meap/meap-code/ch2/ch2-first-steps.rs


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fn main() {
  let a      = 10; // <1>
  let b: i32 = 20; // <2>

  let c = add(a,  b);
  println!("a + b = {}", c);
}

fn add(i: i32, j: i32) -> i32 {
  i + j
}