More Problems

• Create a program to determine if a given string is a valid number.
• Write a program to calculate the expected value of a random variable.
• Implement a function to find the next lexicographical permutation of a sequence.
• Create a program to compute the inverse of a matrix using Gaussian elimination.
• Write a program to check if a number is a perfect number.
• Implement a function to find the maximum product of a contiguous subarray in a circular array.
• Create a program to compute the sum of all prime numbers below a given limit.
• Write a program to find the longest common prefix among an array of strings.