Change the given Makefile so that your code compiles into a working binary program that executes the implementations above.

INSTRUCTIONS TO CANDIDATES

ANSWER ALL QUESTIONS

Instructions

1. Download the starter package from Canvas, you are given 2 template files: main.cpp, Makefile, and 3 test objects that you should not temper with: sub.h, sub.o, input.txt .

sub.h and sub.o contain the header and the binary of a pre-built function ready to use: int sub(int n, int *A, int *B, int *C);

While a sample input.txt always looks like this:

5

1 2 3

3 4 5

5 6 7

7 8 9

9 10 11

 

The first line defines the number of lines that follow. Each following line always contains 3 integers, separated by whitespaces.

 

2. In main.cpp, implement the following steps:

a. Load the first line of input.txt into an integer variable n;

b. Dynamically initialize three integer arrays of size n: A, B, and C;

 

c. Load each column starting from the second line of input.txt respectively into A, B, and C. E.g. A will become [1, 3, 5, 7, 9], B = [2, 4, 6, 8, 10], and likewise C

= [3, 5, 7, 9, 11].

d. Call the sub function with

sub(n, A, B, C);

and write the function's result into a new file output.txt.

3. Change the given Makefile so that your code compiles into a working binary program that executes the implementations above.

 

Rubrics

We will measure your performance based on the following checklist:

1. You have turned in an appropriate Documentation readme. (1pt)

2. You have turned in an appropriately modified Makefile. (1pt)

3. Your code generates correct outputs with the grader's own test input files. (2pt)

4. Your code handles File I/O and Dynamic Memory Allocation correctly. (1pt)

 

Attachments:

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