Added palindrome in c

Author: kavinplays

C/palindrome.c

@@ -0,0 +1,20 @@
+#include <stdio.h>
+#include <string.h>
+ 
+int main()
+{
+    char str[] = { "abba" }; //change string to check here
+    int l = 0;
+    int h = strlen(str) - 1;
+ 
+    while (h > l) {
+        if (str[l++] != str[h--]) { //checks if first x char and last x char are the same
+            printf("%s is not a palindrome\n", str);
+            return 0;//ends the program here
+        }
+    }
+ 
+    printf("%s is a palindrome\n", str);
+ 
+    return 0;
+}