{"id":550,"date":"2020-06-10T11:29:03","date_gmt":"2020-06-10T11:29:03","guid":{"rendered":"https:\/\/blog.prepbytes.com\/?p=550"},"modified":"2023-04-27T11:10:54","modified_gmt":"2023-04-27T11:10:54","slug":"students-roll-number","status":"publish","type":"post","link":"https:\/\/prepbytes.com\/blog\/students-roll-number\/","title":{"rendered":"Program to Print Roll No of Students Seated at Even Position"},"content":{"rendered":"

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Arrays are the data structures that enables us to store data of similar type under the same variable name. It can be used to store the details of the student in a compact an an efficient. Here we will learn how to write a program that prints the roll no. of students that are seated at the even position.<\/p>\n

How to Print Roll No. of Students at Even Places<\/h2>\n

We have given N seats of students taking an English paper from an array of seats, where English paper students occupy even-numbered seats (0, 2, 4, …) and Hindi paper students occupy odd-numbered seats (1, 3, 5, …). We have to print the Students that are taking the English paper.<\/p>\n

<\/a><\/p>\n

Sample Input:<\/strong><\/p>\n

N = 5 \nArr[] = [1, 2, 3, 4, 5]<\/code><\/pre>\n
Sample Output:<\/strong><\/p>\n
1 3 5<\/code><\/pre>\n
Algorithm<\/h3>\n
Here is the step-wise algorithm for implementing the above program.<\/p>\n
    \n
  • Step 1:<\/strong> Declare a variable n, denoting the size of the array.<\/li>\n
  • Step 2:<\/strong> Input the value of n from the user.<\/li>\n
  • Step 3:<\/strong> Now declare an array of size n.<\/li>\n
  • Step 4:<\/strong> Take the input values of the array by using a for loop.<\/li>\n
  • Step 5:<\/strong> Now, traverse the entire array. If the current index is a multiple of 2, then print it else move ahead.<\/li>\n<\/ul>\n
    Code Implementation<\/h3>\n
    Here is the code implementation of the above algorithm in C, C++, Java, and Python.<\/p>\n\t\t\t\t\t\t