[D] Expression
- 时间限制: 500 ms 内存限制: 65535 K
- 问题描述
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This problem's meaning is easy. Give you a infix expression, and you should convert it into postfix expression.
- 输入
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Input one infix expression a line. Expression will include brackets( '(', ')' ), integers(0 ~ 10), alphabets('a' ~'z', 'A' ~ 'Z') and simple operators('+', '-', '*' and '/').
- 输出
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Output every line‘s postfix expression in a line. And separate integers, alphabets and operators by ’ ‘.
- 样例输入
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(2 + 1) * 3 a+b*c-(d+e)
- 样例输出
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2 1 + 3 * a b c * + d e + -
- 提示
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无
- 来源
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Minary
- 操作
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