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CCF-CSP_20191202:回收站选址

2020-01-21 11:58:56
阅读：7834   •   评论：134
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编程语言：Python

解题思想：

1.通过in来判断该点是否为垃圾点

2.如为垃圾点，则判断周围四个点来计算得分

时间复杂度：O(n)

IDE代码如下：

  1. # 2.如为垃圾点，则判断得分
  2. NOG = int(input())  # 垃圾点个数
  3. Garbage = [[0, 0] for i in range(NOG)]  # 垃圾点的坐标列表
  4. Point = [0 for i in range(5)]  # 每个得分下的垃圾站个数
  5.  
  6. for i in range(NOG):  # 输入每个垃圾点的坐标
  7.     Garbage[i] = [int(n) for n in input().split()]
  8.  
  9. for i in range(NOG):  # 遍历每个垃圾点
  10.     Score = 0
  11.     if [Garbage[i][0],Garbage[i][1]+1] in Garbage and [Garbage[i][0],Garbage[i][1]-1] in Garbage and [Garbage[i][0]+1,Garbage[i][1]] in Garbage and [Garbage[i][0]-1,Garbage[i][1]] in Garbage:
  12.         if [Garbage[i][0]-1,Garbage[i][1]+1] in Garbage:
  13.             Score += 1
  14.         if [Garbage[i][0]+1,Garbage[i][1]+1] in Garbage:
  15.             Score += 1
  16.         if [Garbage[i][0]-1,Garbage[i][1]-1] in Garbage:
  17.             Score += 1
  18.         if [Garbage[i][0]+1,Garbage[i][1]-1] in Garbage:
  19.             Score += 1
  20.         Point[Score] += 1
  21. for i in range(5):
  22.     print(Point[i])
  23.  

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