Topic: mathematics-problem / Level: beginner

• 51. Create a program to find the sum of all even numbers in a given range.
• 52. Write a function to count the number of prime numbers less than a given number.
• 53. Implement a program to calculate the cube of a number.
• 54. Create a function to find the nth Fibonacci number using an iterative approach.
• 55. Write a program to determine if a number is a perfect cube.
• 56. Implement a function to check if a string is a valid email address.
• 57. Create a program to print the first n perfect squares.
• 58. Write a program to calculate the area of a rectangle given its length and width.
• 59. Implement a function to find the sum of an array of floats.
• 60. Create a program to count the number of even and odd numbers in a list.
• 61. Write a function to check if a string is a valid binary number.
• 62. Implement a program to print the digits of a number in sorted order.
• 63. Create a function to calculate the power of a number without using the pow function.
• 64. Write a program to determine if a number is a Harshad number.
• 65. Implement a function to find the sum of two matrices.
• 66. Create a program to calculate the perimeter of a triangle given its sides.
• 67. Write a program to find the minimum element in an array.
• 68. Implement a function to calculate the GCD of multiple numbers.
• 69. Create a program to find the largest element in an array.
• 70. Write a program to convert an angle from degrees to radians.
• 71. Implement a function to calculate the number of days between two dates.
• 72. Create a program to find the most frequent element in an array.
• 73. Write a program to find the absolute difference between the sum of the squares of two integers.
• 74. Implement a function to find the LCM of an array of numbers.
• 75. Create a program to calculate the distance between two points in 3D space.
• 76. Write a program to convert binary numbers to decimal.
• 77. Implement a function to calculate the standard deviation of a set of numbers.
• 78. Create a program to check if a number is a strong prime.
• 79. Write a function to find the intersection of two arrays.
• 80. Implement a program to sort an array of integers.
• 81. Create a program to find the mode of a dataset.
• 82. Write a function to calculate the binomial coefficient using a recursive approach.
• 83. Implement a program to find the count of all even digits in a number.
• 84. Create a function to check if a number is a friendly number.
• 85. Write a program to print the binary representation of a decimal number.
• 86. Implement a function to find the number of trailing zeroes in a factorial.
• 87. Create a program to calculate the sum of the first n prime numbers.
• 88. Write a program to generate Pascals triangle up to n rows.
• 89. Implement a function to convert Celsius to Kelvin.
• 90. Create a program to compute the harmonic series up to n.
• 91. Write a program to find the minimum and maximum of a list of numbers.
• 92. Implement a function to count the number of digits in a string representation of a number.
• 93. Create a program to check if a number is a palindrome in base 10.
• 94. Write a program to find the largest prime factor of a number.
• 95. Implement a function to find the number of combinations of n items taken k at a time.
• 96. Create a program to find the sum of all digits in a string.
• 97. Write a program to determine if a number is a perfect number.
• 98. Implement a function to check if a given year is a leap year.
• 99. Create a program to find the product of all digits in a number.
• 100. Write a program to check if two numbers are amicable.

• More Levels

• Intermediate
• Advanced