Is it possible to add two numbers whose power is the iterator in for loop in Kotlin without using po-CodePudding

Programming Language: KOTLIN

I'm trying to make a function which adds two numbers in the following way.. a^i b^i where "i" would be the iterator in for loop. So I want the i to range from 1 to 10 and print the result one by one like this... for example if I give the values as a=1 & b=2 then the result must be calculated as.. a^1 b^1= 1^1 2^1 which gives 3 so print the result. a^2 b^2= 1^2 2^2 which gives 6 and print the result. etc., repeating the process until i becomes 10. so I tried the following code and it only prints the result of initial values.

fun main(){
    println(test(22,33))
}
fun test(a:Int,b:Int):Int{
    var result1=1
    var result2=1
    var result3=result1 result2
     for(i in 1..10){
         result1*=a
         result2*=b
         result3=a b
         println(result3)
         }
     return result3
   }

CodePudding user response：

In this line of your code:

result3 = a   b

you are not adding the result of a b to result3, you are assigning it. It should look like this:

result3  = a   b

Shorter version:

fun test(a: Int, b: Int): Int {
  var result = 0
  for (i in 1..10) {
    result  = i * (a   b)
  }
  return result
}

Shortest version:

fun test(a: Int, b: Int) = (1..10).sumOf { it * (a   b) }

CodePudding user response：

You were only adding the parameters of your function for result3. This works though:

fun addWithIteratedPower(a: Int, b: Int) : Int {
    var resultA = 1
    var resultB = 1
    var combinedResult = 0
    for(i in 1..10){
        resultA *= a
        resultB *= b
        combinedResult = resultA   resultB
        println(combinedResult)
    }
    return combinedResult
}

And here's a test that validates it:

@Test
fun `should return final combined result`(){
    val oneAndTwoToPowerOfTenAdded = (1.0.pow(10)   2.0.pow(10)).toInt()
    assertThat(addWithIteratedPower(1, 2)).isEqualTo(oneAndTwoToPowerOfTenAdded)
}