Submission #1264255

#	Time	Username	Problem	Language	Result	Execution time	Memory
1264255		nhathanh	Stove (JOI18_stove)	C++20	100 / 100	13 ms	1224 KiB

stove

#include<bits/stdc++.h>
using namespace std;
#define el "\n"
#define pii pair<int,int>
#define fi first
#define se second
#define int long long
#define file(name) if(fopen(name".inp","r")){freopen(name".inp","r",stdin);freopen(name".out","w",stdout);}
const int N=1e5+10;
int n,k,a[N],ans;
signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL); cout.tie(NULL);
    cin>>n>>k;
    ans=k;
    for(int i=1;i<=n;i++)
        cin>>a[i];
    sort(a+1,a+1+n);
    for(int i=1;i<n;i++)
        a[i]=a[i+1]-a[i];
    sort(a+1,a+n);
    for(int i=1;i<=n-k;i++)
        ans+=a[i];
    cout<<ans;
    return 0;
}

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