1. Write a program in C to evaluate the series S = 1 + 2 * 1 + 3 * 2 +…..N * N – 1. 2. Write a program in C to print the factorial of all the numbers from 1 to 15. 3. Write a program in C to generate...

2. Write a program in C to print the factorial of all the numbers from 1 to 15.

3. Write a program in C to generate and print the numbers between 100 and 200 which are divisible by 4 but not by 5. 4. What do you mean by arrays and strings? Explain with the help of an example.