Question

How to find the Kth smallest number in an unsorted array in Rust

Answer 1

fn find_kth_smallest_number(arr: &mut [i32], k: usize) -> i32 {
    arr.sort();
    
    arr[k - 1]
}

fn main() {
    let mut arr = [42, 90, 21, 30, 37, 81, 45];
    let k = 3;

    let result = find_kth_smallest_number(&mut arr, k);
    println!("{}", result); 
}




/*
run:

37

*/

 

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