Submission #41147

#	Time	Username	Problem	Language	Result	Execution time	Memory
41147		ngkan146	Stove (JOI18_stove)	C++98	100 / 100	35 ms	1772 KiB

stove

#include <bits/stdc++.h>
using namespace std;
int n,k,a[100005];
priority_queue <int> pq;
int main(){
    iostream::sync_with_stdio(0);
    cin >> n >> k;
    for(int i=1;i<=n;i++)   cin >> a[i];
    for(int i=1;i<n;i++)    pq.push(a[i+1] - a[i] - 1);
    int res = a[n] - a[1] + 1;
    k --;
    while(k--){
        res -= pq.top();
        pq.pop();
    }
    cout << res;
}

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