Problem 1:

-2 pts for syntax errors
-5pts for no sorting but just checking whether the numbers are in the right order
-3pts for incorrect sorting
-4pts for using if/elseif instead of ? operator

Problem 2:

-2pts for syntax errors
-2pts for incorrect input
-2pts for not considering capital letters
-3pts for not counting the number of vowels in the string

Problem 3:

-2pts for syntax errors
-2pts for using cout<< instead of std::ofstream declared before
-4pts for incorrect file input/output code
-4pts for incorrect for loop (loop has to run from i=33 to i=126)
-4pts for incorrect output (not outputting i, i+1, i+2 in one line)
-4pts for incorrect typecasting (eg, not outputting the character but just giving an int instead)
-4pts for incorrect line breaking (lines should be broken every 3 lines)

Problem 4:

-2pts for syntax errors
-2pts for not using a function that takes integer n as argument
-4pts, use a random seed to get new random numbers every time
-4pts, the function doesn't ask the user to input n

Problem 5:

-2pts for syntax errors
-4pts not taking care of signs in the summation
-4pts Using pi = 3.14 instead of calling the function defined above.
-2pts for not defining a function that takes integer n as argument
-2pts for not including the computed value of f(250) as part of the answer.


Problem 6:

-2pts for syntax errors
-2pts for incorrect stopping condition: The first 50 odd numbers greater than one are 3,5,7,...,101.
-6pts for incorrect loop: The first 50 odd numbers greater than one are 3,5,7,...,101.
-4pts for incorrect logic: you only output "false" if none of the integers divide n, so that cout statement should be outside the for loop.
-10pts, missing crucial logic on how to figure out if a number is divisible by any of the odd numbers in the given range.