23 lines
707 B
Plaintext
23 lines
707 B
Plaintext
fn forward_difference(input_seq: Vec<i32>, order: u32) -> Vec<i32> {
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match order {
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0 => input_seq,
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1 => {
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let input_seq_iter = input_seq.into_iter();
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let clone_of_input_seq_iter = input_seq_iter.clone();
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input_seq_iter.zip(clone_of_input_seq_iter.skip(1)).map(|(current, next)| next - current).collect()
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},
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_ => forward_difference(forward_difference(input_seq, order - 1), 1),
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}
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}
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fn main() {
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let mut sequence = vec![90, 47, 58, 29, 22, 32, 55, 5, 55, 73];
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loop {
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println!("{:?}", sequence);
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sequence = forward_difference(sequence, 1);
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if sequence.is_empty() {
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break;
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}
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}
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}
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