Submission #1285961

#	Time	Username	Problem	Language	Result	Execution time	Memory
1285961		harryleee	Stove (JOI18_stove)	C++20	50 / 100	156 ms	327680 KiB

stove

#include<bits/stdc++.h>
using namespace std;
int n, k, a[100001];

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

    cin >> n >> k;
    for (int i = 1; i <= n; ++i){
        cin >> a[i];
    }
    
    vector<vector<long long>> dp(n + 1, vector<long long> (k + 1, 1e18));
    dp[0][0] = 0;
    for (int i = 1; i <= n; ++i){
        for (int j = 1; j <= k; ++j){
            dp[i][j] = min({dp[i][j], dp[i - 1][j] + a[i] - a[i - 1], dp[i - 1][j - 1] + 1});
            //cout << dp[i][j] << " ";
        }
        //cout << "\n";
    }

    long long res = 1e18;
    for (int i = 1; i <= k; ++i) res = min(res, dp[n][i]);
    cout << res;

    return 0;
}

• Subtask 1: 20 / 20
• Subtask 2: 30 / 30
• Subtask 3: 0 / 50