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use std::env;
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use std::fs;
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pub fn read_file(folder: &str, day: u8) -> String {
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let cwd = env::current_dir().unwrap();
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let filepath = cwd
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.join("src")
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.join(folder)
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.join(format!("day{:02}.txt", day));
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let f = fs::read_to_string(filepath);
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f.expect("could not open input file")
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}
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