部分十进制小数无法精确表示为二进制浮点数,如十进制的0.1,0.2等会无限循环,二进制浮点数转化为十进制时会有误差。 int(9.999999999999998) = 9 int(10.000000000000002) = 10 可在a+b后加一个很小的数(如1e-9)偏移一下

0 comments

No comments so far...

Information

ID
393
Time
1000ms
Memory
256MiB
Difficulty
9
Tags
(None)
# Submissions
85
Accepted
8
Uploaded By