题解 | #求1+2+3+...+n#
求1+2+3+...+n
http://www.nowcoder.com/practice/7a0da8fc483247ff8800059e12d7caf1
为啥下面的不行？
# -*- coding:utf-8 -*-
class Solution:
def Sum_Solution(self, n):
# write code here
result = (n+1)*n/2
return result这个就行？
# -*- coding:utf-8 -*-
class Solution:
def Sum_Solution(self, n):
# write code here
result = int((n+1)*n/2)
return result
投递巨人网络等公司7个岗位 >
，大厂实习随便冲，面经多少看点，hot100刷完，大厂随便挑了
