We use cookies to ensure you have the best browsing experience on our website. Please read our cookie policy for more information about how we use cookies.
  • HackerRank Home

    HackerRank

  • |
  • Prepare
  • Certify
  • Compete
  • Hiring developers?
  1. Prepare
  2. C
  3. Arrays and Strings
  4. 1D Arrays in C

1D Arrays in C

Problem
Submissions
Leaderboard
Discussions
Editorial

An array is a container object that holds a fixed number of values of a single type. To create an array in C, we can do int arr[n];. Here, arr, is a variable array which holds up to integers. The above array is a static array that has memory allocated at compile time. A dynamic array can be created in C, using the malloc function and the memory is allocated on the heap at runtime. To create an integer array, of size , int *arr = (int*)malloc(n * sizeof(int)), where points to the base address of the array. When you have finished with the array, use free(arr) to deallocate the memory.

In this challenge, create an array of size dynamically, and read the values from stdin. Iterate the array calculating the sum of all elements. Print the sum and free the memory where the array is stored.

While it is true that you can sum the elements as they are read, without first storing them to an array, but you will not get the experience working with an array. Efficiency will be required later.

Input Format

The first line contains an integer, .
The next line contains space-separated integers.

Constraints


Output Format

Print the sum of the integers in the array.

Sample Input 0

6
16 13 7 2 1 12 

Sample Output 0

51

Sample Input 1

7
1 13 15 20 12 13 2 

Sample Output 1

76

Author

[deleted]

Difficulty

Medium

Max Score

10

Submitted By

253309

Need Help?


View discussions
View editorial
View top submissions

rate this challenge

MORE DETAILS

Download problem statement
Download sample test cases
Suggest Edits
  • Blog
  • Scoring
  • Environment
  • FAQ
  • About Us
  • Support
  • Careers
  • Terms Of Service
  • Privacy Policy