Compare two integers without using any Comparison operator Last Updated : 30 Jan, 2023 Comments Improve Suggest changes Like Article Like Report Given two integers A & B. Task is to check if A and B are same or not without using comparison operators.Examples: Input : A = 5 , B = 6Output : 0 Input : A = 5 , B = 5 Output : 1 Note : 1 = "YES" and 0 = "NO" The idea is pretty simple we do Xor of both elements ( A, B ). if Xor is zero then two numbers are equal else not. Below is the implementation of the above idea : C++ // C++ program to compare two integers without // any comparison operator. #include<bits/stdc++.h> using namespace std; // function return true if A ^ B > 0 else false bool EqualNumber(int A, int B) { return ( A ^ B ) ; } // Driver program int main() { int A = 5 , B = 6; cout << !EqualNumber(A, B) << endl; return 0; } Java // Java program to compare two integers without // any comparison operator. import java.util.*; class solution { // function return true if A ^ B > 0 else false static boolean EqualNumber(int A, int B) { if ((A^B) != 0) return true; else return false; } // Driver program public static void main(String args[]) { int A = 5 , B = 6; if(EqualNumber(A, B) == false) System.out.println(1); else System.out.println(0); } } // This code is contributed by // Surendra_Gangwar Python3 # Python3 program to compare two integers # without any comparison operator. # Function return true if # A ^ B > 0 else false def EqualNumber(A, B): return ( A ^ B ) # Driver Code A = 5; B = 6 print(int(not(EqualNumber(A, B)))) # This code is contributed by Smitha Dinesh Semwal. C# // C# program to compare two integers // without any comparison operator. using System; class GFG { // function return true if // A ^ B > 0 else false static bool EqualNumber(int A, int B) { if(( A ^ B ) > 0) return true; else return false; } // Driver Code public static void Main() { int A = 5 , B = 6; if(!EqualNumber(A, B) == false) Console.WriteLine("0"); else Console.WriteLine("1"); } } // This code is contributed // by Akanksha Rai PHP <?php // PHP program to compare two integers // without any comparison operator. // function return true if // A ^ B > 0 else false function EqualNumber($A, $B) { return ( $A ^ $B ) ; } // Driver Code $A = 5 ; $B = 6; echo ((int)!(EqualNumber($A, $B))) . "\n"; // This code is contributed // by ChitraNayal ?> JavaScript <script> // JavaScript program to compare two integers without // any comparison operator. // function return true if A ^ B > 0 else false function EqualNumber(A, B) { return ( A ^ B ) ; } // Driver program let A = 5 , B = 6; if(!EqualNumber(A, B) == false) document.write("0"); else document.write("1"); // This code is contributed by Surbhi Tyagi. </script> Output0 Time Complexity: O(1)Auxiliary Space: O(1) 2nd Method: Another Approach is using "-" (Minus/Subtraction Operator). If the Result of Subtraction between the two Numbers is "Zero", then they are equal (we return '1'), else they are not equal (we return '0'). C++ // C++ program to compare two integers // without any comparison operator. #include <iostream> using namespace std; // Function return 0 if // A - B != 0 else return 1 int EqualNumber(int A, int B) { int diff = A - B; if(diff) return 0; else return 1; } // Driver Code int main() { int A = 5, B = 6; cout << EqualNumber(A, B); return 0; } // This code is contributed by kothavvsaakash Java import java.util.*; public class GFG { // Function return 0 if // A - B != 0 else return 1 static int EqualNumber(int A, int B) { int diff = A - B; if (diff != 0) return 0; else return 1; } // Driver Code public static void main(String[] args) { int A = 5, B = 6; System.out.println(EqualNumber(A, B)); } } // This code is contributed by karandeep1234. Python # Python3 program to compare two integers # without any comparison operator. # Function return 0 if # A - B != 0 else return 1 def EqualNumber(A, B): diff = A - B if(diff): return 0 else: return 1 # Driver Code A = 5; B = 6 print((EqualNumber(A, B))) # This code is contributed by kothavvsaakash C# // C# program to compare two integers without // any comparison operator. using System; public class GFG { // Function return 0 if // A - B != 0 else return 1 static int EqualNumber(int A, int B) { int diff = A - B; if (diff != 0) return 0; else return 1; } static public void Main() { // Code int A = 5, B = 6; Console.Write(EqualNumber(A, B)); } } // This code is contributed by lokeshmvs21. JavaScript <script> // JavaScript program to compare two integers without // any comparison operator. function EqualNumber(A, B) { var diff = A - B; if(diff) return 0 else return 1 } // Driver program let A = 5 , B = 6; document.write(EqualNumber(A, B)) // This code is contributed by kothavvsaakash. </script> Output0 Time Complexity: O(1)Auxiliary Space: O(1) Comment More infoAdvertise with us K kartik Improve Article Tags : Bit Magic DSA Bitwise-XOR Practice Tags : Bit Magic Similar Reads Basics & PrerequisitesLogic Building ProblemsLogic building is about creating clear, step-by-step methods to solve problems using simple rules and principles. 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