Submission #1139539

#	Time	Username	Problem	Language	Result	Execution time	Memory
1139539		Luvidi	Stove (JOI18_stove)	C++17	100 / 100	12 ms	1096 KiB

stove

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define pll pair<ll, ll>
#define pii pair<int, int>
#define fs first
#define sc second
#define pb push_back

void solve() {
    int n,k;
    cin>>n>>k;
    int a[n];
    for(int i=0;i<n;i++)cin>>a[i];
    int d[n-1],c=n;
    for(int i=0;i<n-1;i++)d[i]=a[i+1]-a[i]-1;
    sort(d,d+n-1);
    for(int i=0;i<n-k;i++)c+=d[i];
    cout<<c<<'\n';
}

int main() {
    #ifdef FPO
        freopen("in","r",stdin);
        freopen("out","w",stdout);
    #endif
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    solve();
}

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