제출 #1210638

#제출 시각아이디문제언어결과실행 시간메모리
1210638m5588ohammed선물상자 (IOI15_boxes)C++20
10 / 100
0 ms328 KiB
#include "boxes.h"
#include <bits/stdc++.h>
using namespace std;
int n,k,l;
long long dp[10000001],dp2[10000001];
long long delivery(int N, int K, int L, int p[]) {
    n=N,k=K,l=L;
    sort(p,p+n);
    for(int i=0;i<n;i++){
        dp[i]=p[i]*2;
        if(i>=k) dp[i]+=dp[i-k];
    }
    for(int i=n-1;i>=0;i--){
        dp2[i]=(l-p[i])*2;
        if(i+k<n) dp2[i]+=dp2[i+k];
    }
    long long ans=1e18;;
    for(int i=0;i<n-1;i++){
        ans=min(ans,dp[i]+dp2[i+1]);
    }
    // cout<<"YESs :";
    // for(int i=0;i<n;i++) cout<<dp[i]<<" ";
    // cout<<endl;
    // cout<<"YES :";
    // for(int i=0;i<n;i++) cout<<dp2[i]<<" ";
    // cout<<endl;
    ans=min(ans,dp[n-1]);
    return ans;
}
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