examples/13.src


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let main = () => i64 {
    /* Iterative Fibonacci using while loop. */
    let fibonacci_iter = (n: i64) => i64 {
        let a = 0;
        let b = 1;
        let i = 0;
        while i < n {
            let temp = b;
            b = a + b;
            a = temp;
            i = i + 1;
        };
        return a;
    };

    /* Recursive GCD using Euclid's algorithm. */
    let gcd = (a: i64, b: i64) => i64 {
        if b == 0 {
            return a;
        };
        return gcd(b, a % b);
    };

    let fib_val = fibonacci_iter(10);
    print(fib_val);

    let gcd_val = gcd(48, 18);
    print(gcd_val);

    return 0;
};