Submission #31191

#	Time	Username	Problem	Language	Result	Execution time	Memory
31191		pasa3232	Boxes with souvenirs (IOI15_boxes)	C++14	70 / 100	559 ms	274320 KiB

boxes

#include<bits/stdc++.h>
#include "boxes.h"
using namespace std;
typedef long long ll;

ll n, k, l, data[10000010], lef[10000010], righ[10000010], ans;

long long delivery(int N, int K, int L, int p[]) {
    n=N, k=K, l=L;
    for(int i=0; i<n; i++) data[i+1]=p[i];
    for(ll i=1; i<=n; i++){
        lef[i]=min(l, (data[i]*2));
        if(i>k) lef[i]+=lef[i-k];
    }
    for(ll i=n; i>0; i--){
        righ[i]=min(l, (l-data[i])*2);
        righ[i]+=righ[i+k];
    }
    ans=min(lef[n], righ[1]);
    for(ll i=1; i<n; i++) ans=min(ans, lef[i]+righ[i+1]);
    return ans;
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 15 / 15
• Subtask 4: 15 / 15
• Subtask 5: 20 / 20
• Subtask 6: 0 / 30