C Program to Copy Elements From One Array to Another Array

Here is the C program to copy all elements from one array to another array.

Required Knowledge

• C printf and scanf functions
• For loop in C
• Accessing Array Elements in C

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 i^th(0 <= i <= N-1) element of inputArray to i^th index of copyArray.
  copyArray[i] = inputArray[i];

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

#include <stdio.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);
    
    for(counter = 0; counter < elementCount; counter++){
        scanf("%d", &inputArray[counter]);
    }
       
    for(counter = 0; counter < elementCount; counter++){
        copyArray[counter] = inputArray[counter];
    }
    
    printf("Duplicate Array\n");
    for(counter = 0; counter < elementCount; counter++){
        printf("%d ", copyArray[counter]);
    }
         
    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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