Submission #1181096

#	Time	Username	Problem	Language	Result	Execution time	Memory
1181096		Paz15	Stove (JOI18_stove)	C++20	100 / 100	11 ms	584 KiB

stove

//fast
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;

#define rep(n) for(int i = 0 ; i<n ; i++)
#define all(x) x.begin(),x.end()
#define pb push_back

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n,k;
	cin >> n >> k;
	ll w = n;
	int last;
	cin >> last;
	int xd[n-1];
	rep(n-1){
		int x;
		cin >> x;
		xd[i] = x-last-1;
		last = x;
	}
	sort(xd,xd+n-1);
	for (int i = 0 ; i<n-k ; i++){
		w+=xd[i];
	}
	cout << w << '\n';
}

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