def paint(start_from_white = False):
x = n // 2
y = n // 2
grid = [["."] * n for _ in range(n)]
c = Comp(a)
d = "U"
colored = set()
if start_from_white:
grid[y][x] = "#"
while not c.is_halted():
inp = 0 if grid[y][x] == "." else 1
c.add_one_input(inp)
c.run()
# Paint
color = "." if c.get_one_output() == 0 else "#"
grid[y][x] = color
colored.add((y, x))
# Turn
if d == "U":
d = "L" if c.get_one_output() == 0 else "R"
elif d == "R":
d = "U" if c.get_one_output() == 0 else "D"
elif d == "D":
d = "R" if c.get_one_output() == 0 else "L"
elif d == "L":
d = "D" if c.get_one_output() == 0 else "U"
else:
print("something not right)")
break
# Move
if d == "U":
y += 1
elif d == "R":
x += 1
elif d == "D":
y -= 1
elif d == "L":
x -= 1
else:
print("something not right)")
break
if start_from_white:
A = np.asanyarray(grid)
B= np.flipud(A)
for row in B:
print("".join(row))
else:
print(len(colored))
def solve2():
threshold = 100
upleft_corners = {}
y = 1200 # guessing that first suitable is after row 1200
x_start = 0
while True:
hits = 0
last_hit = 0
x = x_start
while True:
c = Comp(a)
c.add_one_input(x)
c.add_one_input(y)
c.run()
o = c.get_one_output()
if o == 1:
if hits == 0:
x_start = x
possible_corner = y - threshold + 1
if (possible_corner in upleft_corners
and upleft_corners[possible_corner] == x):
return 10000 * x + possible_corner
hits += 1
last_hit = x
if o == 0 and hits != 0:
break
x += 1
if hits >= threshold:
upleft_corners[y] = last_hit - threshold + 1
y += 1
def solve1():
n = 50
ans = 0
for y in range(n):
for x in range(n):
c = Comp(a)
c.add_one_input(x)
c.add_one_input(y)
c.run()
o = c.get_one_output()
if o == 1:
ans += 1
return ans
def first():
global grid
global w
global h
c = Comp(a)
c.run()
sa = []
while c.outputs:
sa.append(chr(c.get_one_output()))
s = "".join(sa)
grid = s.splitlines()
grid = grid[:-1]
w = len(grid[0])
h = len(grid)
def is_intersection(y, x):
if y < 1 or x < 1 or y > h - 2 or x > w - 2:
return False
if (grid[y][x] == "#" and grid[y - 1][x] == "#"
and grid[y + 1][x] == "#" and grid[y][x - 1] == "#"
and grid[y][x + 1] == "#"):
return True
return False
ans = 0
start = (0, 0)
for y in range(h):
for x in range(w):
if grid[y][x] == "^":
start = (y, x)
if is_intersection(y, x):
ans += y * x
print(ans)
return start