Submission #676436

#	Time	Username	Problem	Language	Result	Execution time	Memory
676436		Essa2006	Simfonija (COCI19_simfonija)	C++14	110 / 110	31 ms	1100 KiB

simfonija

#include<bits/stdc++.h>
using namespace std;
#define int long long 
#define endl '\n'
#define FF first
#define SS second
#define all(a) Pre, Pre+n
#define mod (int)(1000000007)
const int inf = 1e18;
signed main(){
    ios_base::sync_with_stdio(0);cin.tie(0);
    int n, k;
    cin>>n>>k;
    int Pre[n];
    for(int i=0;i<n;i++){
        cin>>Pre[i];
    }
    for(int i=0, a;i<n;i++){
        cin>>a;
        Pre[i]-=a;
    }
    sort(all(Pre));
    int ans=inf;
    for(int i=1;i<n;i++)
        Pre[i]+=Pre[i-1];
    for(int i=0, r=n-k-1, md=(n-k)/2;r<n;i++, r++, md++){
        int val=Pre[md]-(md?Pre[md-1]:0);
        int sum=(md-i+1)*val-(Pre[md]-(i?Pre[i-1]:0))+(r+1?Pre[r]:0)-Pre[md]-val*(r-(md+1)+1);
        ans=min(ans, sum);
    }
    cout<<ans;
}

• Subtask 1: 11 / 11
• Subtask 2: 11 / 11
• Subtask 3: 11 / 11
• Subtask 4: 11 / 11
• Subtask 5: 11 / 11
• Subtask 6: 11 / 11
• Subtask 7: 11 / 11
• Subtask 8: 11 / 11
• Subtask 9: 11 / 11
• Subtask 10: 11 / 11