Question

How to remove a pair of the same adjacent characters from a string in Kotlin

Answer 1

fun removeAdjacentPair(s: String): String {
    var str = s
    var i = 0
    while (i < str.length - 1) {
        if (str[i] == str[i + 1]) {
            str = str.substring(0, i) + str.substring(i + 2)
            if (i != 0) i--
        } else {
            i++
        }
    }
    
    return str
}

fun main() {
    var s = "aabcccdeeffffgac"
    
    s = removeAdjacentPair(s)
    
    println(s)
}


 
 
/*
run:
   
bcdgac
   
*/

 

70+ SQL courses for beginners and professionals