Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Create a C Program: Robot walks in a Cartesian plane.

The program has four commands:
a] Origin - enables Robot to return to the point of origin which is 0,0
b] Location - prints the current location of Robot
c] Move - Robot moves to the following directions: 6-East, 4-West, 8-North, 2-South. Distance should be given (an integer).
d] Exit - prints "Program terminated. Thank you!"

The program includes the following functions:
char printCommand(void)- displays the menu of commands and accepts and returns the choice.
void initialize(int *x,int *y); - initializes the two points back to the point of origin, 0,0.
void printLocation(int x,int y) - prints the current location of Robot.
void move(int *x, int *y); - reads and displays the direction and the distance, computes the current location of Robot.
void exit(void); - prints a message of termination.
main()- uses the switch structure for the choices. Note that in a Cartesian plane, it is composed of points with x and y coordinates.

Filenames: robot.h, robot.c, main.c

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