Submission #1313684

#	Time	Username	Problem	Language	Result	Execution time	Memory
1313684		fahim903	Stove (JOI18_stove)	C++20	100 / 100	36 ms	2324 KiB

stove

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int main()
{
    ll n,k;
    cin>>n>>k;
    vector<ll> a(n);
    vector<ll> gap;
    cin>>a[0];
    for(int i = 1;i<n;i++){
        cin>>a[i];
        gap.push_back(a[i]-a[i-1]);
    }
    sort(gap.begin(),gap.end());
    ll ans = a[n-1] - a[0]+1;
    ll f = n-2;
    if(k>n)k=n;
    for(int i = 0;i<k-1;i++){
        ans -= gap[f-i] -1;
    }
    cout<<ans<<endl;
}

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