How to resolve a C language program that has stopped working?

When a C language program stops working, the issue can be resolved using the following methods:

1. Check the program code: Start by examining the program code to identify any syntax, logic, or other errors. Debugging tools or print statements can be helpful in pinpointing the precise location of the issue.
2. Check input: Ensure that the data type and format of the input are consistent with what is required in the code. Verify that the input data is valid and check for any potential boundary cases.
3. Check memory management: In C language, it is necessary to manually manage memory. If a program uses dynamic memory allocation, ensure that allocated memory is correctly released to avoid memory leaks. Also, check for issues like dangling pointers and pointer out-of-bounds.
4. Check loops and conditional statements: Ensure that the loops and conditional statements in the program are correct, meet the expected conditions, and are able to terminate properly.
5. Utilize debugging tools: By using debugging tools to explore the program’s execution process, you can set breakpoints, observe variable values, track function calls, and ultimately help pinpoint issues.
6. Debugging in modules: For larger programs, you can separate the code into multiple modules and debug each one individually to identify which module is causing the issue.
7. Find error information: If the program outputs an error message when it stops working, you can search for solutions based on the error message, such as consulting relevant documents or searching the internet.
8. Seek advice from others: if the above methods cannot solve the problem, you can submit the code and problem description to relevant forums or communities, and ask for advice from others. They may offer new ideas and solutions.