Question

How to multiply two integers represented as strings and return the result also as a string in Rust

Answer 1

fn multiply_strings(num1: &str, num2: &str) -> String {
    // Convert strings to integers
    let n1: i64 = num1.parse().unwrap_or(0);
    let n2: i64 = num2.parse().unwrap_or(0);

    // Perform multiplication
    let result = n1 * n2;

    // Convert result back to string
    result.to_string()
}

fn main() {
    let num1 = "123";
    let num2 = "456";

    println!("Result: {}", multiply_strings(num1, num2));
}

   
    
/*
run:
    
Result: 56088
    
*/

 

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