数组所有元素的按位与

给定一个由N个整数组成的数组arr [] ，任务是找出数组所有元素的按位AND(＆) 。

例子：

Input: arr[] = {1, 3, 5, 9, 11} 
Output: 1

Input: arr[] = {3, 7, 11, 19, 11} 
Output: 3 
 

方法：想法是遍历所有数组元素并计算所有元素的按位与并打印获得的结果。

下面是上述方法的实现：

C++14

// C++ program to find bitwise AND
// of all the elements in the array
#include 
using namespace std;
  
int find_and(int arr[], int len){
          
    // Initialise ans variable is arr[0]
    int ans = arr[0];
  
    // Traverse the array compute AND
    for (int i = 0; i < len; i++){
        ans = (ans&arr[i]);
    }
    // Return ans
    return ans;
}
 
// Driver function
int main()
{
    int arr[] = {1, 3, 5, 9, 11};
    int n = sizeof(arr) / sizeof(arr[0]);
 
    // Function Call to find AND
    cout << find_and(arr, n);
    return 0;
}
 
// This code is contributed by sapnasingh4991

Java

// Java program to find bitwise AND
// of all the elements in the array
import java.util.*;
class GFG{
// Function to calculate bitwise AND
    static int find_and(int arr[]){
         
        // Initialise ans variable is arr[0]
        int ans = arr[0];
         
        // Traverse the array compute AND
        for (int i=0;i

---

Python3

# Python program to find bitwise AND
# of all the elements in the array
 
# Function to calculate bitwise AND
def find_and(arr):
     
    # Initialise ans variable is arr[0]
    ans = arr[0]
     
    # Traverse the array compute AND
    for i in range(1, len(arr)):
        ans = ans&arr[i]
         
    # Return ans
    return ans
     
# Driver Code
if __name__ == '__main__':
    arr = [1, 3, 5, 9, 11]
     
    # Function Call to find AND
    print(find_and(arr))

C#

// C# program to find bitwise AND
// of all the elements in the array
using System;
class GFG{
// Function to calculate bitwise AND
    static int find_and(int[] arr){
         
        // Initialise ans variable is arr[0]
        int ans = arr[0];
         
        // Traverse the array compute AND
        for (int i=0;i

---

Javascript

 
// Javascript program to find bitwise AND
// of all the elements in the array
 
// Function to calculate bitwise AND
function find_and(arr)
{
     
    // Initialise ans variable is arr[0]
    let ans = arr[0];
       
    // Traverse the array compute AND
    for(let i = 0; i < arr.length; i++)
    {
        ans = (ans&arr[i]);
    }
     
    // Return ans
    return ans;
}
 
// Driver Code
let arr = [ 1, 3, 5, 9, 11 ];
 
// Function Call to find AND
document.write(find_and(arr));
     
// This code is contributed by unknown2108
 

输出：

1