Please write a simply code in python, the requirement is as followed: 1. use the list type describe rod A, B and C 2. to The Tower of Hanoi is a mathematical game or puzzle. It consists of three rods, and a number of disks of different sizes which can slide onto any rod. The puzzle starts with the disks in a neat stack in ascending order of size on one rod, the smallest at the top, thus making a conical shape. The following figure shows the initial state of the Tower of Hanoi with 5 disks.The objective of the puzzle is to move the entire stack to another rod, obeying the following simple rules: 1. Only one disk can be moved at a time. 2. Each move consists of taking the upper disk from one of the stacks and placing it on top of another stack i.e. a disk can only be moved if it is the uppermost disk on a stack. 3. No disk may be placed on top of a smaller disk. Assume that initially all the disks are placed on rod A. Write a non-recursive Python function to print out the steps to move all the disks from rod A to rod C via rod B (Hint: a recursive algorithm can be converted into a non-recursive algorithm using stack). The header of the function is: def HanoiTower(n) Here n represents the number of disks.

时间: 2023-02-05 08:50:34 浏览: 159
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简明的python教程

首先,我们可以使用 Python 的列表类型来描述棒 A,B 和 C: ``` rod_A = [] rod_B = [] rod_C = [] ``` 然后,我们可以定义一个非递归的 Python 函数来打印汉诺塔的移动步骤: ``` def HanoiTower(n): stack = [] stack.append((n, 'A', 'B', 'C')) while stack: n, from_rod, aux_rod, to_rod = stack.pop() if n == 1: print(f'Move disk from rod {from_rod} to rod {to_rod}') else: stack.append((n-1, aux_rod, from_rod, to_rod)) stack.append((1, from_rod, aux_rod, to_rod)) stack.append((n-1, to_rod, aux_rod, from_rod)) # 调用函数 HanoiTower(5) ``` 这样,我们就可以使用非递归的方式来解决汉诺塔问题了。
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Write a computer program that could be used to track users' activities. Lab Number Computer Station Numbers 1 1-3 2 1-4 3 1-5 4 1-6  You run four computer labs. Each lab contains computer stations that are numbered as the above table.  There are two types of users: student and staff. Each user has a unique ID number. The student ID starts with three characters (for example, SWE or DMT), and is followed by three digits (like, 001). The staff ID only contains digits (for example: 2023007).  Whenever a user logs in, the user’s ID, lab number, the computer station number and login date are transmitted to your system. For example, if user SWE001 logs into station 2 in lab 3 in 01 Dec, 2022, then your system receives (+ SWE001 2 3 1/12/2022) as input data. Similarly, when a user SWE001 logs off in 01 Jan, 2023, then your system receives receives (- SWE001 1/1/ 2023). Please use = for end of input.  When a user logs in or logs off successfully, then display the status of stations in labs. When a user logs off a station successfully, display student id of the user, and the number of days he/she logged into the station.  When a user logs off, we calculate the price for PC use. For student, we charge 0 RMB if the number of days is not greater than 14, and 1 RMB per day for the part over 14 days. For staff, we charge 2 RMB per day if the number of days is not greater than 30, and 4 RMB per day for the part over 30 days.  If a user who is already logged into a computer attempts to log into a second computer, display "invalid login". If a user attempts to log into a computer which is already occupied, display "invalid login". If a user who is not included in the database attempts to log off, display "invalid logoff".

请用python语言实现以下问题: 要求不用evaluate函数,改用栈实现这个问题 The objective of the program you are going to produce is to evaluate boolean expressions as the one shown next: Expression: ( V | V ) & F & ( F | V )where V is for True, and F is for False. The expressions may include the following operators: ! for not, & for and, | for or, the use of parenthesis for operations grouping is also allowed. To perform the evaluation of an expression, it will be considered the priority of the operators, the not having the highest, and the or the lowest. The program must yield V or F, as the result for each expression in the input file. Input The expressions are of a variable length, although will never exceed 100 symbols. Symbols may be separated by any number of spaces or no spaces at all, therefore, the total length of an expression, as a number of characters, is unknown. The number of expressions in the input file is variable and will never be greater than 20. Each expression is presented in a new line, as shown below. Output For each test expression, print "Expression " followed by its sequence number, ": ", and the resulting value of the corresponding test expression. Separate the output for consecutive test expressions with a new line. Use the same format as that shown in the sample output shown below. Sample Input ( V | V ) & F & ( F| V) !V | V & V & !F & (F | V ) & (!F | F | !V & V) (F&F|V|!V&!F&!(F|F&V)) Sample Output Expression 1: F Expression 2: V Expression 3: V

Write a computer program that could be used to track, by lab, which user is logged into which computer: Lab Number Computer Station Numbers 1 1-5 2 1-6 3 1-4 4 1-3 ➢ You run four computer labs. Each lab contains computer stations that are numbered as the above table. ➢ Each user has a unique ID number. The ID starting with three characters (for example, SWE or DMT), and followed by three digits (like, 001). ➢ Whenever a user logs in, the user’s ID, lab number, and the computer station number are transmitted to your system. For example, if user SWE001 logs into station 2 in lab 3, then your system receives (SWE001, 2, 3) as input data. Similarly, when a user SWE001 logs off a station, then your system receives the user id SWE001. ➢ If a user who is already logged into a computer attempts to log into a second computer, display "invalid login". If a user attempts to log into a computer which is already occupied, display "invalid login". If a user who is not included in the database attempts to log out, display "invalid logoff". 输入格式 If user SWE001 is logged into station 2 in lab 3 and user DMT001 is logged into station 1 of lab 4, use + for logging in, - for logging off, and = for end of input: + SWE001 2 3 + DMT001 1 4 《面向对象程序设计 C++》 2022-2023 春季学期 2 / 4 - SWE001 = 输出格式 The status of all labs (who is logged into which computer). Otherwise, display invalid login or invalid logoff. You need to display the status of all labs even when the input is invalid.

Given the grid below for the game of ACSL Patolli, utilize the following rules to play the game. All rules must be applied in the sequential order listed. 1 . There are 2 players. Each player has 3 markers. 2. The markers move according to the roll of a die (1 – 6). 3. Markers move in numerical order around the grid. 4. If, on a die roll, a marker lands on an occupied location, then that marker loses its turn and remains at its previous location. 5. A marker can jump over another marker on its way to finish its move. 6. A marker finishes its way around the grid when it lands on location 52. It is then removed from the board. A move can’t take a marker beyond location 52. If it does, the marker remains at its previous location. 7. If, on a die roll, a marker lands on an unoccupied location that is a prime number, the marker then moves six locations forward. However, it stops immediately before any occupied location. 8. If, on a die roll, a marker lands on an unoccupied location that is a perfect square greater than 4, the marker then moves 6 locations backwards. However, it stops immediately before any occupied location. 9. If, on a die roll, a marker lands on an unoccupied location that is neither a prime number nor a perfect square, then determine if the marker made at least one horizontal move followed by at least one vertical move (such as going from 6 to 8, 11 to 13, 26 to 28 … but not 2 to 4 or 30 to 32). In that case, the marker can only land on a location on its path that is a multiple of the die roll value even if it moves a smaller distance than the die roll value. However, if all the locations in its path that are multiples are occupied, then the marker does not move from its current location. The rules listed in #7 and #8 do not apply when using #9.

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