Create valid palindrome

Author: thatithuripriya

valid palindrome

@@ -0,0 +1,15 @@
+#include <ctype.h>
+#include <stdbool.h>
+#include <string.h>
+
+bool isPalindrome(char * s) {
+    int left = 0, right = strlen(s) - 1;
+    while (left < right) {
+        while (left < right && !isalnum(s[left])) left++;
+        while (left < right && !isalnum(s[right])) right--;
+        if (tolower(s[left]) != tolower(s[right])) return false;
+        left++;
+        right--;
+    }
+    return true;
+}