Problem Statement

Show a nested loop which searches a two-dimensional array filled with random numbers uniformly distributed over

[ 1 , … , 20 ]

{\displaystyle [1,\ldots ,20]}

. The loops iterate rows and columns of the array printing the elements until the value

20

{\displaystyle 20}

is met. Specifically, this task also shows how to break out of nested loops.

Let's start with the solution:

numbers = .array~new()
do i = 1 to 10
    do j = 1 to 10
        numbers[i,j] = random(1, 20)
    end
end

do i = 1 to numbers~dimension(1)
    do j = 1 to numbers~dimension(2)
        say numbers[i,j]
        if numbers[i,j] = 20 then
            leave i
    end
end