用所有其他的BitWise XOR替换数组的每个元素

本文概述

C ++
Java
Python 3
C#
的PHP

给定一个整数数组。任务是用数组中所有其他元素的按位异或替换每个元素。
例子：

Input: arr[] = { 2, 3, 3, 5, 5 } Output: 0 1 1 7 7 Bitwise Xor of 3, 3, 5, 5 = 0 Bitwise Xor of 2, 3, 5, 5 = 1 Bitwise Xor of 2, 3, 5, 5 = 1 Bitwise Xor of 2, 3, 3, 5 = 7 Bitwise Xor of 2, 3, 3, 5 = 7Input : arr[] = { 1, 2, 3 } Output : 1 2 3

方法：

首先, 对数组所有元素进行按位异或, 并将其存储在变量let X中。
现在, 将每个元素替换为X和该元素的异或, 因为对同一个元素进行异或将抵消所有其他元素的异或。
打印修改后的数组。

下面是上述方法的实现：
C ++

//C++ program to Replace every element //by the bitwise xor of all other elements #include < bits/stdc++.h> using namespace std; //Function to replace the elements void ReplaceElements( int arr[], int n) { int X = 0; //Calculate the xor of all the elements for ( int i = 0; i < n; ++i) { X ^= arr[i]; }//Replace every element by the //xor of all other elements for ( int i = 0; i < n; ++i) { arr[i] = X ^ arr[i]; } }//Driver code int main() { int arr[] = { 2, 3, 3, 5, 5 }; int n = sizeof (arr) /sizeof (arr[0]); ReplaceElements(arr, n); //Print the modified array. for ( int i = 0; i < n; ++i) { cout < < arr[i] < < " " ; } return 0; }

Java

//Javaprogram to Replace every element //by the bitwise xor of all other elements import java.io.*; class GFG {//Function to replace the elements static void ReplaceElements( int arr[], int n) { int X = 0 ; //Calculate the xor of all the elements for ( int i = 0 ; i < n; ++i) { X ^= arr[i]; } //Replace every element by the //xor of all other elements for ( int i = 0 ; i < n; ++i) { arr[i] = X ^ arr[i]; } } //Driver code public static void main (String[] args) {int arr[] = { 2 , 3 , 3 , 5 , 5 }; int n = arr.length; ReplaceElements(arr, n); //Print the modified array. for ( int i = 0 ; i < n; ++i) { System.out.print(arr[i] + " " ); } } }

Python 3

# Python 3 program to Replace every element # by the bitwise xor of all other elements# Function to replace the elements def ReplaceElements(arr, n):X = 0# Calculate the xor of all the elements for i in range (n): X ^ = arr[i]# Replace every element by the # xor of all other elements for i in range (n): arr[i] = X ^ arr[i]# Driver code if __name__ = = "__main__" : arr = [ 2 , 3 , 3 , 5 , 5 ] n = len (arr)ReplaceElements(arr, n)# Print the modified array. for i in range (n): print (arr[i], end = " " )# This code is contributed # by ChitraNayal

//C#program to Replace every element //by the bitwise xor of all other elements using System; public class GFG{ //Function to replace the elements static void ReplaceElements( int []arr, int n) { int X = 0; //Calculate the xor of all the elements for ( int i = 0; i < n; ++i) { X ^= arr[i]; } //Replace every element by the //xor of all other elements for ( int i = 0; i < n; ++i) { arr[i] = X ^ arr[i]; } } //Driver code static public void Main (){int []arr = { 2, 3, 3, 5, 5 }; int n = arr.Length; ReplaceElements(arr, n); //Print the modified array. for ( int i = 0; i < n; ++i) { Console.Write(arr[i] + " " ); } } //This code is contributed by ajit }

的PHP

< ?php //PHP program to Replace every element //by the bitwise xor of all other elements //Function to replace the elements function ReplaceElements( $arr , $n ) { $X = 0; //Calculate the xor of all the elements for ( $i = 0; $i < $n ; ++ $i ) { $X ^= $arr [ $i ]; } //Replace every element by the //xor of all other elements for ( $i = 0; $i < $n ; ++ $i ) { $arr [ $i ] = $X ^ $arr [ $i ]; } return $arr ; } //Driver code $arr = array ( 2, 3, 3, 5, 5 ); $n = sizeof( $arr ); $arr1 = ReplaceElements( $arr , $n ); //Print the modified array. for ( $i = 0; $i < $n ; ++ $i ) { echo ( $arr1 [ $i ] . " " ); }//This code is contributed //by Mukul singh ?>

输出如下：