Remove all repeated Characters in a String

In this blog, sharing the code to remove consecutively repeated characters in a String. Consider a String “allabouttechnologies” . Here, l and t are repeated Characters. So, after applying logic, it will be like “alaboutechnologies“. str=”alllabouttechnologies” ##Sample Stringnewstr=” ##new Blank Stringn=\${#str} ##length of a Sample StringPrevChar=\${str:0:1} ##First Character of a Stringi=1while [[ \$i -le \$n ]] ##Looping Character by CharacterdoNextChar=\${str:\$i:1}if [[ \$PrevChar == \$NextChar ]] ##if two consecutive Character matches, it will remove or ignore the matched one and keep repeated Character oncethenecho “Ignore this Character: “\$NextCharelsenewstr=\${newstr}\${PrevChar} ##merging only non-repeated…

Find first repeated character

In this blog, sharing the code to find the first repeated Character in a string. Consider a String “allabouttechnologies“, here l and t are the repeated Characters but l is the first repeated Character. str=”allabouttechnologies” ## Sample Stringn=\${#str} ##Length of a StringPrevChar=\${str:0:1} ## Set PrevChar as first character of a Stringi=1while [[ \$i -lt \$n ]] ## Looping through each character of a stringdoNextChar=\${str:\$i:1} ## Assigning NextChar equals to current Character in the Loopif [[ \$PrevChar == \$NextChar ]] ## Comparing consecutive Characters of a string in a loop, if…

Count Inversions in Array

Consider an Array (2 4 1 3 5). Inversions are those pairs where a[i]>a[j] and i<j . For above mentioned array, below are the pairs of Inversions. So, total Count Inversions are 3 for this Array.(2 1)(4 1)(4 3)Below is the code for the same using shell scripting. a=(2 4 1 3 5)len=\${#a[@]}lngthminusone=\$(( \$len -1))i=0## This while loop will run inner loop for each element.while [ \$i -lt \$len ] doj=0## This while loop will compare one element with rest of the elements.while [ \$j -lt \$lngthminusone ] doj=\$(( \$j…

TWO ARRAYS ARE EQUAL OR NOT

In this blog, sharing code to check whether two arrays are equal or not . Below is the code explanation in 4 steps. 1. Check the length of each Array, if length is same , then we can compare , else exit.2. If length is same for both the Arrays, then arrange them in either ascending or descending order.3. Once arrays are sorted in an order, then compare element of each Array one by one and if elements are same, increment a dummy counter.4. If the value of counter is…