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16 lines
400 B
16 lines
400 B
7 months ago
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use std::error::Error;
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use std::io::{self, BufRead, Write};
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fn main() -> Result<(), Box<dyn Error>> {
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let stdin = io::stdin();
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let mut stdin = stdin.lock();
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let mut stdout = io::BufWriter::new(io::stdout());
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let mut line = String::new();
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while stdin.read_line(&mut line)? > 0 {
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stdout.write_all(line.to_uppercase().as_bytes())?;
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line.clear();
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}
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Ok(())
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}
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