Submission #791795

#	Time	Username	Problem	Language	Result	Execution time	Memory
791795		jasmin	Boxes with souvenirs (IOI15_boxes)	C++17	100 / 100	479 ms	293852 KiB

boxes

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

const long long INF=LLONG_MAX;

long long delivery(int n, int k, int l, int p[]) {
    
    vector<long long> left(n+1);
    left[0]=0;
    for(int i=0; i<n; i++){

        long long distance = min(p[i], l-p[i]);
        left[i+1] = left[max(0, i+1-k)] + distance + p[i];
    }

    vector<long long> right(n+1);
    right[0]=0;
    for(int i=0; i<n; i++){

        long long distance = min(p[n-1-i], l-p[n-1-i]);
        right[i+1] = right[max(0, i+1-k)] + distance + l-p[n-1-i];
    }


    long long ans=INF;
    for(int i=0; i<=n; i++){

        ans = min(ans, left[i] + right[n-i]);
    }

    return ans;
}

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