oj.uz

답안 #930611

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
930611 2024-02-20T07:54:34 Z ArgoCahaya Stove (JOI18_stove) C++14
50 / 100
 1000 ms 262144 KB 
#include <bits/stdc++.h>
using namespace std;
const int INF = 2000000000;
int n, k;
int a[5005];
int dp[5005][5005][2];

int f(int idx, int cnt, int state)
{
    if (cnt > k)
        return INF;
    if (idx == n)
    {
        if (state == 1)
            return 0;
        else
        {
            if (cnt < k)
                return 1;
            return INF;
        }
    }

    int &ret = dp[idx][cnt][state];
    if (ret != -1)
        return ret;

    ret = INF;
    if (state)
    {
        ret = min(ret, f(idx + 1, cnt, 1) + (a[idx + 1] - a[idx]));
        ret = min(ret, f(idx + 1, cnt, 0) + (a[idx + 1] - a[idx]));
    }
    else
    {
        ret = min(ret, f(idx + 1, cnt + 1, 1) + 1);
        ret = min(ret, f(idx + 1, cnt + 1, 0) + 1);
    }
    return ret;
}

int main()
{
    memset(dp, -1, sizeof(dp));
    cin >> n >> k;
    for (int i = 1; i <= n; i++)
    {
        cin >> a[i];
    }
    cout << f(0, 0, 0) << endl;
    return 0;
}

Subtask #1
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 43 ms 196436 KB Output is correct
2 Correct 35 ms 196444 KB Output is correct
3 Correct 36 ms 196436 KB Output is correct
4 Correct 34 ms 196464 KB Output is correct
5 Correct 36 ms 196436 KB Output is correct
6 Correct 35 ms 196312 KB Output is correct
7 Correct 35 ms 196436 KB Output is correct
8 Correct 34 ms 196452 KB Output is correct
9 Correct 35 ms 196440 KB Output is correct

Subtask #2
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 43 ms 196436 KB Output is correct
2 Correct 35 ms 196444 KB Output is correct
3 Correct 36 ms 196436 KB Output is correct
4 Correct 34 ms 196464 KB Output is correct
5 Correct 36 ms 196436 KB Output is correct
6 Correct 35 ms 196312 KB Output is correct
7 Correct 35 ms 196436 KB Output is correct
8 Correct 34 ms 196452 KB Output is correct
9 Correct 35 ms 196440 KB Output is correct
10 Correct 36 ms 196580 KB Output is correct
11 Correct 43 ms 196692 KB Output is correct
12 Correct 98 ms 196740 KB Output is correct
13 Correct 134 ms 196944 KB Output is correct
14 Correct 137 ms 196688 KB Output is correct
15 Correct 136 ms 196692 KB Output is correct

Subtask #3
0 / 50.0

# 결과 실행 시간 메모리 Grader output
1 Correct 43 ms 196436 KB Output is correct
2 Correct 35 ms 196444 KB Output is correct
3 Correct 36 ms 196436 KB Output is correct
4 Correct 34 ms 196464 KB Output is correct
5 Correct 36 ms 196436 KB Output is correct
6 Correct 35 ms 196312 KB Output is correct
7 Correct 35 ms 196436 KB Output is correct
8 Correct 34 ms 196452 KB Output is correct
9 Correct 35 ms 196440 KB Output is correct
10 Correct 36 ms 196580 KB Output is correct
11 Correct 43 ms 196692 KB Output is correct
12 Correct 98 ms 196740 KB Output is correct
13 Correct 134 ms 196944 KB Output is correct
14 Correct 137 ms 196688 KB Output is correct
15 Correct 136 ms 196692 KB Output is correct
16 Execution timed out 2298 ms 262144 KB Time limit exceeded
17 Halted 0 ms 0 KB -