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refactors sliding windows sums

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JasterV 2021-12-02 14:25:21 +01:00
parent 887da98495
commit 6d8fbf818f
1 changed files with 4 additions and 7 deletions
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11
day1/src/main.rs
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@ -19,13 +19,10 @@ fn main() -> Result<()> {
}
fn calculate_sliding_window_sums(depths: &[i32], size: usize) -> Vec<i32> {
let mut sums = vec![];
for i in 0..=depths.len() - size {
let window = &depths[i..i + size];
let sum = window.into_iter().fold(0, |a, &b| a + b);
sums.push(sum)
}
sums
(0..=depths.len() - size)
.map(|i| &depths[i..i + size])
.map(|slice| slice.iter().sum())
.collect()
}
fn count_increases(nums: &[i32]) -> i32 {