C Program to Copy Elements From One Array to Another Array

  • Write a C program to copy all elements from one array to another array.
  • How to copy elements of one array to another array.

Required Knowledge


Algorithm to copy elements of one array to another array
Let inputArray is an integer array having N elements and copyArray is the array where we want to copy all N elements of inputArray. Size of copyArray is >= size of inputArray.
  • Using for loop, we will traverse inputArray from array from index 0 to N-1.
  • We will copy the ith(0 <= i <= N-1) element of inputArray to ith index of copyArray.
    copyArray[i] = inputArray[i];

C program to copy all elements of an array to another array

/*
* C Program to copy all elements of one array to another array
*/
#include <stdio.h>
#include <conio.h>
 
int main(){
    int inputArray[100], copyArray[100], elementCount, counter;
     
    printf("Enter Number of Elements in Array\n");
    scanf("%d", &elementCount);
    printf("Enter %d numbers \n", elementCount);
    
    /* Read array elements */
    for(counter = 0; counter < elementCount; counter++){
        scanf("%d", &inputArray[counter]);
    }
       
    /* Copy array elements form inputArray to copyArray */
    for(counter = 0; counter < elementCount; counter++){
        copyArray[counter] = inputArray[counter];
    }
    
    /* Print duplicate Array(copyArray) elements */
    printf("Duplicate Array\n");
    for(counter = 0; counter < elementCount; counter++){
        printf("%d ", copyArray[counter]);
    }
         
    getch();
    return 0;
}
Output
Enter Number of Elements in Array
5
Enter 5 numbers
5 3 8 1 -3
Duplicate Array
5 3 8 1 -3

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