leetcode problem palindrome.cpp

palindrome.cpp

@@ -0,0 +1,58 @@
+#include<iostream>
+
+using namespace std;
+
+  void case1(int x)
+     {     x=121;
+         cout<<"for positive integers : "<<x<<endl;
+     }
+  void case2(int x)
+     {    x=-121;
+         cout<<"for negative integers : "<<x<<endl;
+     }
+  void case3(int x)
+     {   x=10;
+         cout<<"for integers end with zero: "<<x<<endl;
+     }
+
+    bool isPalindrome(int x) {
+       if(x < 0)
+        {
+            return false;
+        }
+    long  n = x;
+    long  Num = 0, rem;
+      while(x != 0)
+    {
+        rem = x%10;
+        Num = (Num*10)+rem;
+        x /= 10;
+    }
+
+    if(Num == n)
+    {
+        return true;
+    }
+     return false;
+}
+
+    int main()
+    {    
+       int x,c,n;
+       case1(x);
+        // cout<<isPalindrome(x);
+       if(c==0)
+       {cout<<"false"<<endl;}
+       else{cout<<"true"<<endl;}
+       case2(x);
+        c=isPalindrome(x);
+       if(c==0)
+       {cout<<"false"<<endl;}
+       else{cout<<"true"<<endl;}
+       case3(x);
+        c=isPalindrome(x);
+       if(c==0)
+       {cout<<"false"<<endl;}
+       else{cout<<"true"<<endl;}
+        return 0;
+    }