The question is C++ , Not java , i need the answer within 60min please , thanks

Question 15 13 Points Write a function called "Replace_Alls that accepts two parameters: a matrix of 10x20 elements of type integer and an integer value y. The function must: Replace every positive matrix element by the value +5, and Replace every negative matrix element by the value -5, and Replace every zero by the value y. . . Use the editor to format your answer 1 Point Question 16 L following code segment will open a file called MyFile.dat