euler2.rs

// Solution to Project Euler Problem 2,
// https://projecteuler.net/problem=2
fn main() {
    let mut i = 1;
    let mut j = 2;
    let mut tmp;
    let mut result = 0;

    while j < 4000000 {
        if j%2 == 0 { result += j }
        tmp = j;
        j = i + j;
        i = tmp;
    }
    println!("{}", result);
}