Submission #1307626

#	Time	Username	Problem	Language	Result	Execution time	Memory
1307626		LBP139	Stove (JOI18_stove)	C++20	0 / 100	1 ms	568 KiB

stove

#include<bits/stdc++.h>
#define int long long
using namespace std;
signed main(){
    int n,k;
    cin>>n>>k;
    int s=1;
    vector<int>v;
    int w=0;
    for(int i=0;i<n;i++){
        int t;
        cin>>t;
        if(t>s){
            int x=t-s;
            v.push_back(x);
            w++;
        }
        s=t;
    }
    sort(v.begin(),v.end());
    for(int i=w-1;i>=0;i--){
        if(k>1){
            s=s-v[i]+1;
            k--;
        }
    }
    cout<<s<<endl;
    return 0;
}

• Subtask 1: 0 / 20
• Subtask 2: 0 / 30
• Subtask 3: 0 / 50