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  1. def plus(arr, n):
  2.  
  3.     return list(map(lambda x: x + 1, arr))
  4.  
  5. def func():
  6.     # we have 7 countries to color
  7.     n = 7
  8.     matrix = [[0,1,1,1,0,0,1],
  9.               [1,0,1,1,0,0,0],
  10.               [1,1,0,1,1,0,1],
  11.               [1,1,1,0,1,0,1],
  12.               [0,0,1,1,0,1,1],
  13.               [0,0,0,0,1,0,1],
  14.               [1,0,1,1,1,1,0]]
  15.  
  16.     mapColors = []
  17.  
  18.     mapColors = [0] * (n)
  19.  
  20.     color = -1
  21.  
  22.     ok = True
  23.  
  24.     mapColors[0] = 0
  25.  
  26.     for i in range(1, n):
  27.  
  28.         ok = False
  29.  
  30.         color = -1
  31.  
  32.         while ok is not True:
  33.  
  34.               color += 1
  35.  
  36.               ok = True
  37.  
  38.               for j in range(0, i):
  39.  
  40.                   if 1 == matrix[j][i] and mapColors[j] == color:
  41.  
  42.                       ok = False
  43.         mapColors[i] = color
  44.  
  45.     mapColors = plus(mapColors, 1)
  46.  
  47.     print(mapColors)
  48.  
  49. func()
  50.  
Success #stdin #stdout 0.03s 9588KB
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[1, 2, 3, 4, 1, 2, 5]
https://ideone.com/MNavY9
Map Coloring with Greedy Paradigm
language:
Python 3 (python  3.9.5)
created:
1 year ago
visibility:
secret

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