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question_17.cpp
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question_17.cpp
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/*
==> Game with nos <==
Question Link:- https://practice.geeksforgeeks.org/problems/game-with-nos3123/1?page=2&difficulty[]=-1&category[]=Arrays&sortBy=submissions
You are given an array arr[], and you have to re-construct an array arr[].
The values in arr[] are obtained by doing Xor of consecutive elements in the array.
Example 1:
Input : n=5, arr[ ] = {10, 11, 1, 2, 3}
Output : 1 10 3 1 3
Explanation:
At index 0, arr[0] xor arr[1] = 1
At index 1, arr[1] xor arr[2] = 10
At index 2, arr[2] xor arr[3] = 3
...
At index 4, No element is left So, it will remain as
it is.
New Array will be {1, 10, 3, 1, 3}.
Example 2:
Input : n=4, arr[ ] = {5, 9, 7, 6}
Output : 12 14 1 6
Explanation:
At index 0, arr[0] xor arr[1] = 12
At index 1, arr[1] xor arr[2] = 14
At index 2, arr[2] xor arr[3] = 1
At index 3, No element is left So, it will remain as it is.
New Array will be {12, 14, 1, 6}.
*/
#include <iostream>
using namespace std;
void printArray(int arr[], int n) {
for ( int i = 0; i < n; i++ ) cout << arr[i] << " ";
}
int* game_with_number(int arr[], int n) {
for ( int i = 0; i <= n-2; i++ ) arr[i] ^= arr[i+1];
return arr;
}
int main () {
int arr[] = {10, 11, 1, 2, 3}, n = 5;
int *ar2 = game_with_number(arr, n);
printArray(ar2, n);
return 0;
}