Iterating over lists with loops

A nutrition scientist is working on code to calculate the most magnesium-rich foods.

Their program processes a list of numbers representing milligrams of magnesium in servings of food. The goal of the program is to create a new list that contains only the numbers that represent at least 30% of the recommended daily intake of 360 milligrams.

mgAmounts ← [50, 230, 63, 98, 80, 120, 71, 158, 41]
bestAmounts ← []
mgPerDay ← 360
mgMin ← mgPerDay * 0.3
FOR EACH mgAmount IN mgAmounts
{
    IF (mgAmount ≥ mgMin)
    {
        <MISSING CODE>
    }
}

A line of code is missing, however.

What can replace <MISSING CODE> so that this program will work as expected?

👁️Note that there may be multiple answers to this question.

🤔

This code is written in pseudocode. You can't actually run pseudocode, but we use it for planning programs and for thinking about code independently of specific programming language.

AP CSP exam questions use pseudocode, so it's helpful to become familiar with it.

Here is a reference for the pseudocode used here:

a ← expression

Evaluates expression and assigns the result to the variable a.

list ← [value1, value2, value3]

Creates a list with 3 values. The first value is located at index 1, the second at index 2, the third at index 3.

APPEND(list, item)

Adds item to the end of list, increasing the length of list by 1.

INSERT(list, index, item)

Inserts the item at the 1-based index index, and shifts any items after to the right. The length of the list increases by one.

REMOVE(list, index)

Removes the item at the 1-based index index, and shifts any items after to the left. The length of the list decreases by one.

FOR EACH value IN list
{
   <instructions>
}

Assigns value to the value of each element in list sequentially, starting from the first element and ending with the last element. Executes the code in instructions once for each value.

IF (<condition>)
{
     <instructions 1>
} 
ELSE 
{
     <instructions 2>
}

If the <condition> is true, the first set of instructions is executed. Otherwise, the second set of instructions is executed.

**Relational operators**
Operator	Meaning
`a = b`	Equality
`a ≠ b`	Inequality
`a > b`	Greater than
`a < b`	Less than
`a ≥ b`	Greater than or equal
`a ≤ b`	Less than or equal

AP®︎/College Computer Science Principles

Course: AP®︎/College Computer Science Principles > Unit 3

Problem