C Exercises: Read n number of values in an array and display it in reverse order
C Array: Exercise-2 with Solution
Write a program in C to read n number of values in an array and display them in reverse order.
Visual Presentation:

Pseudo code:
Start Declare n, i as integer variables Declare nums as an integer array of size n Read n from the user Read values into the array nums from the user in a loop from i=0 to n-1 Print "Array in reverse order: " For i=n-1 to 0 Step -1 Print nums [i] End For End
Sample Solution:
C Code:
#include <stdio.h>
void main()
{
int i,n,a[100];
printf("\n\nRead n number of values in an array and display it in reverse order:\n");
printf("------------------------------------------------------------------------\n");
printf("Input the number of elements to store in the array :");
scanf("%d",&n);
printf("Input %d number of elements in the array :\n",n);
for(i=0;i<n;i++)
{
printf("element - %d : ",i);
scanf("%d",&a[i]);
}
printf("\nThe values store into the array are : \n");
for(i=0;i<n;i++)
{
printf("% 5d",a[i]);
}
printf("\n\nThe values store into the array in reverse are :\n");
for(i=n-1;i>=0;i--)
{
printf("% 5d",a[i]);
}
printf("\n\n");
}
Sample Output:
Read n number of values in an array and display it in reverse order: ------------------------------------------------------------------------ Input the number of elements to store in the array :3 Input 3 number of elements in the array : element - 0 : 2 element - 1 : 5 element - 2 : 7 The values store into the array are : 2 5 7 The values store into the array in reverse are : 7 5 2
Explanation:
printf("Input the number of elements to store in the array :"); scanf("%d",&n); printf("Input %d number of elements in the array :\n",n); for(i=0;i<n;i++) { printf("element - %d : ",i); scanf("%d",&a[i]); } printf("\nThe values store into the array are : \n"); for(i=0;i<n;i++) { printf("% 5d",a[i]); } printf("\n\nThe values store into the array in reverse are :\n"); for(i=n-1;i>=0;i--) { printf("% 5d",a[i]); } printf("\n\n");
In the above code -
- The first printf statement prompts the user to input the number of elements they want to store in the array and stores it in the variable n using scanf.
- The second printf statement asks the user to input n number of elements into the array using a for loop, and stores each input in the corresponding index of the array a[i].
- The third printf statement then prints out the contents of the array in order using another for loop.
- The fourth printf statement then prints out the contents of the array in reverse order using yet another for loop, which iterates over the elements of a starting from the last element and printing each element out in reverse order.
Flowchart:

C Programming Code Editor:
Improve this sample solution and post your code through Disqus.
Previous: Write a program in C to store elements in an array and print it.
Next: Write a program in C to find the sum of all elements of an array.
What is the difficulty level of this exercise?
Test your Programming skills with w3resource's quiz.
C Programming: Tips of the Day
What is the static function in C ?
Making a function static hides it from other translation units, which helps provide encapsulation.
helper_file.c
int f1(int); /* prototype */ static int f2(int); /* prototype */ int f1(int foo) { return f2(foo); /* ok, f2 is in the same translation unit */ /* (basically same .c file) as f1 */ } int f2(int foo) { return 42 + foo; }
main.c:
int f1(int); /* prototype */ int f2(int); /* prototype */ int main(void) { f1(10); /* ok, f1 is visible to the linker */ f2(12); /* nope, f2 is not visible to the linker */ return 0; }
Ref : https://bit.ly/3CI9ebJ
- Weekly Trends
- Python Interview Questions and Answers: Comprehensive Guide
- Scala Exercises, Practice, Solution
- Kotlin Exercises practice with solution
- MongoDB Exercises, Practice, Solution
- SQL Exercises, Practice, Solution - JOINS
- Java Basic Programming Exercises
- SQL Subqueries
- Adventureworks Database Exercises
- C# Sharp Basic Exercises
- SQL COUNT() with distinct
- JavaScript String Exercises
- JavaScript HTML Form Validation
- Java Collection Exercises
- SQL COUNT() function
- SQL Inner Join
We are closing our Disqus commenting system for some maintenanace issues. You may write to us at reach[at]yahoo[dot]com or visit us at Facebook