C program to input an array from a sequence of space-separated integers

Given a string S consisting of space-separated integers, the task is to write a C program to take the integers as input from the string S and store them in an array arr[].

Examples:

Input: S = "1 2 3 4"
Output: {1, 2, 3, 4}

Input: S = "32 12"
Output: {32, 12}

Approach: The idea is to solve the given problem is to use getchar() function to check if a '\n' (newline) occurs is found while taking input and then stop the input. Follow the step below to solve the given problem:

• Initialize a variable, say count, which is used to store the index of the array element.
• Initialize an array arr[] of size 10⁶ to store the elements into the array.
• Iterate using a do-while loop until newLine occurs and perform the following steps:
  • Store the current value at index count as scanf("%d ", &arr[count]); and increment the value of count.
  • If the next character is not endline, then continue. Otherwise, break out of the loop.
• After completing the above steps, print the elements stored in the array.

Below is the implementation of the above approach:

Output: