Submission #405635

#	Time	Username	Problem	Language	Result	Execution time	Memory
405635		Gurban	Stove (JOI18_stove)	C++17	100 / 100	26 ms	2196 KiB

stove

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

using ll = long long;

const int maxn=1e5+5;
int n,k;
int t[maxn],ans;
vector<int>v;

int main(){
	ios::sync_with_stdio(false);
	cin.tie(0);

	cin >> n >> k;
	for(int i = 1;i <= n;i++){
		cin >> t[i];
		if(i != 1) v.push_back(t[i] - t[i-1] - 1);
	}
	ans = t[n] - t[1] + 1;
	sort(v.begin(),v.end());
	reverse(v.begin(),v.end());
	for(int i = 0;i < min((int)v.size(),k - 1);i++) ans -= v[i];
	cout<<ans;
}

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