检查一个数字是否有相同数量的置位和未置位位

Input: 12
Output: Yes
1100 is the binary representation of 12
which has 2 set and 2 unset bits
Input: 14
Output: No


// C++ program to check if a number
// has same number of set and unset bits
#include
using namespace std;
// Function to check if a number
// has same setbits and unset bits
bool checkSame(int n)
{
    int set = 0, unset = 0;
    // iterate for all bits of a number
    while (n) {
        // if set
        if (n & 1)
            set++;
        // if unset
        else
            unset++;
        // right shift number by 1
        n = n >> 1;
    }
    // is number of set bits are
    // equal to unset bits
    if (set == unset)
        return true;
    else
        return false;
}
// Driver Code
int main()
{
    int n = 12;
    // function to check
    if (checkSame(n))
        cout << "YES";
    else
        cout << "NO";
    return 0;
}


// Java program to check if
// a number has same number
// of set and unset bits
import java.io.*;
class GFG
{
// Function to check if a
// number has same setbits
// and unset bits
static boolean checkSame(int n)
{
    int set = 0;
    int unset = 0;
    // iterate for all
    // bits of a number
    while (n > 0)
    {
        // if set
        if ((n & 1) ==  1)
            set++;
        // if unset
        else
            unset++;
        // right shift
        // number by 1
        n = n >> 1;
    }
    // is number of set bits
    // are equal to unset bits
    if (set == unset)
        return true;
    else
        return false;
}
// Driver Code
public static void main (String[] args)
{
int n = 12;
// function to check
if (checkSame(n))
    System.out.println ("YES");
else
    System.out.println("NO");
}
}
// This code is contributed
// by akt_mit


# Python program to check if a number
# has same number of set and unset bits
# Function to check if a number
# has same setbits and unset bits
def checkSame(n):
    set, unset = 0, 0
    # iterate for all bits of a number
    while(n):
        # if set
        if (n and 1):
            set + 1
        # if unset
        else:
            unset += 1
        # right shift number by 1
        n = n >> 1
    # is number of set bits are
    # equal to unset bits
    if (set == unset):
        return True
    else:
        return False
# Driver Code
if __name__ == '__main__':
    n = 12
    # function to check
    if (checkSame(n)):
        print("YES")
    else:
        print("NO")
# This code is contributed
# by 29AjayKumar


// C# program to check if
// a number has same number
// of set and unset bits
using System;
public class GFG{
// Function to check if a
// number has same setbits
// and unset bits
static bool checkSame(int n)
{
    int set = 0;
    int unset = 0;
    // iterate for all
    // bits of a number
    while (n > 0)
    {
        // if set
        if ((n & 1) == 1)
            set++;
        // if unset
        else
            unset++;
        // right shift
        // number by 1
        n = n >> 1;
    }
    // is number of set bits
    // are equal to unset bits
    if (set == unset)
        return true;
    else
        return false;
}
// Driver Code
    static public void Main (){
        int n = 12;
    // function to check
    if (checkSame(n))
        Console.WriteLine("YES");
    else
        Console.WriteLine("NO");
    }
}



// PHP program to check if a number
// has same number of set and unset bits
// Function to check if a number
// has same setbits and unset bits
function checkSame($n)
{
    $set = 0;
    $unset = 0;
    // iterate for all bits
    // of a number
    while ($n)
    {
        // if set
        if ($n & 1)
            $set++;
        // if unset
        else
            $unset++;
        // right shift number by 1
        $n = $n >> 1;
    }
    // is number of set bits are
    // equal to unset bits
    if ($set == $unset)
        return true;
    else
        return false;
}
// Driver Code
$n = 12;
// function to check
if (checkSame($n))
    echo "YES";
else
    echo "NO";
// This code is contributed
// by Sach_Code
?>


YES