Submission #666821

#	Time	Username	Problem	Language	Result	Execution time	Memory
666821		Koful123	Stove (JOI18_stove)	C++17	0 / 100	1 ms	316 KiB

stove

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define endl "\n"
#define pb push_back
#define ff first
#define ss second
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()

void solve(){

	int n,k;
	cin >> n >> k;

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

	vector<int> diff; int ans = v[n-1];
	for(int i = 1; i < n; i++){
		diff.pb(v[i] - v[i-1] - 1);
	}

	sort(rall(diff));
	for(int i = 0; i + 1 < k; i++){
		ans -= diff[i];
	}

	cout << ans << endl;
}
 
signed main(){	
 		
	ios::sync_with_stdio(0);
	cin.tie(0);
 
	int t = 1;
//	cin >> t;
 
	while(t--)
		solve();
 
	return 0;
}

• Subtask 1: 0 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 50