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Basic programming exercises

  • Write a C program to perform input/output of all basic data types.
  • Write a C program to enter two numbers and find their sum.
  • Write a C program to enter two numbers and perform all arithmetic operations.
  • Write a C program to enter length and breadth of a rectangle and find its perimeter.
  • Write a C program to enter length and breadth of a rectangle and find its area.
  • Write a C program to enter radius of a circle and find its diameter, circumference and area.
  • Write a C program to enter length in centimeter and convert it into meter and kilometer.
  • Write a C program to enter temperature in Celsius and convert it into Fahrenheit.
  • Write a C program to enter temperature in Fahrenheit and convert to Celsius
  • Write a C program to convert days into years, weeks and days.
  • Write a C program to find power of any number x ^ y.
  • Write a C program to enter any number and calculate its square root.
  • Write a C program to enter two angles of a triangle and find the third angle.
  • Write a C program to enter base and height of a triangle and find its area.
  • Write a C program to calculate area of an equilateral triangle.
  • Write a C program to enter marks of five subjects and calculate total, average and percentage.
  • Write a C program to enter P, T, R and calculate Simple Interest.
  • Write a C program to enter P, T, R and calculate Compound Interest.

Conditional operators programming exercises

  • Write a C program to find maximum between two numbers using conditional operator.
  • Write a C program to find maximum between three numbers using conditional operator.
  • Write a C program to check whether a number is even or odd using conditional operator.
  • Write a C program to check whether year is leap year or not using conditional operator.
  • Write a C program to check whether character is an alphabet or not using conditional operator.

if...else programming exercises

  • Write a C program to find maximum between two numbers.
  • Write a C program to find maximum between three numbers.
  • Write a C program to change case of an alphabet.
  • Write a C program to check whether a number is negative, positive or zero.
  • Write a C program to check whether a number is divisible by 5 and 11 or not.
  • Write a C program to check whether a number is even or odd.
  • Write a C program to check whether a year is leap year or not.
  • Write a C program to check whether a character is alphabet or not.
  • Write a C program to input any alphabet and check whether it is vowel or consonant.
  • Write a C program to input any character and check whether it is alphabet, digit or special character.
  • Write a C program to check whether a character is uppercase or lowercase alphabet.
  • Write a C program to input week number and print week day.
  • Write a C program to input month number and print number of days in that month.
  • Write a C program to count total number of notes in given amount.
  • Write a C program to input angles of a triangle and check whether triangle is valid or not.
  • Write a C program to input all sides of a triangle and check whether triangle is valid or not.
  • Write a C program to check whether the triangle is equilateral, isosceles or scalene triangle.
  • Write a C program to find all roots of a quadratic equation.
  • Write a C program to calculate profit or loss.
  • Write a C program to input marks of five subjects Physics, Chemistry, Biology, Mathematics and Computer. Calculate percentage and grade according to following: Percentage >= 90% : Grade A Percentage >= 80% : Grade B Percentage >= 70% : Grade C Percentage >= 60% : Grade D Percentage >= 40% : Grade E Percentage < 40% : Grade F
  • Write a C program to input basic salary of an employee and calculate its Gross salary according to following: Basic Salary <= 10000 : HRA = 20%, DA = 80% Basic Salary <= 20000 : HRA = 25%, DA = 90% Basic Salary > 20000 : HRA = 30%, DA = 95%
  • Write a C program to input electricity unit charges and calculate total electricity bill according to the given condition: For first 50 units Rs. 0.50/unit For next 100 units Rs. 0.75/unit For next 100 units Rs. 1.20/unit For unit above 250 Rs. 1.50/unit An additional surcharge of 20% is added to the bill

Switch case programming exercises

  • Write a C program to print day of week name using switch case.
  • Write a C program print total number of days in a month using switch case.
  • Write a C program to check whether an alphabet is vowel or consonant using switch case.
  • Write a C program to find maximum between two numbers using switch case.
  • Write a C program to check whether a number is even or odd using switch case.
  • Write a C program to check whether a number is positive, negative or zero using switch case.
  • Write a C program to find roots of a quadratic equation using switch case.
  • Write a C program to create Simple Calculator using switch case.

Loop programming exercises

  • Write a C program to print all natural numbers from 1 to n. - using while loop
  • Write a C program to print all natural numbers in reverse (from n to 1). - using while loop
  • Write a C program to print all alphabets from a to z. - using while loop
  • Write a C program to print all even numbers between 1 to 100. - using while loop
  • Write a C program to print all odd number between 1 to 100.
  • Write a C program to find sum of all natural numbers between 1 to n.
  • Write a C program to find sum of all even numbers between 1 to n.
  • Write a C program to find sum of all odd numbers between 1 to n.
  • Write a C program to print multiplication table of any number.
  • Write a C program to count number of digits in a number.
  • Write a C program to find first and last digit of a number.
  • Write a C program to find sum of first and last digit of a number.
  • Write a C program to swap first and last digits of a number.
  • Write a C program to calculate sum of digits of a number.
  • Write a C program to calculate product of digits of a number.
  • Write a C program to enter a number and print its reverse.
  • Write a C program to check whether a number is palindrome or not.
  • Write a C program to find frequency of each digit in a given integer.
  • Write a C program to enter a number and print it in words.
  • Write a C program to print all ASCII character with their values.
  • Write a C program to find power of a number using for loop.
  • Write a C program to find all factors of a number.
  • Write a C program to calculate factorial of a number.
  • Write a C program to find HCF (GCD) of two numbers.
  • Write a C program to find LCM of two numbers.
  • Write a C program to check whether a number is Prime number or not.
  • Write a C program to print all Prime numbers between 1 to n.
  • Write a C program to find sum of all prime numbers between 1 to n.
  • Write a C program to find all prime factors of a number.
  • Write a C program to check whether a number is Armstrong number or not.
  • Write a C program to print all Armstrong numbers between 1 to n.
  • Write a C program to check whether a number is Perfect number or not.
  • Write a C program to print all Perfect numbers between 1 to n.
  • Write a C program to check whether a number is Strong number or not.
  • Write a C program to print all Strong numbers between 1 to n.
  • Write a C program to print Fibonacci series up to n terms.
  • Write a C program to find one's complement of a binary number.
  • Write a C program to find two's complement of a binary number.
  • Write a C program to convert Binary to Octal number system.
  • Write a C program to convert Binary to Decimal number system.
  • Write a C program to convert Binary to Hexadecimal number system.
  • Write a C program to convert Octal to Binary number system.
  • Write a C program to convert Octal to Decimal number system.
  • Write a C program to convert Octal to Hexadecimal number system.
  • Write a C program to convert Decimal to Binary number system.
  • Write a C program to convert Decimal to Octal number system.
  • Write a C program to convert Decimal to Hexadecimal number system.
  • Write a C program to convert Hexadecimal to Binary number system.
  • Write a C program to convert Hexadecimal to Octal number system.
  • Write a C program to convert Hexadecimal to Decimal number system.
  • Write a C program to print Pascal triangle upto n rows.

Star pattern programming exercises

Square Star Pattern

Hollow Square Star Pattern

Hollow Square Star Pattern with Diagonal

*****

Rhombus Star Pattern

*****

Hollow Rhombus Star Pattern

*****

Mirrored Rhombus Star Pattern

*****

Hollow Mirrored Rhombus Star Pattern

**

Right Triangle Star Pattern

**

Hollow Right Triangle Star Pattern

*

**

Mirrored Right Triangle Star Pattern

*

**

Hollow Mirrored Right Triangle Star Pattern

** * Inverted Right Triangle Star Pattern

** * Hollow Inverted Right Triangle Star Pattern

** * Inverted Mirrored Right Triangle Star Pattern

** * Hollow Inverted Mirrored Right Triangle Star Pattern

*

Pyramid Star Pattern

*

  • *

Hollow Pyramid Star Pattern

*

Inverted Pyramid Star Pattern

  • *

*

Hollow Inverted Pyramid Star Pattern

**

** * Half Diamond Star Pattern

*

**

** * Mirrored Half Diamond Star Pattern

*

*

Diamond Star Pattern

  •    *

  •    *

Hollow Diamond Star Pattern

***
  **
    *
  **
***

Right Arrow Star Pattern

*****

** * **

*****

Left Arrow Star Pattern

+
+
+
+

+++++++++ + + + + Plus Star Pattern

  •   *

  • *

*

  • *

  •   *

X Star Pattern

Eight Star Pattern

***********
 *********
  *******
   *****
    ***
     *

Heart Star Pattern

*KHWOPACODE

***********
 *********
  *******
   *****
    ***
     *

Heart Star Pattern with Name

Number pattern programming exercises

Square number patterns 11111 11111 11111 11111 11111 Number pattern 1

11111 00000 11111 00000 11111 Number pattern 2

01010 01010 01010 01010 01010 Number pattern 3

11111 10001 10001 10001 11111 Number pattern 4

11111 11111 11011 11111 11111 Number pattern 5

10101 01010 10101 01010 10101 Number pattern 6

11011 11011 00000 11011 11011 Number pattern 7

10001 01010 00100 01010 10001 Number pattern 8

01110 10001 10001 10001 01110 Number pattern 9

11111 22222 33333 44444 55555 Number pattern 10

12345 12345 12345 12345 12345 Number pattern 11

12345 23456 34567 45678 56789 Number pattern 12

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Number pattern 13

55555 54444 54333 54322 54321 Number pattern 14

12345 23455 34555 45555 55555 Number pattern 15

12345 23451 34521 45321 54321 Number pattern 16

12345 21234 32123 43212 54321 Number pattern 17

5 5 5 5 5 5 5 5 5 5 4 4 4 4 4 4 4 5 5 4 3 3 3 3 3 4 5 5 4 3 2 2 2 3 4 5 5 4 3 2 1 2 3 4 5 5 4 3 2 2 2 3 4 5 5 4 3 3 3 3 3 4 5 5 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 Number pattern 18

1 2 3 4 5 16 17 18 19 6 15 24 25 20 7 14 23 22 21 8 13 12 11 10 9 Number pattern 19

Triangle Easy Number Patterns 1 22 333 4444 55555 Number pattern 20

55555 4444 333 22 1 Number pattern 21

11111 2222 333 44 5 Number pattern 22

5 44 333 2222 11111 Number pattern 23

1 12 123 1234 12345 Number pattern 24

12345 1234 123 12 1 Number pattern 25

1 21 321 4321 54321 Number pattern 26

54321 4321 321 21 1 Number pattern 27

5 54 543 5432 54321 Number pattern 28

54321 5432 543 54 5 Number pattern 29

5 45 345 2345 12345 Number pattern 30

12345 2345 345 45 5 Number pattern 31

1 23 345 4567 56789 Number pattern 32

56789 4567 345 23 1 Number pattern 33

13579 3579 579 79 9 Number pattern 34

Triangle 0,1 Easy Number Patterns 1 10 101 1010 10101 Number pattern 35

1 00 111 0000 11111 Number pattern 36

1 01 010 1010 10101 Number pattern 37

1 11 101 1001 11111 Number pattern 38

Triangle Hard Number Patterns 1 123 12345 1234567 123456789 Number pattern 39

1 24 135 2468 13579 Number pattern 40

1 131 13531 1357531 135797531 Number pattern 41

2 242 24642 2468642 2468108642 Number pattern 42

1 121 12321 1234321 123454321 Number pattern 43

1 32 4543 567654 67898765 Number pattern 44

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Number pattern 45

1 21 123 4321 12345 Number pattern 46

1 23 4567 89123456 7891234567891234 Number pattern 47

1 1 12 21 123 321 1234 4321 1234554321 Number pattern 48

1
2 6 3 7 10 4 8 11 13 5 9 12 14 15 Number pattern 49

1 2 4 7 11 16 22 29 37 46 56 67 79 92 106 Number pattern 50

1 3 2 4 5 6 10 9 8 7 11 12 13 14 15 Number pattern 51

1 22 333 2222 11111 Number pattern 52

N = 12345

12345 1234 123 12 1 Number pattern 53

N = 12345

12345 2345 345 45 5 Number pattern 54

Diamond Number Patterns 1 12 123 1234 12345 1234 123 12 1 Number pattern 55

1 123 12345 1234567 123456789 1234567 12345 123 1 Number pattern 56

1 121 12321 1234321 123454321 1234321 12321 121 1 Number pattern 57

1 121 12321 1234321 123454321 1234321 12321 121 1 * Number pattern 58

Tricky Number Patterns 1 1 2 2 3 3 4 4 5 4 4 3 3 2 2 1 1 Number pattern 59