48 lines
858 B
Rust
48 lines
858 B
Rust
/**
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* [383] Ransom Note
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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 can_construct(ransom_note: String, magazine: String) -> bool {
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let mut map = HashMap::new();
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for c in magazine.chars() {
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let entry = map.entry(c).or_insert(0);
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*entry += 1;
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}
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for c in ransom_note.chars() {
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match map.get_mut(&c) {
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Some(entry) => {
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if *entry == 0 {
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return false;
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}
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*entry -= 1;
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},
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None => {
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return false;
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}
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}
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}
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true
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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_383() {}
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}
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