题解 | #求1+2+3+...+n#
求1+2+3+...+n
https://www.nowcoder.com/practice/7a0da8fc483247ff8800059e12d7caf1
# -*- coding:utf-8 -*-
class Solution:
def Sum_Solution(self, n):
# write code here
ans=0
for i in range(1,n+1):
ans+=i
return ans
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