ACM ICPC Team

Link:

　　https://www.hackerrank.com/challenges/acm-icpc-team/submissions/code/11617807

 1 def count_max_topics(konw_topics):
 2     max_topics = 0
 3     max_teams = 0
 4     for i, person1 in enumerate(konw_topics): # enumer的用法学习
 5         for j, person2 in enumerate(konw_topics[i+1:]):
 6             bin1 = int(person1, 2) # 二进制的转换
 7             bin2 = int(person2, 2)
 8             topics = bin(bin1 | bin2).count(‘1‘)
 9
10             if topics > max_topics: # 找最大值的一个通用思路
11                 max_topics = topics
12                 max_teams = 1
13             elif topics == max_topics:
14                 max_teams += 1
15
16     print max_topics
17     print max_teams
18
19 def main():
20     n, m = map(int, raw_input().strip().split(‘ ‘)) #双位输入的模板
21     konw_topics = [] # 用list合适
22     for _ in range(n):
23         konw_topics.append(raw_input().strip())
24
25     count_max_topics(konw_topics) # func设置分散，这样更易读和理解
26
27
28 main()

问题本质

　　二进制运算

　　Subarray计算

　　循环记录最大值

学习

　　enumerate

　　二进制的转换 int(,2)

　　熟悉dash的使用

　　找最大值的思维通路

　　命名变量、函数更加规范