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 = 6 Output : 0 Input : A = 5 , B = 5 Output : 1 Note : 1 = "YES" and 0 = "NO"
idea is pretty simple we do Xor of both element ( A , B ) . if Xor is zero then two number are equal else not .
Below is the implementation of above idea :
C++
// C++ program to compare two integers witout // 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 witout // 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 = 6print(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 ?> |
Output:
0
Reference :http://stackoverflow.com/questions/476800/comparing-two-integers-without-any-comparison
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