18 lines
627 B
Rust
18 lines
627 B
Rust
use std::fs::OpenOptions;
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use std::io::Write;
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pub fn main() {
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let mut file = OpenOptions::new().create(true).truncate(true).write(true).open("./cisla.txt").unwrap();
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let mut cisla = Vec::with_capacity(21);
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for i in 0..20 {
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let mut input = String::new();
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println!("Zadaj cislo {} z 20", i + 1);
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std::io::stdin().read_line(&mut input).unwrap();
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let inp: f64 = input.trim().parse().unwrap();
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cisla.push(inp);
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}
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let avg = cisla.iter().sum::<f64>() / 20f64;
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println!("priemer: {avg}");
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cisla.push(avg);
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file.write_all(cisla.iter().map(|f| f.to_string()).collect::<Vec<String>>().join("\n").as_bytes()).unwrap()
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}
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