43 lines
911 B
Rust
43 lines
911 B
Rust
/**
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* [3046] Split the Array
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*/
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pub struct Solution {}
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// submission codes start here
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use std::collections::HashMap;
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impl Solution {
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pub fn is_possible_to_split(nums: Vec<i32>) -> bool {
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let mut map = HashMap::with_capacity(nums.len());
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for i in nums {
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let entry = map.entry(i).or_insert(0);
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*entry += 1;
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if *entry > 2 {
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return false;
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}
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}
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map.iter()
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.filter_map(|(_, v)| if *v == 1 { Some(()) } else { None })
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.count()
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% 2
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== 0
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}
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}
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// submission codes end
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_3046() {
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assert!(Solution::is_possible_to_split(vec![1, 1, 2, 2, 3, 4]));
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assert!(Solution::is_possible_to_split(vec![4, 4, 9, 10]));
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assert!(!Solution::is_possible_to_split(vec![1, 1, 1, 1]));
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}
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}
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