Submission #1158851

#	Time	Username	Problem	Language	Result	Execution time	Memory
1158851		aritro_	Stove (JOI18_stove)	C++20	100 / 100	29 ms	1864 KiB

stove

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

typedef long long int ll;
#define int ll
#define pb push_back
#define all(a) a.begin(),a.end()

void solve(){
    int n,k;
    cin>>n>>k;
    int a[n];
    for(int i=0;i<n;i++) cin>>a[i];
    vector<int> dif(n-1,0);
    for(int i=1;i<n;i++){
        dif[i-1]=abs(a[i-1]-a[i]);
    }
    int ans=a[n-1]-a[0]+1;
    sort(all(dif),greater<>());
    int i=0;
    k--;
    while(k--){
        ans-=dif[i]-1;
        i++;
    }
    cout<<ans<<endl;
}

int32_t main(){
    solve();
    return 0;
}

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