检查两个数字是不使用算术和比较运算符等于

以下内容禁止使用
1)算术和比较运算符
2)字符串函数

方法1：想法是使用XOR运算符。如果数字相同，则两个数字的XOR为0，否则为非零。

C++

// C++ program to check if two numbers
// are equal without using arithmetic
// and comparison operators
#include 
using namespace std;
 
// Function to check if two
// numbers are equal using
// XOR operator
void areSame(int a, int b)
{
    if (a ^ b)
        cout << "Not Same";
    else
        cout << "Same";
}
 
// Driver Code
int main()
{
 
    // Calling function
    areSame(10, 20);
}

Java

// Java program to check if two numbers
// are equal without using arithmetic
// and comparison operators
class GFG {
 
    // Function to check if two
    // numbers are equal using
    // XOR operator
    static void areSame(int a, int b)
    {
        if ((a ^ b) != 0)
            System.out.print("Not Same");
        else
            System.out.print("Same");
    }
 
    // Driver Code
    public static void main(String[] args)
    {
 
        // Calling function
        areSame(10, 20);
    }
}
 
// This code is contributed by Smitha

Python3

# Python3 program to check if two numbers
# are equal without using arithmetic
# and comparison operators
 
def areSame(a, b):
 
# Function to check if two
# numbers are equal using
# XOR operator
 if ((a ^ b) != 0):
    print("Not Same")
 else:
    print("Same")
 
# Driver Code
 
areSame(10, 20)
 
# This code is contributed by Smitha

C#

// C# program to check if two numbers
// are equal without using arithmetic
// and comparison operators
using System;
 
class GFG {
 
    // Function to check if two
    // numbers are equal using
    // XOR operator
    static void areSame(int a, int b)
    {
        if ((a ^ b) != 0)
            Console.Write("Not Same");
        else
            Console.Write("Same");
    }
 
    // Driver Code
    public static void Main(String[] args)
    {
 
        // Calling function
        areSame(10, 20);
    }
}
 
// This code is contributed by Smitha

Javascript

 
// Javascript program to check if two numbers
// are equal without using arithmetic and
// comparison operators  
 
// Function to check if two
// numbers are equal using
// XOR operator
function areSame(a, b)
{
    if ((a ^ b) != 0)
        document.write("Not Same");
    else
        document.write("Same");
}
 
// Driver Code
areSame(10, 20);
 
// This code is contributed by shikhasingrajput
 

输出 ：

Not Same

方法2：这里的想法是使用补码(〜)和按位’＆’运算符。

C++

// C++ program to check if two numbers
// are equal without using arithmetic
// and comparison operators
#include 
using namespace std;
 
// Function to check if two
// numbers are equal using
// using ~ complement and & operator.
void areSame(int a, int b)
{
    if ((a & ~b) == 0 && (~a & b) == 0)
        cout << "Same";
    else
        cout << "Not Same";
}
// Driver Code
int main()
{
 
    // Calling function
    areSame(10, 20);
}

Java

// Java program to check if two numbers
// are equal without using arithmetic
// and comparison operators
 
class GFG {
    // Function to check if two
    // numbers are equal using
    // using ~ complement and & operator.
    static void areSame(int a, int b)
    {
        if ((a & ~b) == 0 && (~a & b) == 0)
            System.out.print("Same");
        else
            System.out.print("Not Same");
    }
 
    // Driver Code
    public static void main(String args[])
    {
        // Calling function
        areSame(10, 20);
    }
}
 
// This code is contributed
// by Akanksha Rai

Python3

# Python3 program to check if two numbers
# are equal without using arithmetic
# and comparison operators
 
# Function to check if two
# numbers are equal using
# using ~ complement and & operator.
def areSame(a, b):
    if ( (a & ~b) == 0 and (~a & b) == 0 ):
        print("Same")
    else:
        print("Not Same")    
# Calling function
areSame(10, 20)
 
# This code is contributed by Rajput-Ji

C＃

// C# program to check if two numbers
// are equal without using arithmetic
// and comparison operators
using System;
 
class GFG {
    // Function to check if two
    // numbers are equal using
    // using ~ complement and & operator.
    static void areSame(int a, int b)
    {
        if ((a & ~b) == 0 && (~a & b) == 0)
            Console.Write("Same");
        else
            Console.Write("Not Same");
    }
 
    // Driver Code
    public static void Main()
    {
        // Calling function
        areSame(10, 20);
    }
}
 
// This code is contributed
// by Akanksha Rai

Java脚本

 
// Javascript program to check if two numbers
// are equal without using arithmetic
// and comparison operators
 
// Function to check if two
// Numbers are equal using
// using ~ complement and & operator.
function areSame(a, b)
{
    if ((a & ~b) == 0 && (~a & b) == 0)
        document.write("Same");
    else
        document.write("Not Same");
}
 
// Driver Code
 
// Calling function
areSame(10, 20);
 
// This code is contributed by gauravrajput1
 

输出 ：

Not Same