More Problems

• Write a program to check if a number is a perfect number.
• Implement a function to calculate the area of a sector given the radius and angle.
• Create a program to find the number of permutations of a string with duplicates.
• Write a program to compute the coefficients of a binomial expansion.
• Implement a function to calculate the number of unique paths in a grid.
• Create a program to check if a string contains balanced parentheses.
• Write a program to find the maximum sum of non-adjacent elements in an array.
• Implement a function to generate all combinations of a given string.