43 lines
1020 B
Rust
43 lines
1020 B
Rust
mod arr;
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mod list;
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struct Solution {}
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impl Solution {
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pub fn min_insertions(s: String) -> i32 {
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let s = s.as_bytes();
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let mut emp_s = vec![];
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let mut ans = 0;
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let mut i = 0;
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while i < s.len() {
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if s[i] == b'(' {
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emp_s.push(b'(');
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} else {
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if i + 1 >= s.len() || s[i + 1] != b')' {
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ans += 1;
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} else {
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i += 1;
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}
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emp_s.push(b')');
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}
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i += 1;
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}
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let mut cnt = 0;
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for (i, c) in emp_s.iter().enumerate() {
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if *c == b'(' {
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if cnt < 0 {
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ans += -cnt;
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cnt = 0;
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}
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cnt += 1;
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} else {
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cnt -= 1;
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}
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}
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if cnt < 0 { ans - cnt } else { ans + cnt * 2 }
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}
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}
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fn main() {
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println!("{:?}", Solution::min_insertions("()()))((".to_string()));
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}
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