The Weekly Challenge

10. TASK #2: Travel Expenditure

HEADLINES

Welcome to the Week #219 of The Weekly Challenge.

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Thank you, BarrOff for introducing new guest language V Lang.

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RECAP

Quick recap of The Weekly Challenge - 218 by Mohammad S Anwar.

PERL REVIEW

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RAKU REVIEW

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CHART

Please take a look at the charts showing interesting data.

I would like to THANK every member of the team for their valuable suggestions. Please do share your experience with us.

NEW MEMBERS

Andrea Piseri, an experienced BQN hacker joined the Team PWC.

Please find out How to contribute?, if you have any doubts.

Please try the excellent tool EZPWC created by respected member Saif Ahmed of Team PWC.

GUESTS

Please check out the guest contributions for the Week #218.

Please find past solutions by respected guests. Please share your creative solutions in other languages.

Task 1: Sorted Squares

Submitted by: Mohammad S Anwar

You are given a list of numbers.

Write a script to square each number in the list and return the sorted list, increasing order.

Example 1

Input: @list = (-2, -1, 0, 3, 4)
Output: (0, 1, 4, 9, 16)

Example 2

Input: @list = (5, -4, -1, 3, 6)
Output: (1, 9, 16, 25, 36)

Task 2: Travel Expenditure

Submitted by: Mohammad S Anwar

You are given two list, @costs and @days.

The list @costs contains the cost of three different types of travel cards you can buy.

For example @costs = (5, 30, 90)

Index 0 element represent the cost of  1 day  travel card.
Index 1 element represent the cost of  7 days travel card.
Index 2 element represent the cost of 30 days travel card.

The list @days contains the day number you want to travel in the year.

For example: @days = (1, 3, 4, 5, 6)

The above example means you want to travel on day 1, day 3, day 4, day 5 and day 6 of the year.

Write a script to find the minimum travel cost.

Example 1:

Input: @costs = (2, 7, 25)
       @days  = (1, 5, 6, 7, 9, 15)
Output: 11

On day 1, we buy a one day pass for 2 which would cover the day 1.
On day 5, we buy seven days pass for 7 which would cover days 5 - 9.
On day 15, we buy a one day pass for 2 which would cover the day 15.

So the total cost is 2 + 7 + 2 => 11.

Example 2:

Input: @costs = (2, 7, 25)
       @days  = (1, 2, 3, 5, 7, 10, 11, 12, 14, 20, 30, 31)
Output: 20

On day 1, we buy a seven days pass for 7 which would cover days 1 - 7.
On day 10, we buy a seven days pass for 7 which would cover days 10 - 14.
On day 20, we buy a one day pass for 2 which would cover day 20.
On day 30, we buy a one day pass for 2 which would cover day 30.
On day 31, we buy a one day pass for 2 which would cover day 31.

So the total cost is 7 + 7 + 2 + 2 + 2 => 20.

Last date to submit the solution 23:59 (UK Time) Sunday 4th June 2023.