Instructions for problems involving functions and helper code



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Submission instructions for problems involving functions and helper code

The submission instructions for questions involving functions are different from other questions.

A helper code has been provided to you which contains the main_program that calls the function to be implemented. You are required to write this function in a separate file and upload only this file. To make it clear, here is an example sample question.


Q0 Sample question

Description


Write a function that takes two integers a,b as input and returns their sum.

Function to implement


int add(int a, int b)

Input Format


Two integers

Output Format


An integer

Constraints


-104 <= a,b <= 104

Sample Input


-6 10

Sample Output


4

Filename to submit


add.cpp

Solution


You are supposed to download the helper code from BodhiTree. In this case, the helper code will be named add_main.cpp and will contain the following code

#include

int add(int a, int b);        // function declaration is required during compilation

main_program

{

    int a,b;



    cin >> a >> b;

    cout << add(a, b) << endl;

}

Now you create a solution file named add.cpp and write the function definition as



#include

int add(int a, int b)

{

    return a+b;



}

On Linux and MacOS, you can use the following command to compile your program

s++ add_main.cpp add.cpp



On Windows, in Simple CodeBlocks, copy the function code in the helper code file, below the main_program as shown below.

#include

int add(int a, int b);        // function declaration is required during compilation

main_program

{

    int a,b;



    cin >> a >> b;

    cout << add(a, b) << endl;

}

// #include  // do not include simplecpp again



int add(int a, int b)

{

    return a+b;



}

This is only to compile and run as usual to check. Note that this is only for checking that the function implementation is correct.

Finally upload the solution file add.cpp that only contains the function implementation, and not the main_program. Do not upload the helper code file add_main.cpp.

Write a function that takes the coordinates of three non-collinear points p1, p2, p3 along with the coordinates of a query point q as input, and returns true if the query point lies on the plane formed by p1, p2, p3, else it returns false. The function should also calculate the distance of the query point q from this plane and store it in the last parameter dist.

Function to implement

bool point_on_plane(double* p1_x, double* p1_y, double* p1_z, double* p2_x, double* p2_y, double* p2_z, double* p3_x, double* p3_y, double* p3_z, double* q_x, double* q_y, double* q_z, double* dist)

Input Format

12 real numbers (space separated)

Output Format

An integer (either 1 or 0 representing if q lies on plane)

A real number representing the distance of q from the plane. The output should be correct upto 2 decimal places.
In order to force cout to always print 2 digits after the decimal point, do the following before printing the output with cout

cout << fixed; // uses fixed floating point representation

cout.precision(2); // print two digits after the decimal point

Constraints

Each of the coordinates are real numbers that lie between -103 and 103

Sample Input 1

0 0 1 1 2 3 2 3 4 7 6 8

Sample Output 1

0 0.71

Sample Input 2



0.0 0.0 0.0 1.0 1.0 1.0 1.0 2.0 3.0 3.0 2.0 1.0

Sample Output 2



1 0.00

Filename to submit



point_on_plane.cpp

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