Small exercises

Build short programs using only ideas from the Learn lessons. Hints are below each task; solutions are collapsed.

Exercise A — Two lines

Print your name, then print the number 1.

Hint

Use two say instructions. Numbers do not need quotes. Text does.

One solution

say("Ada");
say(1);

Exercise B — Age check

Store an age in a variable. If it is at least 18, print Adult. Otherwise print Young.

Hint

Lesson 3: if / else, type int.

One solution

age: int = 20;

if age >= 18 {
    say("Adult");
} else {
    say("Young");
}

Exercise C — Countdown

Print 3, then 2, then 1 using a while loop.

Hint

Start at 3. While the number is at least 1, print it, then subtract 1.

One solution

n: int = 3;

while n >= 1 {
    say(n);
    n = n - 1;
}

Exercise D — Greeter function

Write a function greet that takes a str name and prints Hello, followed by that name. Call it with "Echo".

Hint

Lesson 5: fn greet(name: str) { ... } then greet("Echo");.

One solution

fn greet(name: str) {
    say("Hello,", name);
}

greet("Echo");

Exercise E — First list item

Create a list of three numbers. Print only the first item, then print the whole list after pushing 99.

One solution

nums: list = [10, 20, 30];
say(nums[0]);
nums.push(99);
say(nums);

Next

→ Mini projects