If it is a simple addition or subtraction operation expression, it is very simple to process the expression's first character in sequence.
However, for the four arithmetic operations, there are parentheses and multiplication and division first, and
RPN (reverse Polish Notation), a reverse polish expression.
RPN calculator is a calculator that uses the reverse Polish notation method of user interaction, which is typically popular with people who deal with financial, engineering or other
Known notation
Time Limit: 2 seconds memory limit: 65536 KB
do you know reverse Polish notation (RPN )? It is a known notation in the area of mathematics and computer science. it is also known as Postfix notation
Question link:
Http://acm.zju.edu.cn/onlinejudge/showProblem.do? Problemid = 5383
Known notation
Time Limit: 2 seconds memory limit: 65536 KB
do you know reverse Polish notation (RPN )? It is a known
Mess:1. The number of numbers is more than the number of *, assuming that the numbers need to fill the numbers first2. The optimal structure should be the numbers on the left, * all on the right3. Sweep from left to right, encounter number +1,
Question link: http://acm.zju.edu.cn/onlinejudge/showProblem.do? Problemid = 5383
Do you know reverse Polish notation (RPN )? It is a known notation in the area of mathematics and computer science. it is also known as Postfix notation since
Description
Do you know reverse Polish notation (RPN )? It is a known notation in the area of mathematics and computer science. it is also known as Postfix notation since every operator in an expression follows all of its operands. bob is a student
Known notation
Time Limit: 2 seconds memory limit: 65536 KB
Do you know reverse Polish notation (RPN )? It is a known notation in the area of mathematics and computer science. it is also known as Postfix notation since every operator in an
Messing around:
1. The number of numbers must be one more than the number of *. If the number is insufficient, you need to fill up the number first.
2. The optimal structure should be that all numbers are on the left, and * all are on the right.
3.
Known notation
Time Limit: 2 seconds memory limit: 65536 KB
Do you know reverse Polish notation (RPN )? It is a known notation in the area of mathematics and computer science. it is also known as Postfix notation since every operator in an
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