Merge pull request #38 from Manishak798/Manishak798-patch-34

Create validParentheses.cpp
Manishak798 · Nov 19, 2024 · b6fb79c · b6fb79c
2 parents 30684de + d612077
commit b6fb79c
Showing 1 changed file with 25 additions and 0 deletions.
diff --git a/Arrays/validParentheses.cpp b/Arrays/validParentheses.cpp
@@ -0,0 +1,25 @@
+class Solution {
+public:
+    bool isValid(string s) {
+        if(s.size() == 1){
+            return false;
+        }
+        stack <char> st;
+        for(int i=0; i<s.size(); i++){
+            if(s[i] == '(' || s[i] == '[' || s[i] == '{'){
+                st.push(s[i]);
+            }else{
+                if(st.empty()){
+                    return false;
+                }
+                char ch = st.top();
+                st.pop();
+                if(s[i] == ')' && ch == '(' || s[i] == ']' && ch == '[' || s[i] == '}' && ch == '{'){
+                }else{
+                    return false;
+                }
+            }
+        }
+        return st.empty();
+    }
+};