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833 B

searching

Instructions

In this exercise you will have to complete the function search. This function receives an array and a key of i32, then it will return the position of the given key in the array. Only arrays with uniques keys will be tested.

Notions

Expected functions

pub fn search(array: &[i32], key: i32) -> Option<usize> {

}

Usage

Here is a program to test your function.

use searching::*;

fn main() {
    let ar = [1, 3, 4, 6, 8, 9, 11];
    let f = search(&ar, 6);
    println!(
        "the element 6 is in the position {:?} in the array {:?}",
        f, ar
    );
}

And its output:

$ cargo run
the element 6 is in the position Some(3) in the array [1, 3, 4, 6, 8, 9, 11]
$