C Programming

Write a function using fscanf(), fprintf(), fopen(), and fclose() to read a file (in.dat) which contains two vectors and output it to a new file called out.dat.

Let's say each vector has 4 elements, first vector (1, 2, 3, 4),second vector (6, 7, 8, 9). There should be two double type arrays to store the elements of the first vector and the elements of the second vector. In below example, in the first line, the number of elements is specified as a positive integer, which is 4 in this case. In the next line, it has the first element of the first vector and the first element of the second vector and so on.

The format in the in.dat file should be like this:

4

1 6

2 7

3 8

4 9

The format in out.dat file should be like this:

4

1.000 6.000

2.000 7.000

3.000 8.000

4.000 9.000