Question

How to multiply two numbers without using the multiple operator (*) in Rust

Answer 1

pub fn multiply(a: i32, b: i32) -> i32 {
    let mut mul = 0;

    for _ in 1..=a {
        mul += b;
    }

    mul
}

fn main() {
    let a = 4;
    let b = 9;

    println!("{} * {} = {}", a, b, multiply(a, b));
}



  
/*
run:

4 * 9 = 36

*/

 

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