How to resolve the algorithm Palindrome dates step by step in the Nim programming language

Published on 12 May 2024 09:40 PM
#Nim

How to resolve the algorithm Palindrome dates step by step in the Nim programming language

Table of Contents

Problem Statement

Today   (2020-02-02,   at the time of this writing)   happens to be a palindrome,   without the hyphens,   not only for those countries which express their dates in the   yyyy-mm-dd   format but,   unusually,   also for countries which use the   dd-mm-yyyy   format.

Write a program which calculates and shows the next 15 palindromic dates for those countries which express their dates in the   yyyy-mm-dd   format.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Palindrome dates step by step in the Nim programming language

Source code in the nim programming language

import strformat, times

func digits(n: int): seq[int] =
  var n = n
  while n != 0:
    result.add n mod 10
    n = n div 10

echo "First 15 palindrome dates after 2020-02-02:"
var count = 0
var year = 2021
while count != 15:
  let d = year.digits
  let monthNum = 10 * d[0] + d[1]
  let dayNum = 10 * d[2] + d[3]
  if monthNum in 1..12:
    if dayNum <= getDaysInMonth(Month(monthNum), year):
      # Date is valid.
      echo &"{year}-{monthNum:02}-{dayNum:02}"
      inc count
  inc year

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