Submission #1257550

#	Time	Username	Problem	Language	Result	Execution time	Memory
1257550		marda	Stove (JOI18_stove)	C++20	50 / 100	1096 ms	584 KiB

stove

#include<bits/stdc++.h>

#define endl "\n"
#define int long long int
#define pb push_back
#define mp make_pair
#define Bound 2e5 + 1
#define mid (l+r+1)/2

using namespace std;

void solve() {

    int n,k;
    cin >> n >> k;

    int* fuel = new int[k+1];
    for(int i = 0; i < k+1; i++) fuel[i] = 0;

    int prev;
    cin >> prev;
    fuel[1] = 1;
    int nw;

    for(int i = 1; i < n; i++) {
        cin >> nw;

        for(int j = min(i+1,k); j > max(1LL,i+k-n); j--) {

            if (fuel[j] != 0) fuel[j] = min(fuel[j-1]+1, fuel[j]+nw-prev);
            else fuel[j] = fuel[j-1]+1;

        }

        /*
        for(int j = 1; j <= k; j++) {

            cout << fuel[j] << " ";

        }
        cout << endl;
        */


        fuel[1] += nw-prev;

        prev = nw;
    }
    
    cout << fuel[k];



}

int32_t main() {

    cin.tie(0); cout.tie(0);
    //ios::sync_with_stdio(false);
    
    int t = 1; //cin >> t;

    while(t--) solve();

    return 0;
}

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