C Programming Exercises, Practice, Solution : Function
C Function [12 exercises with solution]
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1. Write a program in C to show the simple structure of a function.Go to the editor
Expected Output :
The total is : 11
2. Write a program in C to find the square of any number using the function. Go to the editor
Test Data :
Input any number for square : 20
Expected Output :
The square of 20 is : 400.00
3. Write a program in C to swap two numbers using function. Go to the editor
Test Data :
Input 1st number : 2
Input 2nd number : 4
Expected Output :
Before swapping: n1 = 2, n2 = 4 After swapping: n1 = 4, n2 = 2
4. Write a program in C to check a given number is even or odd using the function. Go to the editor
Test Data :
Input any number : 5
Expected Output :
The entered number is odd.
5. Write a program in C to find the sum of the series 1!/1+2!/2+3!/3+4!/4+5!/5 using the function. Go to the editor
Expected Output :
The sum of the series is : 34
6. Write a program in C to convert decimal number to binary number using the function. Go to the editor
Test Data :
Input any decimal number : 65
Expected Output :
The Binary value is : 1000001
7. Write a program in C to check whether a number is a prime number or not using the function. Go to the editor
Test Data :
Input a positive number : 5
Expected Output :
The number 5 is a prime number.
8. Write a program in C to get the largest element of an array using the function. Go to the editor
Test Data :
Input the number of elements to be stored in the array :5
Input 5 elements in the array :
element - 0 : 1
element - 1 : 2
element - 2 : 3
element - 3 : 4
element - 4 : 5
Expected Output :
The largest element in the array is : 5
9. Write a program in C to check armstrong and perfect numbers using the function. Go to the editor
Test Data :
Input any number: 371
Expected Output :
The 371 is an Armstrong number. The 371 is not a Perfect number.
10. Write a program in C to print all perfect numbers in given range using the function. Go to the editor
Test Data :
Input lowest search limit of perfect numbers : 1
Input lowest search limit of perfect numbers : 100
Expected Output :
The perfect numbers between 1 to 100 are : 6 28
11. Write a program in C to check whether two given strings are an anagram. Go to the editor
Test Data :
Input the first String : spare
Input the second String : pears
Expected Output :
spare and pears are Anagram.
12. Write a C programming to find out maximum and minimum of some values using function which will return an array. Go to the editor
Test Data :
Input 5 values
25
11
35
65
20
Expected Output :
Number of values you want to input: Input 5 values Minimum value is: 11 Maximum value is: 65
C Programming Code Editor:
More to Come !
Do not submit any solution of the above exercises at here, if you want to contribute go to the appropriate exercise page.
C Programming: Tips of the Day
Static variable inside of a function in C
The scope of variable is where the variable name can be seen. Here, x is visible only inside function foo().
The lifetime of a variable is the period over which it exists. If x were defined without the keyword static, the lifetime would be from the entry into foo() to the return from foo(); so it would be re-initialized to 5 on every call.
The keyword static acts to extend the lifetime of a variable to the lifetime of the programme; e.g. initialization occurs once and once only and then the variable retains its value - whatever it has come to be - over all future calls to foo().
Ref : https://bit.ly/3fOq7XP
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