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-rw-r--r--longest_valid_parentheses.cpp41
1 files changed, 0 insertions, 41 deletions
diff --git a/longest_valid_parentheses.cpp b/longest_valid_parentheses.cpp
deleted file mode 100644
index 953e8be..0000000
--- a/longest_valid_parentheses.cpp
+++ /dev/null
@@ -1,41 +0,0 @@
-#include "leetcode.h"
-
-class Solution {
-public:
- int longestValidParentheses(string s) {
- int n = s.size(), ans = 0;
- stack<int> stk;
- for (int i = 0; i < n; i++) {
- if (s[i] == '(')
- stk.push(i);
- else {
- if (!stk.empty()) {
- if (s[stk.top()] == '(')
- stk.pop();
- else
- stk.push(i);
- } else
- stk.push(i);
- }
- }
- if (stk.empty())
- ans = n;
- else {
- int a = n, b = 0;
- while (!stk.empty()) {
- b = stk.top();
- stk.pop();
- ans = max(ans, a - b - 1);
- a = b;
- }
- ans = max(ans, a);
- }
- return ans;
- }
-};
-
-int main() {
- Solution obj;
- string s = ")()())";
- cout << obj.longestValidParentheses(s);
-}