#1419. C++-循环for-计算S=1/1-1/2+1/3-1/4+1/5-1/6...
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ID: 1419
Type: Default
1000ms
256MiB
Tried: 318
Accepted: 107
Difficulty: 6
Uploaded By:
吴泽宏 (wuzehong)
Tags> C++-循环for-计算S=1/1-1/2+1/3-1/4+1/5-1/6...
Background
Description
C++-循环for-计算S=1/1-1/2+1/3-1/4+1/5-1/6...+(-)1/n
n是需要输入
Format
Input
Output
Samples
2
0.5
10
0.645635
100
0.688172
Limitation
1s, 1024KiB for each test case.