<p>我写了一些代码,在给定n个数的情况下,找出要计数到1的最小事件数</p>
<pre><code>class Solution(object):
def __init__(self):
events=0
def integerReplacement(self, n):
"""
:type n: int
:rtype: int
"""
if n==1 or not n:
return self.events
if n%2==0:
self.events=self.events+1
self.integerReplacement(self,n/2)
else:
self.events=self.events+1
self.integerReplacement(self,(n-1)/2)
return self.events
def stringToInt(input):
return int(input)
def intToString(input):
if input is None:
input = 0
return str(input)
def main():
import sys
def readlines():
for line in sys.stdin:
yield line.strip('\n')
lines = readlines()
while True:
try:
line = lines.next()
n = stringToInt(line)
ret = Solution().integerReplacement(n)
out = intToString(ret)
print out
except StopIteration:
break
if __name__ == '__main__':
main()
</code></pre>
<p>我得到的错误是</p>
<pre><code>Finished in N/A
AttributeError: 'Solution' object has no attribute 'events'
Line 12 in integerReplacement (Solution.py)
Line 38 in main (Solution.py)
Line 46 in <module> (Solution.py)
</code></pre>
<p>我不知道为什么它不能识别我在init函数中声明的events变量。我做错什么了</p>