How to resolve the algorithm Determine if a string has all unique characters step by step in the Nim programming language

Published on 12 May 2024 09:40 PM
#Nim

How to resolve the algorithm Determine if a string has all unique characters step by step in the Nim programming language

Table of Contents

Problem Statement

Given a character string   (which may be empty, or have a length of zero characters):

Use (at least) these five test values   (strings):

Show all output here on this page.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Determine if a string has all unique characters step by step in the Nim programming language

Source code in the nim programming language

import unicode, strformat

proc checkUniqueChars(s: string) =

  echo fmt"Checking string ""{s}"":"
  let runes = s.toRunes
  for i in 0..<runes.high:
    let rune = runes[i]
    for j in (i+1)..runes.high:
      if runes[j] == rune:
        echo "The string contains duplicate characters."
        echo fmt"Character {rune} ({int(rune):x}) is present at positions {i+1} and {j+1}."
        echo ""
        return
  echo "All characters in the string are unique."
  echo ""

const Strings = ["",
                 ".",
                 "abcABC",
                 "XYZ ZYX",
                 "1234567890ABCDEFGHIJKLMN0PQRSTUVWXYZ",
                 "hétérogénéité",
                 "🎆🎃🎇🎈",
                 "😍😀🙌💃😍🙌",
                 "🐠🐟🐡🦈🐬🐳🐋🐡"]

for s in Strings:
  s.checkUniqueChars()

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