YannAhlgrim
49 lines
1.4 KiB
Rust
49 lines
1.4 KiB
Rust
use std::fs;
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fn main() {
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// let input = [
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// "11-22",
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// "95-115",
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// "998-1012",
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// "1188511880-1188511890",
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// "222220-222224",
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// "1698522-1698528",
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// "446443-446449",
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// "38593856-38593862",
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// "565653-565659",
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// "824824821-824824827",
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// "2121212118-2121212124",
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// ];
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let input: String =
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fs::read_to_string("input.txt").expect("text file cannot be read to string");
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let input = input.split(",");
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let mut sum: i64 = 0;
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for range in input {
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if range == "" {
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break;
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}
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let range = range.replacen("\n", "", 1);
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let numbers = range.split("-");
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let numbers: Vec<&str> = numbers.collect();
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let start_number: i64 = numbers[0].parse::<i64>().unwrap();
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let end_number: i64 = numbers[1].parse::<i64>().unwrap();
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for n in start_number..(end_number + 1) {
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let n_string: String = n.to_string();
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if n_string.len() % 2 == 0 {
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let first_slice = &n_string[..(n_string.len() / 2)];
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let second_slice = &n_string[(n_string.len() / 2)..];
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if first_slice == second_slice {
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println!("Found an id: {first_slice}{second_slice}");
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sum += i64::from(n);
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continue;
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}
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}
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}
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}
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println!("The sum of all invalid ids: {sum}");
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}
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