Submission #1290424

#	Time	Username	Problem	Language	Result	Execution time	Memory
1290424		dirtblock	Stove (JOI18_stove)	C++20	100 / 100	41 ms	2340 KiB

stove

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

int32_t main() {
	int n,k; cin>>n>>k;
	vector<int> a(n);
	for(int i=0; i<n; i++) cin>>a[i];
	vector<int> b;
	for(int i=1; i<n; i++) b.push_back(a[i]-a[i-1]-1);
	sort(b.begin(),b.end());
	reverse(b.begin(),b.end());
	int ans=a[n-1]-a[0]+1;
	for(int i=0; i<k-1; i++) ans-=b[i];
	cout<<ans;
	
	return 0;
}

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