Consider the function below to reverse the substring of $S$ from position $i$ to $j.$

If $S$ were defined as a string "abcdefg" then

reverseString $(S,0,$ len$($S$)-1)$ function would return "gfedcba"

reverseString $(S,3,4)$ function would return "abcedfg"

Function in pseudocode:

reversestring $(S,$ int $i,$ int j$)$

if $=S[i]S[i]=S[j]S[j]=(S,i+1,j-1)s$