Submission #842101

#	Time	Username	Problem	Language	Result	Execution time	Memory
842101		matthewhutama	Stove (JOI18_stove)	C++14	100 / 100	35 ms	3288 KiB

stove

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll n, k;
ll a[100005];
vector <ll> v;
int main(){
    cin >> n >> k;
    for (int i = 1; i <= n; i++){
        cin >> a[i];
        if (i > 1){
            v.push_back(a[i] - a[i - 1]);
        }
    }
    sort(v.begin(), v.end());
    ll ans = 0;
    for (int i = 0; i < n - k; i++){
        ans += v[i];
    }
    cout << ans + k;
}

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