C Code of initializing an one dimensional Array

A Simple Program Using One - dimensional Array

 A one dimensional array is used when it is necessary to keep a large number of items in memory and reference all the items in a uniform manner.

Write a program to find average marks obtained by a class of 30 students in a test:

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#include<stdio.h>
void main( )
{
    int avg, sum = 0 ;
    int i ; int marks[30] ; /* array declaration */
    for ( i = 0 ; i <= 29 ; i++ )
    {
         printf ( “\nEnter marks “ ) ;
         scanf ( “%d”, &marks[i] ) ; /* store data in array */
    }
    for ( i = 0 ; i <= 29 ; i++ )
       sum = sum + marks[i] ; /* read data from an array*/
       avg = sum / 30 ;
printf ( “\nAverage marks = %d”, avg ) ;
}