What if I have a program in place?

You need to use a compiled or interpreter program to execute your program, check the results of the run, and determine whether it is right or wrong. Different programming languages require corresponding programs to execute. The compiled program is usually an exe file and can be run independently of the source program.

First of all, you must have a runtime environment in your language. and run in this environment.

If you want to learn to code, you need to pay attention to the following aspects: Programming language is the formal language used to define computer programs. It is a standardized communication technique used to give instructions to a computer.

It is necessary to choose the direction of programming, read more official documents, and make flexible use of network learning to make corresponding network projects.

Programming direction: front-end development, back-end development, mobile development, cloud computing, data processing, intelligent hardware, Internet of Things, virtual reality, etc., you need to learn a first language and other programming languages.

Learn English first and then study C language.

You have to pass the English test before you can learn it.

This is a big taboo for programmers, to learn to write program documentation. A few suggestions for you:

1.Write down the design requirements of the program, and set the number of modules and functions according to the requirements;

2.Write a unified module name for each module and explain its role in detail;

3.Specify the name, call condition, and returned value or pointer of the internal and external use variables;

4.The more detailed the specific programs and modules, the better, preferably to the point where the annotations in the text can be executed by replacing them with programming statements;

5.Write documents into programs and debug them;

6.Every time a problem is found to be modified, a note must be given to explain the cause and solution;

7.Centralize the testing software.

Hope it helps.

Of course, you have to construct it first, if you have good skills and are very professional, it would be good to have a structure in your brain.

Otherwise, it's better to write it out, draw it, a project will not be completed in a day or two, if you can't save it so quickly in your brain, it's best to write it down, you can say, what function you are doing now, why did you delete it again, let's analyze and communicate together.

Most newbies are like that, and so am I.

It's good to use more straw paper, and pay attention to the use of the process.

Let's draw a flowchart and determine what you want to do. How to do it.

An algorithm is used to try to calculate the addition and subtraction of all combinations, and then selectively save them.

You can also try to add some constraints to the algorithm.

This algorithm is mainly difficult to start with in the first step, so you can start with the following methods.

Step 1, write a function first: realize the addition and subtraction of adjacent numbers. After judging the correct result, save the calculation process.

This is feasible, first seek the sum.

The number of subtractions specified in the function operation is k;

The matrix to be processed is a;

The process of saving the correct operation is matrix c;

Step 2, write another function to implement different combinations of various numbers;

Step 3, write the main program, take a set of numbers in step 2, and then make the k value from 0 to the maximum value through a loop, and call the functions written in step 1 respectively to complete the operation.

In this way, there are three possibilities for each void: none, plus or minus. Then a circular judgment can be made (complexity o(n 3)).