Question

How to check if an integer include specific digits x times in Scala

Answer 1

object IntegerDigitCounter {

  def integerIncludeDigitXTimes(n: Int, xtims: Int, digit: Int): Boolean = {
    var number = n // Make a mutable copy of the number
    var count = 0

    // Count occurrences of the digit in the number
    while (number > 0) {
      if (number % 10 == digit) {
        count += 1
      }
      number /= 10 // Perform integer division
    }

    // Return true if count matches xtims
    count == xtims
  }

  def main(args: Array[String]): Unit = {
    println(integerIncludeDigitXTimes(7097175, 3, 7)) 
    println(integerIncludeDigitXTimes(70975, 3, 7))   
  }
}



/*
run:
   
true
false
 
*/

 

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