Submission #127327

#	Time	Username	Problem	Language	Result	Execution time	Memory
127327		lamkhanh	Stove (JOI18_stove)	C++17	100 / 100	83 ms	2224 KiB

stove

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

int n, k, i, timego[100002], kc[100002];

int main(){
	cin >> n >> k;
	if(n==k){
		cout << n;
		return 0;
	}
	else{
		for(i=1;i<=n;i++)
			cin >> timego[i];
		for(i=1;i<n;i++)
			kc[i] = timego[i+1] - timego[i] - 1;
		sort(kc+1, kc+n);
		int ans = n;
		for(i=1;i<n-k+1;i++)
			ans += kc[i];
		cout << ans;
	}
}

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