Question

How to convert int array to int number in Rust

Answer 1

fn int_array_to_int_number(arr: &[i32]) -> i32 {
    let mut n = 0;
  
    for &num in arr.iter() {
        n = n * 10 + num;
    }
  
    n
}
  
fn main() {
    let arr = [4, 6, 3, 9, 1, 2];

    println!("{}", int_array_to_int_number(&arr));
}

  
 
/*
run:
 
463912
 
*/

 

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