Submission #1242949

#	Time	Username	Problem	Language	Result	Execution time	Memory
1242949		whatisdp	Stove (JOI18_stove)	C++17	100 / 100	12 ms	584 KiB

stove

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

void solve() {
	int n,k;
	cin>>n>>k;
	if (n==1) {
		cout<<1;
		return;
	}
	vector<int> diff(n-1);
	int x1,x2;cin>>x1;
	for(int i=0;i<n-1;i++) {
		cin>>x2;
		diff[i]=x2-x1;
		x1=x2;
	}
	//for(auto e:diff) cout<<e<<' ';
	//cout<<'\n';
	sort(diff.begin(), diff.end());
	int s=0;
	for(int i=0;i<n-k;i++) s+=diff[i]-1;
	cout<<s+n<<'\n';
}

int main() {
	cin.tie(0)->sync_with_stdio(0);
	//int t;cin>>t;for(int i=1;i<=t;i++) {
	//	cout<<"CASE "<<i<<": ";
		solve();
	//}
}

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