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a guest Aug 17th, 2019 61 Never
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  1. #![feature(repeat_generic_slice)]
  2.  
  3. fn main() {
  4.     let v: Vec<u8> = [10, 20, 30, 40].repeat(5);
  5.    
  6.     let a: Vec<u8> = v.iter().copied().step_by(4).collect();
  7.     let r: Vec<u8> = v.iter().copied().skip(1).step_by(4).collect();
  8.     let g: Vec<u8> = v.iter().copied().skip(2).step_by(4).collect();
  9.     let b: Vec<u8> = v.iter().copied().skip(3).step_by(4).collect();
  10.    
  11.     println!("{:?}\n", v);
  12.     println!("{:?}", a);
  13.     println!("{:?}", r);
  14.     println!("{:?}", g);
  15.     println!("{:?}", b);
  16. }
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