Submission #370532

#	Time	Username	Problem	Language	Result	Execution time	Memory
370532		Fysty	Stove (JOI18_stove)	C++17	100 / 100	51 ms	3192 KiB

stove

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll,ll> pll;
#define rep(i,n) for(int i=0;i<n;i++)
#define rep1(i,n) for(int i=1;i<n;i++)
#define F first
#define S second
#define pb push_back
int main()
{
    ll n,k;
    cin>>n>>k;
    vector<ll> a(n),tmp;
    rep(i,n) cin>>a[i];
    ll tot=a[n-1]+1-a[0];
    rep(i,n-1)
    {
        tmp.pb(a[i+1]-a[i]-1);
    }
    sort(tmp.begin(),tmp.end(),greater<ll>());
    rep(i,k-1) tot-=tmp[i];
    cout<<tot;
}

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