CodePudding user response:

Don't directly use the int type, to maintain accuracy must let 10 x is the square root of the rounding down turn strong (integer)

CodePudding user response:

I hope it can help you: https://blog.csdn.net/it_xiangqiang/category_10581430.html
I hope it can help you: https://blog.csdn.net/it_xiangqiang/category_10768339.html