#18503. 求值
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ID: 18503
Type: Default
1000ms
128MiB
Tried: 0
Accepted: 0
Difficulty: (None)
Uploaded By:
求值
说明
求s=1+2+3+4+5+6...+n的值
输入格式
n
输出格式
s=数值
10s=55