Question

How to move element to end of array in C++

Answer 1

#include <iostream>

void ShiftArrayToLeft(int arr[], int size, int start) {
    for (int i = start; i < size - 1; i++) {
        arr[i] = arr[i + 1];
    }
}

void MoveElementToEndOfArray(int arr[], int size, int index) {
	int n = arr[index];

	ShiftArrayToLeft(arr, size, index);

	arr[size - 1] = n;
}

void PrintArray(int arr[], int size) {
    for (int i = 0; i < size; i++)
        std::cout << arr[i] << " ";
}
  
int main() {
    int arr[] = { 4, 9, 12, 90, 13, 0, 3, 97 };

    int size = sizeof(arr) / sizeof(arr[0]);
    
    PrintArray(arr, size);

    int index = 4;

    std::cout << "\nelement value: " << arr[index] << "\n";
     
    MoveElementToEndOfArray(arr, size, index);

    PrintArray(arr, size);
}




/*
run:

4 9 12 90 13 0 3 97 
element value: 13
4 9 12 90 0 3 97 13 

*/

 

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