Submission #1257241

#	Time	Username	Problem	Language	Result	Execution time	Memory
1257241		ykc0606	Stove (JOI18_stove)	C++20	100 / 100	13 ms	2244 KiB

stove

#include <bits/stdc++.h>
#define int long long 
#define MAXN 200001
using namespace std;

int32_t main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL); 
	int n,k;
	cin >> n >> k;
	vector<int> t(n+1,0),v;
	for(int i=1;i<=n;i++)cin >> t[i];
	for(int i=2;i<=n;i++)v.push_back(t[i]-t[i-1]-1);
	
	sort(v.begin(),v.end());
	int ans=n;
	for(int i=0;i<n-k;i++)ans+=v[i];
	cout << ans << "\n";
	return 0;
}

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