This C program is Robot Abstraction made by Kannan Sekar Annu Radha
Use gcc to compile main.c (gcc -o main main.c graphics.c) then use (./main | java -jar drawapp.jar)
gcc -o main main.c graphics.c ./main | java -jar drawapp.jar 
Markers are grey Blockers are red
zigzag(); is a search algorithm that hugs the walls
rightloop(); is an algorithm that keeps turning right
solution(); is code that goes to the marker
To change position of robot go to main and change roboX and roboY and *direction to one of 'R' = right, 'L' = left, 'D' = down, 'U' = up