MowerJo Solutions

1. Zig-zag with multiple clicks...

face("s")
move()
turnLeft()
move()
turnRight()

2. Zig-zag with one click...

face("s")
while(pathIsClear()){
   move()
   turnLeft()
   move()
   turnRight()
}

3. Cut entire yard with multiple clicks...

if(pathIsClear() && nextNeedsToBeCut()){
move()
}
else{
turnLeft()
}

4 Cut entire yard with one click.

while(moreToCut()){
  if(pathIsClear() && nextNeedsToBeCut()){
      move()
  }
else{
      turnLeft()
  }
}

5. Clear entire yard when starting in the center of the yard at 5,5 (this approach is complicated...you can probably write much simpler code)...

i = 1
while (i < 9){
   j = 0
   while (j < i) {
     move()
     j= j+1
     }
   j=0;
   turnLeft()
   while (j < i) {
     move()
     j= j+1
     }
   turnLeft()
   i= i+1
}
while (pathIsClear()) {
   move()
}