Submission #392325

#	Time	Username	Problem	Language	Result	Execution time	Memory
392325		wildturtle	Stove (JOI18_stove)	C++14	100 / 100	60 ms	3224 KiB

stove

#include<bits/stdc++.h>
#define ll long long
#define f first
#define sc second
using namespace std;
ll a,b,c,d,i,e,f,g,n,m,k,l,idx,B[500005],le,ri,mid,ans;
ll A[500005];
vector <ll> v;
int main() {
    cin>>n>>k;
    for(ll i=1;i<=n;i++) {
        cin>>A[i];
    }
    if(n==1) { cout<<1; return 0; }
    sort(A+1,A+1+n);
    for(ll i=1;i<n;i++) {
        v.push_back(A[i+1]-A[i]-1);
    }
    sort(v.begin(),v.end());
    g=v.size()-k+1;
    for(ll i=v.size()-1;i>=max(f,g);i--) {
        a+=v[i];
    }
    cout<<(A[n]+1)-A[1]-a;
}

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