package main
import (
"fmt"
"sort"
)
func findKthSmallestNumber(arr []int, k int) int {
sort.Ints(arr)
return arr[k - 1]
}
func main() {
arr := []int{42, 90, 21, 30, 37, 81, 45}
k := 3
result := findKthSmallestNumber(arr, k)
fmt.Println(result)
}
/*
run:
37
*/