Submission #524362

#	Time	Username	Problem	Language	Result	Execution time	Memory
524362		reni	Stove (JOI18_stove)	C++17	100 / 100	21 ms	2828 KiB

stove

#include<bits/stdc++.h>
#define endl '\n'
using namespace std;
long long a[100003], r[100003];
int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    long long n,k,i,brm,res=0;

    cin>>n>>k;

    for(i=0;i<n;i++)
    {
        cin>>a[i];
        if(i!=0)r[i-1]=a[i]-a[i-1]-1;
    }
    sort(r,r+n-1);

    res=a[n-1]-a[0]+1;


    for(i=n-2;i>=n-k;i--)
    {
        res-=r[i];
    }
    cout<<res<<endl;

}

Compilation message (stderr)

stove.cpp: In function 'int main()':
stove.cpp:11:21: warning: unused variable 'brm' [-Wunused-variable]
   11 |     long long n,k,i,brm,res=0;
      |                     ^~~

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