Submission #1136131

#	Time	Username	Problem	Language	Result	Execution time	Memory
1136131		yoshi	Stove (JOI18_stove)	C++20	100 / 100	13 ms	2364 KiB

stove

#include<bits/stdc++.h>
#define ll long long
using namespace std;
void uwu(){
    ll n,k;
    cin>>n>>k;
    ll a[n+8];
    for(ll i=0; i<n; i++) cin>>a[i];
    vector<ll> x;
    for(ll i=n-1; i>=1; i--){
        x.push_back(a[i]-a[i-1]);
    }
    ll ans=a[n-1]-a[0];
    sort(x.begin(), x.end());
    for(ll i=n-2; i>=n-k; i--){
        ans-=x[i];
    }
    ans+=k;
    cout<<ans<<"\n";
}
int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    ll t=1;
    //cin>>t;
    while(t--){
        uwu();
    }
}

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