/*
Removes the bit at the given position and shifts all higher bits right.
*/
fun removeBitAndShift(number: Int, position: Int): Int {
/*
number = 22 (10110)
position = 2 (0 = LSB)
Bits: 1 0 1 1 0
^ remove this bit
left = bits above removed bit
right = bits below removed bit
result = (left << position) | right
*/
val left: Int = number shr (position + 1) // bits above removed bit
val right: Int = number and ((1 shl position) - 1) // bits below removed bit
return (left shl position) or right // merge shifted left + right
}
/*
Prints a 32-bit binary representation of an integer.
*/
fun printBinary(value: Int) {
/*
Uses:
value.toString(2) → binary string
padStart(32, '0') → pad to 32 bits
chunked(4) → group into 4-bit chunks
*/
val binary: String = value.toString(2).padStart(32, '0')
val grouped: String = binary.chunked(4).joinToString(" ")
println(grouped)
}
fun main() {
val number: Int = 22
val position: Int = 2 // remove bit 2 (0 = LSB)
println("Original number in binary:")
printBinary(number)
val result: Int = removeBitAndShift(number, position)
println()
println("Number after removing bit $position and shifting remaining bits:")
printBinary(result)
println()
println("Result as integer: $result")
}
/*
run:
Original number in binary:
0000 0000 0000 0000 0000 0000 0001 0110
Number after removing bit 2 and shifting remaining bits:
0000 0000 0000 0000 0000 0000 0000 1010
Result as integer: 10
*/
