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Submission #636998

# Submission time Handle Problem Language Result Execution time Memory
636998 2022-08-31T04:24:38 Z bonk Stove (JOI18_stove) C++14
20 / 100
 1000 ms 196216 KB 
#include <bits/stdc++.h>
#define int long long

using namespace std;

const int N = 5002;
int dp[N][N], a[N];
int n, k;

int f(int idx, int k){
    if(k < 0) return 1e18;
    if(idx > n) return 0;
    int &cur = dp[idx][k];

    if(cur != -1) return cur;

    cur = 1e18;
    for(int i = idx; i <= n; i++){
        cur = min(cur, f(i + 1, k - 1) + a[i] - a[idx] + 1);
    }

    return cur;
}

int32_t main(){
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    memset(dp, -1, sizeof(dp));
    cin >> n >> k;
    for(int i = 1; i <= n; i++) cin >> a[i];

    cout << f(1, k) << '\n';

    return 0;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 196044 KB Output is correct
2 Correct 69 ms 196096 KB Output is correct
3 Correct 70 ms 196040 KB Output is correct
4 Correct 70 ms 196044 KB Output is correct
5 Correct 72 ms 196172 KB Output is correct
6 Correct 71 ms 196096 KB Output is correct
7 Correct 72 ms 196148 KB Output is correct
8 Correct 70 ms 196044 KB Output is correct
9 Correct 73 ms 196152 KB Output is correct

Subtask #2
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 196044 KB Output is correct
2 Correct 69 ms 196096 KB Output is correct
3 Correct 70 ms 196040 KB Output is correct
4 Correct 70 ms 196044 KB Output is correct
5 Correct 72 ms 196172 KB Output is correct
6 Correct 71 ms 196096 KB Output is correct
7 Correct 72 ms 196148 KB Output is correct
8 Correct 70 ms 196044 KB Output is correct
9 Correct 73 ms 196152 KB Output is correct
10 Correct 382 ms 196216 KB Output is correct
11 Execution timed out 1100 ms 196172 KB Time limit exceeded
12 Halted 0 ms 0 KB -

Subtask #3
0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 196044 KB Output is correct
2 Correct 69 ms 196096 KB Output is correct
3 Correct 70 ms 196040 KB Output is correct
4 Correct 70 ms 196044 KB Output is correct
5 Correct 72 ms 196172 KB Output is correct
6 Correct 71 ms 196096 KB Output is correct
7 Correct 72 ms 196148 KB Output is correct
8 Correct 70 ms 196044 KB Output is correct
9 Correct 73 ms 196152 KB Output is correct
10 Correct 382 ms 196216 KB Output is correct
11 Execution timed out 1100 ms 196172 KB Time limit exceeded
12 Halted 0 ms 0 KB -