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| C Language Best Practice Set All Questions |
C Programming problems exercises for Beginners
C Language Practice Set 1 Questions with Answers
Q 1. Write a program area of the rectangle through user input.
#include<stdio.h> int main() { int length=3; int breadth=8; int area = length*breadth; printf("The area of this rectangle is %d:", area); return 0; } |
Q 2. Write a program to calculate the area of a circle and modify the same program to
calculate the volume of a cylinder given its radius and height.
#include <stdio.h> int main() { int radius = 3; float pi = 3.14; printf("The area of this circle is %f\n", pi * radius * radius); int height = 3; printf("Volume of this cylinder is %f\n", pi * radius * radius * height); return 0; } |
Q 3. Write a program to convert calculus(centigrade degree temperature to Fahrenheit)
#include<stdio.h> int main() { float celsius = 37, far; far = (celsius * 9 / 5) + 32; printf("The value of this celsius temperature in Fahrenheit is %f", far); return 0; } |
Q 4. Write a program to calculate simple interest for a set of values representing principle, no of year, and rate of interest.
#include<stdio.h> int main() { int principal=100, rate=4, years=1; int simpleInterest = (principal * rate * years)/100; printf("The value of simple Interest is %d", simpleInterest); return 0; } |
C Language Practice Set 2 Questions with Answers
Q 1. Which of the following is invalid in c?
(a)
int a; b=a;
(b)
int v=3^3;
(c) char dt=21 dec 2022;
Q 2. What data type will 3.0/8-2 return?
Q 3. Write a program to check whether a number is divisible by 97 or not.
Q 4. Explain step by step evaluation of 3*x/y-z+R where x=2, y=3 z=3,R=1
Q 5. 3.0+1 will be?
(a)
integer number
(b)
floating point number
(c) character
C Language Practice Set 3 Questions with Answers
Q 1. What will be the output of this program?
int
a=10;
if(a=11)
printf("i
am 11");
{
printf("
i am not 11");
}
Q 2. Write a program to find out whether a student is pass or fails if the required total of 40% and at least 33% in each subject passes.
Assume 3 subjects and take marks as input from the user.
Q 3. Calculate income tax paid by an employee to the government as per the sales
maintained below?
Income
Sales Tax
2.5L
50.L 5%
5.0L
10.0L 20%
Above 10.0L 30%
Note: There is no tax below 2.5L. Take the income amount as input from the user.
Q 4. Write a program to find whether a year entered by the user is a leap year or not. Take a year as input from the user.
C Language Practice Set 4 Questions with Answers
Q
1. Write a program to print multiplication take of a given number n.
Q
2. Write a program to print multiplication take of 10 in reverse order.
Q
3. a do while loop is executed:
(a)
At least once
(b)
At lease Twice
(c) At most once
Q
4. What can be done using one type of loop can also be done using the other two
types of loops true or false.
Q
5. Write a program to sum the first ten natural numbers using a while loop.
Q
6. Write a program to implement program 5 using for and do while loop.
Q
7. Write a program to calculate the sum of the numbers occurring in
multiplication take of 8(consider 8x1 to 8x10).
Q
8. Write a program to calculate the factorial of a given number using for loop.
Q
9. Repeat 8 using while loops
Q
10. Write a program to check whether a given number is prime or not using a loop?
Q
11. Implement 10 using other types of
loops.
C Language Practice Set 5 Questions with Answers
Q
1. Write a program using a function to find the average of their numbers.
Q
2. Write a function to convert the Celcius temperature into Fahrenheit.
Q
3. Write a function to calculate force attraction on a body of mass earth
(g=9.8 m/s2).
Q
4. Write a program using recursion to calculate the nth element of the fabinachi
series.
Q
5. What will the following line produce is a C
program:Printf("%d%d%d\n",a,++a,a++);
Q
6. Write a recursion function to calculate the sum of first natural numbers.
Q
7. Write a program using functions to print the following pattern(first n
lines).
*
* * *
* * * * *
C Language Practice Set 6 Questions with Answers
Q
1. Write a program to print the address of variables. Use this address to get
the value of this variable.
Q
2. write a program having a variable i.print the address of i. Pass the
variable to function and print its address.
Q
3. Write a program to change the value of a variable to 10 times its current
value. Write a function and pass the value by reference.
Q
4. Write a program using a function that calculates the sum and average of two
numbers. Use pointers and print the values of the sum in main().
Q
5. Write a program to print the value of variable I by using the "Pointer
to Pointer" type of variable.
Q 6. Try the problem using call by value and verify that it does not change the value of the said variable.
C Language Practice Set 7 Questions with Answers
Q
1. Create an array of 10 numbers verify using pointer arithmetic that(ptr+2)
points to the third element where ptr is a pointer pointing to the first
element of the array.
Q
2. If s[3] is a 1-D array of integers then *(s+3) refers to the third element:
(a)
True
(b)
False
(c)
Depends
Q
3. Write a program to create an array of 10 integers and store multiplication
take of 5 in it.
Q
4. Repeat problem 3 for a general input provided by the user using scanf.
Q
5. Write a program containing a function that reverses the array passed to
it.
Q
6. Write a program containing a function that counts the number of positive
integers in an array.
Q
7. Create an array of size 3x10 containing multiplication takes of the numbers
2,7 and respectively.
Q
8. Repeat problem 7 for a custom input given by the user.
Q
9. Create a 3-D array and print the address of its elements in increasing order.
C Language Practice Set 8 Questions with Answers
Q
1. Which of the following is used to appropriately read a multi-word string
(a)
puts()
(b)
gets()
(c)
printf()
(d)
scanf()
Q
2. Write a program to take a string as input from the user using %c and %s to confirm that the string is equal.
Q
3. Write your own version of the strlen function from <string.h>
Q
4. Write a functioning slice() to slice a string. It Should change the original
string such that is now the sliced string. Take m and n as the start and end
positions for the slice.
Q
5. Write your own version of the strcpy function from <string.h>
Q
6. Write a program to encrypt a string by adding 1 to the Asci value of its
characters.
Q
7. Write a program to decrypt the encrypted using encrypt function in problem
6.
Q
8. Write a program to count the occurrence of a given character in a string.
Q
9. Write a program to check whether a given character is present in a string or
not.
C Language Practice Set 9 Questions with Answers
Q
1. Create a 2-D vector using structure in C.
Q
2. Write a function sum vector that returns the sum of two vectors passed to
it. the vectors must be 2-D.
Q
3. 20 Integers are to be stored in memory what will you prefer-array or
structure.
Q
4. Write a program to illustrate the use of the arrow operator-> in C.
Q
5. Write a program with a structure representing a complex number.
Q
6. Create an array of 5 complex numbers created in problem 5 and display them
with the help of a display function. The Values must be taken as input from
the user.
Q
7. Write a problem structure using the typedef keyword.
Q
8. Create a structure representing a bank account of a customer. what fields
did you use and why?
Q
9. Write a structure capable of storing data. write a function to compare those
dates.
Q
10. Write a problem for time using the typedef keyword.
C Language Practice Set 10 Questions with Answers
Q
1. Write a program to read their integer from a file.
Q
2. Write a program to generate a multiplication take of a given number in text
format. Make sure that the file is readable and well formatted.
Q
3. Write a program to read a text file character by character and write its
content twice in a separate file.
Q
4. Take the name salary of to employees as input from the user and write them to a
text file in the following format:
name1=3300
name2=3700
Q
5. Write a program to modify a file containing an integer to double its value.
C Language Practice Set 11 Questions with Answers
Q 1. Write a program to dynamically create an array of size 6 capable of storing 6 integer numbers using calloc
Q
2. Create an array dynamically capable of storing 5 integer numbers. use realloc
so that it can now store 10 integers number.
Q
3. Create an array of multiplication take of 7 upto(7x10=70). use realloc to
make it store 15 numbers(from 7x1 to 7x15).
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