Submission #1087041

#	Time	Username	Problem	Language	Result	Execution time	Memory
1087041		MahmytM	Stove (JOI18_stove)	C++17	100 / 100	15 ms	2208 KiB

stove

#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define ff first
#define ss second
#define pb push_back
#define yes cout<<"YES"<<endl
#define no cout<<"NO"<<endl
void afterdot(int n){
	cout<<setprecision(n)<<fixed;
}
int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
// 	freopen("input.txt", "r", stdin);
// 	freopen("output.txt", "w", stdout);
	int n,m;
	cin>>n>>m;
	int a[n+2];
	for(int i=1;i<=n;i++){
		cin>>a[i];
	}
	int b[n+2];
	for(int i=1;i<n;i++){
		b[i]=a[i+1]-a[i];
	}
	sort(b+1,b+n);
	int ans=0;
	for(int i=1;i<=n-m;i++){
		ans+=b[i];
	}
	ans+=(m);
	cout<<ans<<endl;
}

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