Submission #302998

#	Time	Username	Problem	Language	Result	Execution time	Memory
302998		noob_c0de	Stove (JOI18_stove)	C++17	100 / 100	22 ms	2304 KiB

stove

#include<bits/stdc++.h>
using namespace std;
const int mxn=1e5+3;
int n,k;
int a[mxn];
vector<int> diff;
signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    cin>>n>>k;
    for (int i=0;i<n;i++) cin>>a[i];
    for (int i=0;i<n-1;i++)
    {
        diff.push_back(a[i+1]-a[i]);
    }
    sort(diff.rbegin(),diff.rend());
    int ans=a[n-1]-a[0]+1;
    for (int i=0;i<min((int)diff.size(),k-1);i++)
    {
        ans-=diff[i]-1;
    }
    cout<<ans;
    return 0;
}

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