Nested conditions in Rust - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to check if a number is positive.

Rust

let num = 5;
if num [1] 0 {
    println!("Positive number");
}

Drag options to blanks, or click blank then click option'

A<

B>

C==

D<=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<' instead of '>' will check for negative numbers.

Using '==' will only check if the number is zero.

The condition num > 0 checks if the number is positive.

2fill in blank

medium

Complete the code to check if a number is between 1 and 10 (inclusive).

Rust

let num = 7;
if num >= 1 && num [1] 10 {
    println!("Number is between 1 and 10");
}

Drag options to blanks, or click blank then click option'

A<=

B>

C==

D<

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<' excludes 10 from the range.

Using '>' or '==' does not check the upper bound correctly.

The condition num <= 10 ensures the number is at most 10.

3fill in blank

hard

Fix the error in the nested condition to print "Valid" if x is positive and less than 100.

Rust

let x = 50;
if x > 0 {
    if x [1] 100 {
        println!("Valid");
    }
}

Drag options to blanks, or click blank then click option'

A>=

B<=

C<

D==

Attempts:

3 left

💡 Hint

Common Mistakes

Using '<=' includes 100, which is not intended.

Using '>=' or '==' will not check the correct range.

The inner condition x < 100 checks if x is less than 100.

4fill in blank

hard

Fill both blanks to create a nested condition that prints "In range" if y is between 10 and 20 (exclusive).

Rust

let y = 15;
if y [1] 10 {
    if y [2] 20 {
        println!("In range");
    }
}

Drag options to blanks, or click blank then click option'

A>

B>=

C<

D<=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '>=' or '<=' includes the boundary values.

Mixing up the operators will cause incorrect range checks.

The conditions y > 10 and y < 20 check if y is strictly between 10 and 20.

5fill in blank

hard

Fill all three blanks to create a nested condition that prints "Valid score" if score is between 50 and 100 (inclusive) and is even.

Rust

let score = 80;
if score [1] 50 {
    if score [2] 100 {
        if score % 2 [3] 0 {
            println!("Valid score");
        }
    }
}

Drag options to blanks, or click blank then click option'

A>=

B<=

C==

D!=

Attempts:

3 left

💡 Hint

Common Mistakes

Using '>' or '<' excludes boundary values.

Using '!=' instead of '==' for even check causes wrong results.

The conditions check if score is at least 50, at most 100, and even (remainder 0 when divided by 2).