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表达式括号补全与求值

编写程序,从标准输入得到一个缺少左括号的表达式并打印出补全括号之后的中序表达式。例如给定表达式: 1 + 2 )* 3 - 4 )* 5 - 6 ) ) )程序可以输出:((1 + 2 )*((3 - 4)*(5 - 6)))并计算结果,Java代码如下: import java.math.BigDecimal; import java.util.ArrayList; import...

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[Leetcode]Evaluate Reverse Polish Notation

题目描述Evaluate the value of an arithmetic expression in Reverse Polish Notation.Valid operators are +, -, *, /. Each operand may be an integer or another expression.Some examples:  ["2", "1", "+", "3",...

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