To debug your programs using Dev-C++, you can follow these steps:

1. Enable Debugging Mode: Before you can start debugging, make sure you have enabled the debugging mode in Dev-C++. To do this, go to the "Tools" menu and select "Compiler Options". In the "General" tab, check the box that says "Produce debugging information (-g)" and click "OK" to save the changes.

2. Add Breakpoints: Set breakpoints in your code at the locations where you want the debugger to pause the execution. To set a breakpoint, click on the left margin of the code editor next to the line you want to stop at. A red dot will appear, indicating the breakpoint has been set.

3. Start Debugging: Go to the "Execute" menu and select "Start Debugging" or use the F8 shortcut key. Dev-C++ will compile your code with debugging information and launch the debugger.

4. Debugging Controls: Once the debugger is running, you can use the following controls to navigate through the code and examine variables:

   - Step Over (F7): Execute the current line of code. If it's a function call, it will step over the function and move to the next line.

   - Step Into (F8): Execute the current line of code. If it's a function call, it will step into the function, allowing you to debug inside the function.

   - Step Out (Shift+F8): Execute the remaining lines of the current function and return to the calling function.

   - Run to Cursor (Ctrl+F4): Run the program until it reaches the line where the cursor is located.

   - Continue (Ctrl+F5): Resume normal execution until the next breakpoint is encountered or the program finishes.

   - Stop (Shift+F5): Stop the debugger and terminate the program.

5. Inspect Variables: While debugging, you can inspect the values of variables and expressions in the "Watches" window. To open the "Watches" window, go to the "View" menu, select "Watches", and a separate window will appear. In the "Watches" window, you can add variables or expressions to watch their values during debugging.

6. Analyze Call Stack: The "Call Stack" window shows the sequence of function calls that led to the current point in code execution. It allows you to navigate through the call stack and inspect the values of variables at different levels of function calls.

Dev-C++ provides basic debugging features, such as breakpoints, stepping through code, and inspecting variables. However, please note that Dev-C++ is an older IDE, and its debugging capabilities may be limited compared to more modern IDEs.

Remember to refer to the Dev-C++ documentation and online resources for additional guidance and support specific to the debugger.

If you require more advanced debugging features, consider exploring other popular C/C++ IDEs such as Visual Studio, Code::Blocks, or JetBrains CLion, which offer more comprehensive debugging tools and features.