Swift. How to find min and max in an array using a loop?

Question

Arrays

I started training, I'm still bad at thinking.
The task sounds like this:
Using the loop, find the minimum and maximum number.

The array itself:
var numbers: [Int] = [1, 2, 3]
numbers.append(4)
numbers.remove(at: 1)

Answer 1

Sorry, but this is a "school" program. They don't decide "homework" for others here. It helps to understand what is not clear.
Show what you did and what didn't work, and we'll help you figure out why it didn't work.

Answer 2

import Foundation

let numbers = [5, 1, 6, 2, 4, 3]
print(numbers.min) // 1
print(numbers.max) // 6

In general, the cycle is not needed here.
But if you really want a loop:

var minNumber: Int = 0
var maxNumber: Int = 0

for number in numbers {
    if number < minNumber {
        minNumber = number
    }
    else if maxNumber < number {
        maxNumber = number
    }
}

print(minNumber) // 1
print(maxNumber) // 6

Or:

var minNumber: Int = 0
var maxNumber: Int = 0

numbers.forEach { number in
    if number < minNumber {
        minNumber = number
    }
    else if maxNumber < number {
        maxNumber = number
    }
}

print(minNumber) // 1
print(maxNumber) // 6