Question

How to find sum of the first N even numbers in Rust

Answer 1

fn main() {
    let n = 5;

    // The sum of the first N even numbers is N * (N + 1)
    let sum_even = n * (n + 1);

    println!("The sum of the first {} even numbers is: {}", n, sum_even);
}

// 2 + 4 + 6 + 8 + 10 = 30


/*
run:

The sum of the first 5 even numbers is: 30

*/

 

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