Algorithm: integer division on rounding

Writing the code encounters an integer division that needs to be rounded up.

1. Integer division, you can write your own ^_^

1#!/bin/Bash2 3num=101# #被除数4Pre=Ten# #除数5 6 # #线上取整7res=$[(num+pre-1)/Pre]8 Echo$res9 Ten # # integer division By default is rounded down  Oneres=$[num/Pre] A Echo$res

2. Or you can provide a method based on the language used

For example, the C + + MATH.H header file provides built-in methods:

1 round   2  Floor 3 Ceil

Algorithm: integer division on rounding