P1533 Number Reverse
we just find the position of the character '.' and '/' and '%' and reverse the string before and after the character and omit the front zeros.
we just find the position of the character '.' and '/' and '%' and reverse the string before and after the character and omit the front zeros.
Every time I use find function in C++ , I always search its usage after using it for so many times. So I decide to make a summary of some commonly used usages.