You need to design and implement a project with following functionalities: a) a function called ‘cal-area (double radius)’ to calculate area of a circle. b) a function called ‘cal-area (double side-len)’ to calculate area of a square. c) a main function to input two values for these two functions, and output which function is called and the area result. Requirement: setup a project in the coding software and create three files (a .h file, two .cpp files). Need to illustrate the design of your project and display the code.
时间: 2023-03-07 13:58:30 浏览: 43
我可以为您设计和实现这个项目。首先,我会在编码软件中创建一个新项目,并创建一个包含头文件和两个cpp文件的文件夹。然后,我将在头文件中定义一个叫做cal-area(double radius)的函数,它可以用来计算圆的面积,还有一个叫做cal-area(double side-len)的函数,用来计算正方形的面积。最后,我将在主函数中输入两个值,然后调用这两个函数,并输出调用的函数以及面积的结果。
相关问题
Provide a minimal set of RISC-V instructions that may be used to implement the following pseudoinstruction: not x5, x6 // bit-wise invert
The RISC-V ISA does not have a NOT instruction for bit-wise inversion of a register. However, we can still implement this operation using a combination of other RISC-V instructions. One possible set of instructions that can be used to implement the bit-wise inversion operation for registers x5 and x6 are:
```assembly
xori x5, x6, -1
```
Explanation:
The `xori` instruction performs a bit-wise Exclusive-OR operation between the source register `x6` and the immediate value `-1`, which is represented in binary as all 1's. This has the effect of inverting all the bits in `x6` and storing the result in `x5`. Therefore, the above instruction is equivalent to the pseudoinstruction `not x5, x6` in terms of bit-wise inversion.
Note that the above instruction assumes that the initial value of register `x6` is zero-extended to 32 bits. If `x6` contains a value that is sign-extended to 32 bits, we need to use a different immediate value for the `xori` instruction. For example, if `x6` contains the value -1 (represented in binary as all 1's), we can use the immediate value 0 instead of -1, like this:
```assembly
xori x5, x6, 0
```
This will perform the same bit-wise inversion operation as before, but with the correct immediate value for sign-extended register values.
Enter a number to calculate the number of days from now, and use python code to implement
我可以使用Python代码来实现从现在起计算天数的功能,例如:from datetime import datetime, timedelta n = int(input("Enter a number: ")) days_from_now = datetime.now() + timedelta(days=n) print(f"{n}天后的日期是:{days_from_now.strftime('%d/%m/%Y')}")