37 lines
826 B
Rust
37 lines
826 B
Rust
use std::fs;
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fn main() {
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let file = fs::read_to_string("day01.in").unwrap();
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let mut nums: Vec<u32> = vec![];
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for line in file.split('\n') {
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if line != "" {
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nums.push(u32::from_str_radix(line, 10).unwrap());
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}
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}
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let count_a = count_inc(&nums);
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let mut nums2: Vec<u32> = vec![];
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for (i, _) in nums.iter().enumerate() {
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if i + 2 < nums.len() {
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nums2.push(nums[i..i + 3].iter().sum());
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}
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}
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let count_b = count_inc(&nums2);
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println!("Part 1: {}", count_a);
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println!("Part 2: {}", count_b);
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}
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fn count_inc(input: &Vec<u32>) -> usize {
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let mut count = 0;
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let mut prev: u32 = 0;
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for num in input.iter() {
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if num > &prev && prev != 0 {
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count += 1;
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}
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prev = *num;
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}
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count
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}
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