Submission #1307645

#	Time	Username	Problem	Language	Result	Execution time	Memory
1307645		LBP139	Stove (JOI18_stove)	C++20	0 / 100	0 ms	332 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;
    int r=0;
    vector<int>a(n);
    for(int i=0;i<n;i++){
        int t;
        cin>>t;
        a[i]=t;
    }
    sort(a.begin(),a.end());
    for(int i=0;i<n;i++){
        if(a[i]>s){
            if(s==1){
                r=r-a[i];
            }
            else{
                int x=a[i]-s;
                v.push_back(x);
                w++;
            }
        }
        s=a[i];
    }
    r+=s;
    sort(v.begin(),v.end());
    for(int i=w-1;i>=0;i--){
        if(k>1){
            r=r-v[i]+1;
            k--;
        }
    }
    cout<<r<<endl;
    return 0;
}

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