danielobo1

fn main() {
    let outer = 10;
    {
        let inner = 20;
        println!("Outer: {}", outer);
        println!("Inner: {}", inner);
    }
    //println!("Inner: {}", inner);
    println!("Outer: {}", outer);
    main_shape();

danielobo1

fn main() {

use std::ops::{Add, Sub, Mul, Div};

trait Numeric {
    fn add(self, rhs: Self) -> Self;
    fn sub(self, rhs: Self) -> Self;
    fn mul(self, rhs: Self) -> Self;
    fn div(self, rhs: Self) -> Self;}