ms	348 KB	Output is correct
14	Correct	2 ms	348 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	1 ms	348 KB	Output is correct
17	Correct	1 ms	344 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	1 ms	348 KB	Output is correct
20	Correct	1 ms	480 KB	Output is correct
21	Correct	1 ms	348 KB	Output is correct
22	Correct	1 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	348 KB	Output is correct
25	Correct	1 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	0 ms	348 KB	Output is correct
29	Correct	6 ms	348 KB	Output is correct
30	Correct	5 ms	348 KB	Output is correct
31	Correct	5 ms	348 KB	Output is correct

Subtask #3

45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 ms	600 KB	Output is correct
3	Correct	0 ms	352 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	356 KB	Output is correct
6	Correct	0 ms	356 KB	Output is correct
7	Correct	0 ms	356 KB	Output is correct
8	Correct	1 ms	356 KB	Output is correct
9	Correct	1 ms	548 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	1 ms	348 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	1 ms	348 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	1 ms	348 KB	Output is correct
17	Correct	3 ms	604 KB	Output is correct
18	Correct	2 ms	348 KB	Output is correct
19	Correct	2 ms	348 KB	Output is correct
20	Correct	2 ms	348 KB	Output is correct
21	Correct	2 ms	348 KB	Output is correct
22	Correct	2 ms	348 KB	Output is correct
23	Correct	1 ms	348 KB	Output is correct
24	Correct	1 ms	344 KB	Output is correct
25	Correct	1 ms	344 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	1 ms	348 KB	Output is correct
28	Correct	1 ms	348 KB	Output is correct
29	Correct	1 ms	600 KB	Output is correct
30	Correct	1 ms	348 KB	Output is correct
31	Correct	1 ms	348 KB	Output is correct
32	Correct	1 ms	344 KB	Output is correct
33	Correct	6 ms	348 KB	Output is correct

Subtask #4

45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	1 ms	348 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	1 ms	344 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	1 ms	348 KB	Output is correct
14	Correct	1 ms	348 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	1 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	5 ms	348 KB	Output is correct
20	Correct	6 ms	496 KB	Output is correct
21	Correct	6 ms	348 KB	Output is correct
22	Correct	5 ms	348 KB	Output is correct
23	Correct	6 ms	348 KB	Output is correct
24	Correct	5 ms	348 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct