| 12345678910111213141516171819202122232425262728293031323334353637383940 |
- import numpy as np
- # From: http://stackoverflow.com/a/35178910
- def angle(x, y):
- a = np.array([50, 100, 0])
- b = np.array([50, 50, 0])
- c = np.array([x, y, 0])
- ba = a - b
- bc = c - b
- cosine_angle = np.dot(ba, bc) / (np.linalg.norm(ba) * np.linalg.norm(bc))
- angle = np.arccos(cosine_angle)
- return np.degrees(angle)
- def solve(S):
- p, x, y = S
- #print("p={0}, x={1}, y={2}".format(p, x, y))
- dist=np.sqrt((x-50)*(x-50)+(y-50)*(y-50))
- if dist > 50:
- return 'white'
- a=angle(x,y)
- if x < 50:
- a=360-a
- #print('Angle={0}'.format(a))
- if p >= 100*a/360:
- return 'black'
- return 'white'
- if __name__ == "__main__":
- import fileinput
- f = fileinput.input()
- T = int(f.readline())
- for case in range(1, T+1):
- S = [int(i) for i in f.readline().split()]
- solution = solve(S)
- print("Case #{0}: {1}".format(case, solution))
|
