Pawn Brotherhood

Pawn Brotherhood

 1 alpha_table = "abcdefgh"
 2
 3 def safe_pawns(pawns):
 4     safe_count = 0
 5
 6     for spawn in pawns:
 7         if spawn[1] == '1':
 8             continue
 9
10         pos = alpha_table.find(spawn[0])
11         str_row = str(int(spawn[1]) - 1)
12
13         if pos == 0:
14             if (alpha_table[1] + str_row) in pawns:
15                 safe_count += 1
16             continue
17
18         if pos == 7:
19             if (alpha_table[6] + str_row) in pawns:
20                 safe_count += 1
21             continue
22
23         if (alpha_table[pos - 1] + str_row) in pawns or (alpha_table[pos + 1] + str_row) in pawns:
24             safe_count += 1
25
26     return safe_count

自定义了一个小写字母表, 找出某字母的前后字母, 如b的(a, c)

另外可以使用chr(ord(pawn[0]) + 1), chr(ord(pawn[0]) - 1)获得前后字母, ord相当于获得字母的数码(如ascii码), chr是逆过程