0251~0300

/**
 * @param num1: An integer
 * @param num2: An integer
 * @param num3: An integer
 * @return: an interger
 */
func MaxOfThreeNumbers(num1 int, num2 int, num3 int) int {
    // write your code here
    max1 := Max(num1, num2)
    max2 := Max(max1, num3)
    return max2
}
func Max(num1, num2 int) int {
    max := 0
    if num1 > num2 {
        max = num1
    } else {
        max = num2
    }
    return max
}

/**
 * @param nums: the list of numbers
 * @return: return the maximum number.
 */
import "sort"
func MaxNum(nums []int) int {
    // write your code here
    sort.Ints(nums)
    return nums[len(nums) - 1]
}

/**
 * @param n: an integer
 * @return: return all prime numbers within n.
 */
func Prime(n int) []int {
    // write your code here
    slice := []int{}
    for i := 2; i <= n; i++ {
        if isPrime(i) {
            slice = append(slice, i)
        }
    }
    return slice
}
func isPrime(n int) bool {
    if n < 2 {
        return false
    }
    for i := 2; i <= n/i; i++ {
        if n%i == 0 {
            return false
        }
    }
    return true
}