🚀 #RustChallenge

Put your Rust skills to the test with a modified FizzBuzz:

1️⃣ Divisible by 3: Print "Fizz"
2️⃣ Divisible by 5: Print "Buzz"
3️⃣ Divisible by both: Print "FizzBuzz"
4️⃣ Else: Print the number

Use `match`, `if let`, and loops to solve. Let's see your solutions!

✨ Rust challenge explained

Ans: C. It never reaches the prints statement. It goes in an infinite loop 😲

But, how? Let's break down

👉 End value is 0xfffffff which is 268435455.0. it is not very important here. So let's remove it and simplify the code with a constant 20,000,000.0 end value

👉 `f` value stops increasing(round upped) after value 16777216.0 when you add just 1.0 🤯

👉 To know why,you have to understand how the f32 is stored. Float is not stored as simple as integer

👉 f32 uses IEEE 754 format to store the value

👉 Larger f32 number loses accuracy

In a 32 bit float (any language not just rust):

👉 1st bit is used for sign identification (positive or negative)
👉 Following 8 bits used for exponent
👉 Next 23 bits used for storing mantissa 🙃

You can see more here, how it is calculated
https://youtu.be/8afbTaA-gOQ

(Continued 👇)

#rustlang #RustChallenge #programmers #rust

🦀 an Interesting #RustChallenge given by @sombrastudios

What will happen?

A) prints "Hello World" instantly
B) prints "Hello World" after 3 seconds
C) never reaches the print statement
D) Compilation error

#rustlang #rust

@chrisg
That's possibly the side effects of my #RustChallenge series 😂. i set traps in that.

But in #RustQuiz, I don't do. It will be simple 😉

🦀 #RustChallenge

What will be the result?

A. Runtime error
B. Compile time error
C. It won't give an error and does nothing

Credits : @musicmatze

#rustlang #rust

#RustChallenge:

What is the output?

A. It will print Kernel

B. It will give a compilation error (explain why)

C. It will give a runtime error (explain why)

#rustlang #rust

#RustChallenge

What is the output?

A.
[1, 3]
[3,0]

B.
[1,3]
[3,1]

C.
[3,0]
[3,0]

D.
[3,0]
[3,1]

#rustlang #rust

Vote here 👇

🦀 #RustQuiz

What is the output of this?

A. Error
B. RustJsPython
C. (Rust, Js, Python)
D. Rust

(Not hard/tricky or unique as #RustChallenge, just simple quizzes)

#rustlang #rustquiz #rust #rusttips #LearnRust

🦀 #RustChallenge

Will it print "Yes"?

A. Yes
B. No
C. It will give error

#rustlang #rust

🦀 #RustChallenge

What will be the outcome?

1. Both runs and gives the output

2. B gives output and A gives overflow error

3. A gives output and B gives error

4. Both gives error

#rust #rustlang #rustquiz
Vote here 👇

#RustChallenge

What is the result?

A. Prints 1 (explain how)
B. Prints 2 (explain how)
C. Error (explain why)

Credits to @wcrichton(twitter)

#rustlang #rustquiz #rust

#RustChallenge

🦀 Fix the following code

🪲 Error: "cannot borrow `x` as mutable because it is also borrowed as immutable"

Playground link:
https://play.rust-lang.org/?version=stable&mode=debug&edition=2021&gist=b13fc771b4c2ea39d490375c54fd5a4d

👉 You can answer either with fixed playground link or just explanation (No poll)

#rustlang #rust #LearnRust

🦀 #RustChallenge

What is the result?

A.
-10
100

B.
10
100

C.
-10
+100

D.
+10
+100

#rustlang #rust

Vote here 👇

🦀 #RustChallenge

What is the result?

A. Error
C. Prints 2 4 6 8
D. Prints 2
4. Prints 2 6 8

#rustlang #rust

Vote here 👇

🦀 #RustChallenge

What is the result?

A. Error
C. Prints 2 4 6 8
D. Prints 2
4. Prints 2 6 8

#rustlang #rust

Vote here 👇

🦀 #RustChallenge

What is the result?

A. Error
C. Prints 2 4 6 8
D. Prints 2
4. Prints 2 6 8

#rustlang #rust

#RustChallenge

Simple rust challenge for you

What is the result?

A. Prints AstraKernel
B. Panics with error AstraKernel
C. Compilation error
D. Prints nothing

#rustlang #rust

Vote here 👇

🦀 #RustChallenge

What is the result?

A.
false
false
false
false

B.
false
false
true
false

C.
true
true
true
true

D.
true
false
true
true

#rustlang #rust

#RustChallenge

(Sorry had to delete and recreate because didn't include the condition)

👉 What will be output if you compile and run in "release" mode?

A.  Error
B. It prints
[a value] true
[a value] true

C. It prints
[a value] false
[a value] false

D. It prints
[a value]  false
[a value]  true

#rustlang vote here 👇

#RustChallenge

I will share the source after few hours. If you saw the source, please don't give spoiler

A. Error
B. It prints
[a value] true
[a value] true

C. It prints
[a value] false
[a value] false

C. It prints
[a value] false
[a value] true

#rustlang vote 👇