Now, some practice problems from my side:

[Basil_1]

Write a program which finds the factorial of a number entered by the user. (check for all conditions) (Beginner).
Create a program which generates fibonacci series till a number 'n' where 'n' is entered by the user. For eg. if the user enters 10 then the output would be: 1 1 2 3 5 8 (beginner)
Write a program to simulate a simple calculator. It should accept two number from the user along with the required operation to be performed. Addition, Subtraction, Division and Multiplication are the basic operations that should be implemented. Feel free to implement the other operations (Beginner)
Create a simple Palindrome checker program. The program should allow the user to enter a string and check whether the given string is a palindrome or not. Only digits and alphabets should be considered while checking for palindromes -- any other characters are to be ignored. (Intermediate)
Implement your own strstr function. (Intermediate)
Write a program which will print all the pairs of prime numbers whose sum equals the number entered by the user. ( suggested by Aniseed ) (Intermediate)
Write a program which will perform the job of moving the file from one location to another. The source and destination path will be entered by the user. Perform the required error checking and handle the exceptions accordingly. (Intermediate)
Write a program which performs addition, subtraction, multiplication of matrices. The dimensions of both the matrices would be specified by the user (dynamic memory allocation required). Use of structure or a class to define the matrix would be a good idea. (Exper

[mike_2000_17]

We won't do your homework for you. If you are trying to solve one of these problems and you are encountering problems doing so, then you should post what you have and tell us what specific things you are having trouble with.

[<M/>]

yawn no sign of effort = no point of assistance...