RosettaCodeData/Task/File-input-output/Rust/file-input-output-1.rust

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use std::fs::File;
use std::io::{Read, Write};
fn main() {
let mut file = File::open("input.txt").unwrap();
let mut data = Vec::new();
file.read_to_end(&mut data).unwrap();
let mut file = File::create("output.txt").unwrap();
file.write_all(&data).unwrap();
}