47 lines
1.0 KiB
Rust
47 lines
1.0 KiB
Rust
use std::str::FromStr;
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use std::fs;
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fn main() {
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const FILE_PATH: &str = "input.txt";
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println!("Hi this is the fist day of AOC2022, first we will read the file {}", FILE_PATH);
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let contents = fs::read_to_string(FILE_PATH)
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.expect("Should have been able to read the file");
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println!("The elf with the biggest calories is: {}", get_max_elf(&contents));
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}
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fn get_max_elf(input: &str) -> u32{
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let binding = input.to_owned();
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let input: Vec<&str> = binding.lines().collect();
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let mut elfs = Vec::new();
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let mut ptr: usize = 0;
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elfs.push(0);
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for line in input{
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if line == "" {ptr+=1; elfs.push(0); continue;}
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elfs[ptr] += u32::from_str(line).expect("all content must be numbers");
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}
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*elfs.iter().max().expect("there must be a maximum lol")
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}
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#[cfg(test)]
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mod test {
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use super::*;
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#[test]
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fn it_works() {
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let input = r#"1000
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2000
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3000
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4000
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5000
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6000
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7000
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8000
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9000
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10000"#;
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assert_eq!(get_max_elf(input), 24000);
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}
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} |