Submission #1263449

#	Time	Username	Problem	Language	Result	Execution time	Memory
1263449		piolk	Stove (JOI18_stove)	C++20	100 / 100	29 ms	2340 KiB

stove

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

using ll=long long;

int main(){
    int n,k;
    cin>>n>>k;

    vector<ll> times(n);

    for (int i=0;i<n;i++){
        cin>>times[i];
    }

    ll base=times.back()-times.front()+1;

    vector<ll> gaps;
    for (int i=1;i<n;i++){
        ll gap=times[i]-times[i-1]-1;
        gaps.push_back(gap);
    }

    sort(gaps.begin(),gaps.end());

    for (int i=n-2;i>=n-k;i--){
        base-=gaps[i];
    }

    cout<<base;

    return 0;
}

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