abc081_b.go

package main

import "fmt"

func main() {
	var n int
	fmt.Scan(&n)
	a := make([]int, n)
	for i := 0; i < n; i++ {
		fmt.Scan(&a[i])
	}

	res := 0
	loop := true
	for {
		for i := 0; i < len(a); i++ {
			if a[i] == 0 || a[i]%2 == 1 {
				loop = false
				break
			} else {
				a[i] = a[i] / 2
			}
		}
		if !loop {
			break
		}
		res++
	}
	fmt.Printf("%v", res)
}