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  1. Prepare
  2. Linux Shell
  3. Arrays in Bash
  4. Lonely Integer - Bash!
  5. Discussions

Lonely Integer - Bash!

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198 Discussions

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  • rahuljindal157
     + 0 comments

    using the concept of XOR

    #!/bin/bash

read a
read -a arr
count="${#arr[@]}"
ans="${arr[0]}"


for((i=1;i<count;i++));do
    (( ans= ans ^ "${arr[i]}" ))
done

echo "$ans"

  • holger_achtziger
     + 0 comments

    !/bin/bash

    read -r n read -r line

    echo "$line" | tr " " "\n" | sort | uniq -u

  • meghanlyle4
     + 0 comments

    read N read m echo $m | tr ' ' '\n' > file.txt sort file.txt | uniq -u

  • I_AM_JD
     + 1 comment

    tr " " "\n" | tail +2 | sort | uniq -u tr is used so each array element in new line for further processing tail is used to skip 1st line which contain total no. of array elements sort for uniq cmd to work as desired uniq -u print only the uniq element

  • scarab_march6116
     + 0 comments
    read N
readarray numbers
printf "%s\n" ${numbers[@]} | sort -rn | uniq -u