Basic-Programming-Problems

This repository has some basic c programs required while learning c programming to clear all basic concepts like decision making, arrays, string, functions, pointers. These problem statements can also be used while learning any programming language.

Following are the problem Statements:-

1. Write a C program to enter two numbers and find their sum.

2. Write a C program to enter two numbers and perform all arithmetic operations.

3. Write a C program to enter length and breadth of a rectangle and find its perimeter.

4. Write a C program to enter length and breadth of a rectangle and find its area.

5. Write a C program to enter radius of a circle and find its diameter, circumference and area.

6. Write a C program to enter length in centimeter and convert it into meter and kilometer.

7. Write a C program to enter temperature in °Celsius and convert it into °Fahrenheit.

8. Write a C program to enter temperature in Fahrenheit(°F) and convert it into Celsius(°C)

9. Write a C program to convert days into years, weeks and days.

10. Write a C program to find power of any number x ^ y.

11. Write a C program to enter any number and calculate its square root.

12. Write a C program to enter two angles of a triangle and find the third angle.

13. Write a C program to enter base and height of a triangle and find its area.

14. Write a C program to calculate area of an equilateral triangle.

15. Write a C program to enter marks of five subjects and calculate total, average and percentage.

16. Write a C program to enter P, T, R and calculate Simple Interest.

17. Write a C program to enter P, T, R and calculate Compound Interest.

18. Write a C program to check Least Significant Bit (LSB) of a number is set or not.

19. Write a C program to check Most Significant Bit (MSB) of a number is set or not.

20. Write a C program to get nth bit of a number.

21. Write a C program to set nth bit of a number.

22. Write a C program to clear nth bit of a number.

23. Write a C program to toggle nth bit of a number.

24. Write a C program to get highest set bit of a number.

25. Write a C program to get lowest set bit of a number.

26. Write a C program to count trailing zeros in a binary number.

27. Write a C program to count leading zeros in a binary number.

28. Write a C program to flip bits of a binary number using bitwise operator.

29. Write a C program to total number of zeros and ones in a binary number.

30. Write a C program to convert decimal to binary number system using bitwise operator.

31. Write a C program to swap two numbers using bitwise operator.

32. Write a C program to check whether a number is even or odd using bitwise operator.

33. Write a C program to find maximum between two numbers.

34. Write a C program to find maximum between three numbers.

35. Write a C program to check whether a number is negative, positive or zero.

36. Write a C program to check whether a number is divisible by 5 and 11 or not.

37. Write a C program to check whether a number is even or odd.

38. Write a C program to check whether a year is leap year or not.

39. Write a C program to check whether a character is alphabet or not.

40. Write a C program to input any alphabet and check whether it is vowel or consonant.

41. Write a C program to input any character and check whether it is alphabet, digit or special character.

42. Write a C program to check whether a character is uppercase or lowercase alphabet.

43. Write a C program to input week number and print week day.

44. Write a C program to input month number and print number of days in that month.

45. Write a C program to count total number of notes in given amount.

46. Write a C program to input angles of a triangle and check whether triangle is valid or not.

47. Write a C program to input all sides of a triangle and check whether triangle is valid or not.

48. Write a C program to check whether the triangle is equilateral, isosceles or scalene triangle.

49. Write a C program to find all roots of a quadratic equation.

50. Write a C program to calculate profit or loss.

51. 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

52. 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%

53. 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

54. Write a C program to print day of week name using switch case.

55. Write a C program print total number of days in a month using switch case.

56. Write a C program to check whether an alphabet is vowel or consonant using switch case.

57. Write a C program to find maximum between two numbers using switch case.

58. Write a C program to check whether a number is even or odd using switch case.

59. Write a C program to find roots of a quadratic equation using switch case.

60. Write a C program to create Simple Calculator using switch case.

61. Write a C program to print all natural numbers from 1 to n. - using while loop

62. Write a C program to print all natural numbers in reverse (from n to 1). - using while loop

63. Write a C program to print all alphabets from a to z. - using while loop

64. Write a C program to print all even numbers between 1 to 100. - using while loop

65. Write a C program to print all odd number between 1 to 100.

66. Write a C program to find sum of all natural numbers between 1 to n.

67. Write a C program to find sum of all even numbers between 1 to n.

68. Write a C program to find sum of all odd numbers between 1 to n.

69. Write a C program to print multiplication table of any number.

70. Write a C program to count number of digits in any number.

71. Write a C program to find first and last digit of any number.

72. Write a C program to find sum of first and last digit of any number.

73. Write a C program to swap first and last digits of any number.

74. Write a C program to calculate sum of digits of any number.

75. Write a C program to calculate product of digits of any number.

76. Write a C program to enter any number and print its reverse.

77. Write a C program to enter any number and check whether the number is palindrome or not.

78. Write a C program to find frequency of each digit in a given integer.

79. Write a C program to enter any number and print it in words.

80. Write a C program to print all ASCII character with their values.

81. Write a C program to find power of any number using for loop.

82. Write a C program to enter any number and print all factors of the number.

83. Write a C program to enter any number and calculate its factorial.

84. Write a C program to find HCF (GCD) of two numbers.

85. Write a C program to find LCM of two numbers.

86. Write a C program to check whether a number is Prime number or not.

87. Write a C program to print all Prime numbers between 1 to n.

88. Write a C program to find sum of all prime numbers between 1 to n.

89. Write a C program to enter any number and print its prime factors.

90. Write a C program to check whether a number is Armstrong number or not.

91. Write a C program to print all Armstrong numbers between 1 to n.

92. Write a C program to check whether a number is Perfect number or not.

93. Write a C program to print all Perfect numbers between 1 to n.

94. Write a C program to check whether a number is Strong number or not.

95. Write a C program to print all Strong numbers between 1 to n.

96. Write a C program to print Fibonacci series up to n terms.

97. Write a C program to find one's complement of a binary number.

98. Write a C program to find two's complement of a binary number.

99. Write a C program to convert Binary to Octal number system.

100. Write a C program to convert Binary to Decimal number system.

101. Write a C program to convert Binary to Hexadecimal number system.

102. Write a C program to convert Octal to Binary number system.

103. Write a C program to convert Octal to Decimal number system.

104. Write a C program to convert Octal to Hexadecimal number system.

105. Write a C program to convert Decimal to Binary number system.

106. Write a C program to convert Decimal to Octal number system.

107. Write a C program to convert Decimal to Hexadecimal number system.

108. Write a C program to convert Hexadecimal to Binary number system.

109. Write a C program to convert Hexadecimal to Octal number system.

110. Write a C program to convert Hexadecimal to Decimal number system.

111. Write a C program to print Pascal triangle upto n rows.

112. Star pattern programs - Write a C program to print the given star patterns.

113. Number pattern programs - Write a C program to print the given number patterns.

114. Write a C program to read and print elements of array. - using recursion.

115. Write a C program to print all negative elements in an array.

116. Write a C program to find sum of all array elements. - using recursion.

117. Write a C program to find maximum and minimum element in an array. - using recursion.

118. Write a C program to find second largest element in an array.

119. Write a C program to count total number of even and odd elements in an array.

120. Write a C program to count total number of negative elements in an array.

121. Write a C program to copy all elements from an array to another array.

122. Write a C program to insert an element in an array.

123. Write a C program to delete an element from an array at specified position.

124. Write a C program to print all unique elements in the array.

125. Write a C program to count total number of duplicate elements in an array.

126. Write a C program to delete all duplicate elements from an array.

127. Write a C program to count frequency of each element in an array.

128. Write a C program to merge two array to third array.

129. Write a C program to find reverse of an array.

130. Write a C program to put even and odd elements of array in two separate array.

131. Write a C program to search an element in an array.

132. Write a C program to sort array elements in ascending order.

133. Write a C program to sort array elements in descending order.

134. Write a C program to sort even and odd elements of array separately.

135. Write a C program to left rotate an array.

136. Write a C program to right rotate an array.

137. Write a C program to add two matrices.

138. Write a C program to subtract two matrices.

139. Write a C program to perform Scalar matrix multiplication.

140. Write a C program to multiply two matrices.

141. Write a C program to check whether two matrices are equal or not.

142. Write a C program to find sum of main diagonal elements of a matrix.

143. Write a C program to find sum of minor diagonal elements of a matrix.

144. Write a C program to find sum of each row and column of a matrix.

145. Write a C program to interchange diagonals of a matrix.

146. Write a C program to find upper triangular matrix.

147. Write a C program to find lower triangular matrix.

148. Write a C program to find sum of upper triangular matrix.

149. Write a C program to find sum of lower triangular matrix.

150. Write a C program to find transpose of a matrix.

151. Write a C program to find determinant of a matrix.

152. Write a C program to check Identity matrix.

153. Write a C program to check Sparse matrix.

154. Write a C program to check Symmetric matrix.

155. Write a C program to find maximum between two numbers using conditional/ternary operator.

156. Write a C program to find maximum between three numbers using conditional/ternary operator.

157. Write a C program to check whether a number is even or odd using conditional/ternary operator.

158. Write a C program to check whether year is leap year or not using conditional/ternary operator.

159. Write a C program to check whether character is an alphabet or not using conditional/ternary operator.

160. Write a C program to find length of a string.

161. Write a C program to copy one string to another string.

162. Write a C program to concatenate two strings.

163. Write a C program to compare two strings.

164. Write a C program to convert lowercase string to uppercase.

165. Write a C program to convert uppercase string to lowercase.

166. Write a C program to toggle case of each character of a string.

167. Write a C program to find total number of alphabets, digits or special character in a string.

168. Write a C program to count total number of vowels and consonants in a string.

169. Write a C program to count total number of words in a string.

170. Write a C program to find reverse of a string.

171. Write a C program to check whether a string is palindrome or not.

172. Write a C program to reverse order of words in a given string.

173. Write a C program to find first occurrence of a character in a given string.

174. Write a C program to find last occurrence of a character in a given string.

175. Write a C program to search all occurrences of a character in given string.

176. Write a C program to count occurrences of a character in given string.

177. Write a C program to find highest frequency character in a string.

178. Write a C program to find lowest frequency character in a string.

179. Write a C program to count frequency of each character in a string.

180. Write a C program to remove first occurrence of a character from string.

181. Write a C program to remove last occurrence of a character from string.

182. Write a C program to remove all occurrences of a character from string.

183. Write a C program to remove all repeated characters from a given string.

184. Write a C program to replace first occurrence of a character with another in a string.

185. Write a C program to replace last occurrence of a character with another in a string.

186. Write a C program to replace all occurrences of a character with another in a string.

187. Write a C program to find first occurrence of a word in a given string.

188. Write a C program to find last occurrence of a word in a given string.

189. Write a C program to search all occurrences of a word in given string.

190. Write a C program to count occurrences of a word in a given string.

191. Write a C program to remove first occurrence of a word from string.

192. Write a C program to remove last occurrence of a word in given string.

193. Write a C program to remove all occurrence of a word in given string.

194. Write a C program to trim leading white space characters in a string.

195. Write a C program to trim trailing white space characters in a string.

196. Write a C program to trim both leading and trailing white space characters in a string.

197. Write a C program to remove all extra blank spaces from a given string.

198. Write a C program to find cube of any number using function.

199. Write a C program to find diameter, circumference and area of circle using functions.

200. Write a C program to find maximum and minimum between two numbers using functions.

201. Write a C program to check whether a number is even or odd using functions.

202. Write a C program to check whether a number is prime, Armstrong or perfect number using functions.

203. Write a C program to find all prime numbers between given interval using functions.

204. Write a C program to print all strong numbers between given interval using functions.

205. Write a C program to print all armstrong numbers between given interval using functions.

206. Write a C program to print all perfect numbers between given interval using functions.

207. Write a C program to find power of any number using recursion.

208. Write a C program to print all natural numbers between 1 to n using recursion.

209. Write a C program to print all even or odd numbers in given range using recursion.

210. Write a C program to find sum of all natural numbers between 1 to n using recursion.

211. Write a C program to find sum of all even or odd numbers in given range using recursion.

212. Write a C program to find reverse of any number using recursion.

213. Write a C program to check whether a number is palindrome or not using recursion.

214. Write a C program to find sum of digits of a given number using recursion.

215. Write a C program to find factorial of any number using recursion.

216. Write a C program to generate nth Fibonacci term using recursion.

217. Write a C program to find GCD (HCF) of two numbers using recursion.

218. Write a C program to find LCM of two numbers using recursion.

219. Write a C program to display all array elements using recursion.

220. Write a C program to find sum of elements of array using recursion.

221. Write a C program to find maximum and minimum elements in array using recursion.