How to resolve the algorithm Last Friday of each month step by step in the J programming language

Published on 12 May 2024 09:40 PM
#J

How to resolve the algorithm Last Friday of each month step by step in the J programming language

Table of Contents

Problem Statement

Write a program or a script that returns the date of the last Fridays of each month of a given year. The year may be given through any simple input method in your language (command line, std in, etc).

Example of an expected output:

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Last Friday of each month step by step in the J programming language

Source code in the j programming language

require 'dates'
last_fridays=: 12 {. [: ({:/.~ }:"1)@(#~ 5 = weekday)@todate (i.366) + todayno@,&1 1


   last_fridays 2012
2012  1 27
2012  2 24
2012  3 30
2012  4 27
2012  5 25
2012  6 29
2012  7 27
2012  8 31
2012  9 28
2012 10 26
2012 11 30
2012 12 28

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