[Java] Leetcode 1041. Robot Bounded In Circle [Array #10]

[@hyonsokna7244]

thank you so much! very clear and easy solution!

[@jeroenvandenheuvel3869]

Thanks for the explanation! Although this solution works well it's a bit more complex than necessary. What about using cosine and sine?
```
x = 0
y = 0
rotation = 0
for instruction in instructions:
if instruction == "L":
rotation += 270
rotation = rotation % 360
elif instruction == "R":
rotation += 90
rotation = rotation % 360
else:
y -= int(math.cos(math.radians(rotation)))
x += int(math.sin(math.radians(rotation)))
if x == 0 and y == 0:
return True
elif rotation != 0:
return True
return False
```
Or without these functions the movement can be done like this:
```
if rotation % 180 == 0:
y += (rotation / 90) - 1
else:
x -= (rotation / 90) - 2
```