Create a program that accepts a non-negative float as input and returns a float that has just the digits after the decimal point. Enterber: 1.5 After the decimal: 5

for C++ write a progam for the greatest common divisor of integers x and y is the largest integer that evenly divides both x and y. Write a recursive function gcd that returns the greatest common divisor of x and y. The gcd of x and y is defined recursively as follows. If y is 0 the answer is x; otherwise gcd(x, y) is gcd(y, x%y).

IN HASKELL PROGRAMMING LANGUAGE PLEASE     In case you do not know it: the game is played on a 3x3 grid that is initially empty. Two players are playing, by alternatingly making moves. A move by a player places their token (an X for player 1, an O for player 2) into a cell that was empty. We are using algebraic notations for indexing the positions in the board, with A,B,C indexing the columns and 1,2,3 the rows. Specifically, these coordinates would be used in the implementation for moves made by a human player. If the X X O Figure 1: Sample board position same token appears 3 times in any of the three columns, three rows or two main diagonals the game is over and that player wins. If the grid is filled without that happening the game is a draw. For the depicted board, we have Xs in positions C3 and A2, and an O in position B1. It would be O’s turn to make a move; a legal move would be C2, but it is not a good move, because X can force a win by responding A1. O cannot force a win, but…

In order to make advantage of OOP in C++, which header file is required? Which characteristic makes it possible to do open recursion?

I'm stuck on this question and I don't know how I should be approaching this. What should I do? Our focus is on pointers and dynamic arrays through C++