Submission #1248783

#	Time	Username	Problem	Language	Result	Execution time	Memory
1248783		avohado	Stove (JOI18_stove)	C++20	0 / 100	0 ms	320 KiB

stove

#include <bits/stdc++.h>
using namespace std;
#define mod 1000000007
#define maxn 200005
#define f first
#define s second
#define ll long long
#define pb(x) push_back(x)
void solve(){
    int n, k;
    cin >> n >> k;
    int a[n];
    int b[n-1];
    for(int i=0; i<n; i++){
        cin >> a[i];
    }
    sort(a, a+n);
    for(int i=1; i<n; i++){
        b[i]=a[i]-a[i-1]-1;
    }
    sort(b, b+n);
    long long sum=0;
    for(int i=0; i<n-k; i++){
        sum+=b[i];
    }
    cout << sum+n;
}
int main(){
    cin.tie(nullptr)->sync_with_stdio(0);
    int t=1;
    cin >> t;
    while(t--){
        solve();
        cout << "\n";
    }
    return 0;
}

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