21 lines
671 B
Rust
21 lines
671 B
Rust
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impl Solution {
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pub fn is_valid(s: String) -> bool {
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let mut stack = vec![];
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s.chars()
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.all(|chr| match chr {
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'(' | '{' | '[' => {
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stack.push(chr);
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true
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},
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_ => {
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let opened = stack.pop()
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.unwrap_or(' ');
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// Hacky way to check if the brackets match. Not scalable, but works here.
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if chr as u8 / 10 != opened as u8 / 10 {
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return false;
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}
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true
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}
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}) && stack.len() == 0
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}
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}
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