Submission #719903

#	Time	Username	Problem	Language	Result	Execution time	Memory
719903		AirCircles	Stove (JOI18_stove)	C++17	100 / 100	46 ms	2068 KiB

stove

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

#define PB push_back
typedef vector<int> vec;

int main(){
    int n,k;
    cin>>n>>k;
    vec dn(n);
    for(int i=0;i<n;i++){
        cin>>dn[i];
    }
    vec dm(n-1);
    for(int i=0;i<n-1;i++){
        dm[i]=dn[i+1]-dn[i]-1;
    }
    sort(dm.rbegin(),dm.rend());
    int s=dn[n-1]-dn[0]+1;
    for(int i=0;i<k-1;i++){
        s-=dm[i];
    }
    cout<<s<<endl;
    return 0;
}

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