Simple Program Code Help

w0t3rf15h

file:///C:/DOCUME%7E1/Cleong/LOCALS%7E1/Temp/moz-screenshot.jpgfile:///C:/DOCUME%7E1/Cleong/LOCALS%7E1/Temp/moz-screenshot-1.jpg要如何写 program in C++ 如果 2+1*3-1 他会自动换成  (2+1)*(3-1)

PS: the sequence is follow from  + - * /   where + is highest and / is lowest

Thanks

tensaix2j

你是否有学过一种data structure 叫 tree 的吗？