中缀转后缀的简便方法

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英文:

Infix to Postfix short trick

问题

有人知道中缀转后缀表达式转换的快捷方式或技巧吗?

我知道使用栈的方法,但是有没有更快的技巧呢?

例如,将 a+b*(c^d-e)^(f+gh)-i 转换为 abcd^e-fgh+^*+i-

英文:

Does anybody know a shortcut or short trick for infix to postfix conversion for multiple-choice questions exam?

I know the method using stack but is there any fast technique for it?

for example a+b*(c^d-e)^(f+gh)-i to abcd^e-fgh+^*+i-

答案1

得分: 0

将表达式作为树写出(叶子为值,内部节点为运算符),保留值的从左到右顺序,然后写下它的后序遍历。

英文:

Write the expression as a tree (leaves are values, internal nodes are operators), preserving the left-to-right order of values, and then write down its post-order traversal.

答案2

得分: 0

Sure, here's the translation:

如何使用"Shunting Yard"算法:https://en.m.wikipedia.org/wiki/Shunting-yard_algorithm

英文:

How ‘bout the Shunting Yard algorithm: https://en.m.wikipedia.org/wiki/Shunting-yard_algorithm

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  • 本文由 发表于 2020年9月28日 23:32:24
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