package main
import (
"fmt"
)
// Function to find the first and last position of an element in a slice
func findFirstAndLastPosition(arr []int, n int) (int, int) {
first, last := -1, -1
// Iterate over the slice
for i := 0; i < len(arr); i++ {
if arr[i] != n {
continue
}
if first == -1 {
first = i
}
last = i
}
return first, last
}
func main() {
// Define the slice
arr := []int{1, 7, 3, 3, 3, 3, 1, 9, 18}
n := 3
// Call the function
first, last := findFirstAndLastPosition(arr, n)
// Output results
if first != -1 {
fmt.Printf("First position = %d, Last position = %d\n", first, last)
} else {
fmt.Println("Not found")
}
}
/*
run:
First position = 2, Last position = 5
*/
