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C > Arrays and Matrices Code Examples

program to input and print elements in array

program to input and print elements in array

Write a C program to input elements in array and print array. How to input and display elements in an array using for loop in C programming.

How to input and display array elements

Array uses an index for accessing an element. Array index starts from 0 to N-1 (where N is the number of elements in array).

To access any an array element we use.

array[0] = 10
array[1] = 20
array[2] = 30

array[9] = 100

Since array index is an integer value. Hence, rather hard-coding constant array index, you can use integer variable to represent index. For example,

int j = 0;
array[j] = 10; // Assigns 10 to first array element

#include <stdio.h>
#define maxsize 1000 // Maximum array size

int main()
{
    int arr[maxsize]; // Declare an array of maxsize
    int j, N;

    /* Input array size */
    printf("Enter size of array: ");
    scanf("%d", &N);

    /* Input elements in array */
    printf("Enter %d elements in the array : ", N);
    for(j=0; j<N; j++)
    {
        scanf("%d", &arr[j]);
    }

    /* Print all elements of array     */
    printf("\nElements in array are: ");
    for(j=0; j<N; j++)
    {
        printf("%d, ", arr[j]);
    }

    return 0;
}

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