27 lines
775 B
Rust
27 lines
775 B
Rust
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use std::collections::HashSet;
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fn create_operator_set_recurse(
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operators_permutation_set: &mut HashSet<Vec<bool>>,
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operators: Vec<bool>,
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) {
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operators_permutation_set.insert(operators.clone());
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if !operators.contains(&false) {
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return;
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}
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for i in 0..operators.len() {
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if operators[i] {
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continue;
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}
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let mut new_operators = operators.clone();
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new_operators[i] = true;
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create_operator_set_recurse(operators_permutation_set, new_operators);
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}
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}
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pub fn create_operator_set(num_of_operators: usize) -> HashSet<Vec<bool>> {
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let mut operator_sets: HashSet<Vec<bool>> = HashSet::new();
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create_operator_set_recurse(&mut operator_sets, vec![false; num_of_operators]);
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operator_sets
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}
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