fun twoSum(arr: IntArray, target: Int): Pair<Int, Int>? {
for (i in arr.indices) {
for (j in i + 1 until arr.size) {
if (arr[i] + arr[j] == target) {
return Pair(i, j) // Return indices as a Pair
}
}
}
return null // Return null if no match found
}
fun main() {
val array1 = intArrayOf(1, 5, 7, 4, 3, 2)
val array2 = intArrayOf(3, 1, 4, 2, 5)
twoSum(array1, 9)?.let { (i, j) ->
println("Indices: ($i, $j), Numbers: (${array1[i]}, ${array1[j]})")
} ?: println("No matching pair found.")
twoSum(array2, 8)?.let { (i, j) ->
println("Indices: ($i, $j), Numbers: (${array2[i]}, ${array2[j]})")
} ?: println("No matching pair found.")
}
/*
run:
Indices: (1, 3), Numbers: (5, 4)
Indices: (0, 4), Numbers: (3, 5)
*/
