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Sameko Dev C++ Wiki

Documentation from basics to advanced features.

Sameko Dev C++ is a C++ IDE designed for competitive programming and education. It comes with a pre-configured GCC 16.1.0 compiler on Windows, allowing you to start coding immediately without installing additional compilers or MinGW.

Who is Sameko for?

• Beginners who need a simple environment without the complexity of Visual Studio
• Competitive Programmers who need fast compilation and test case integration
• Students who need a portable IDE to use on school computers via USB

Installing Sameko IDE

Creating your first project

After opening the IDE, try writing and running a Hello World program to verify installation.

#include <bits/stdc++.h>
using namespace std;
int main() {
    cout << "Hello, Sameko!" << '\n';
    return 0;
}

Steps:

1. Paste the code above into the editor
2. Press Ctrl + S to save as hello.cpp
3. Press F11 to compile and run
4. The output will appear in the terminal below

System Requirements

Compiler Settings

Sameko uses GCC 16 with pre-configured compile options.

C++ Standard

Sameko fully supports C++ standards from legacy to modern.

Common Compiler Flags

• -O2 - Optimize for speed, use when submitting to Codeforces
• -Wall - Show warnings, helps find bugs
• -g - Add debug information

Keyboard Shortcuts

Shortcuts help you code faster.

Themes & Customization

Sameko includes 6 built-in themes. Change themes in Settings or click the palette icon.

Theme Customizer

Open the Theme Customizer to click on any UI element and change its color. You can also set custom background images or videos with opacity control, and import/export your custom themes.

Editor

Sameko uses the Monaco Editor - the same engine that powers VS Code. This gives you a professional editing experience out of the box.

Key Editor Features

• IntelliSense - clangd-backed completion, hover and signature help for STL methods, functions, and your own code
• Bracket Colorization - matching brackets are colored for readability
• Minimap - a bird's-eye view of your code on the right side
• Multi-cursor - hold Alt and click to place multiple cursors
• Find & Replace - Ctrl + H with regex support
• Code Folding - collapse functions and blocks to focus on what matters
• Split Editor - press Ctrl + \ to work on two files side by side

Tabs

Open multiple files in tabs. Drag to reorder, middle-click to close, or right-click for options like "Close Others" and "Pin Tab". Your open tabs are restored when you reopen the IDE.

Integrated GDB debugger

Build with debug information, set a breakpoint in the gutter, then use the Debug panel without leaving the editor. Sameko drives the bundled MinGW GDB on Windows; Linux uses the system gdb.

File Explorer

The sidebar file explorer lets you browse and manage files without leaving the IDE.

• Click any .cpp, .c, or .h file to open it in a tab
• Right-click for rename, delete, and other file operations
• Drag and drop files into the IDE to open them
• Recent files are tracked and accessible from the menu

Checkpoints (Local History)

Sameko automatically saves a checkpoint every time you save a file. This means you can always go back to a previous version - even if you forgot to undo.

How It Works

1. Every Ctrl + S creates a timestamped backup
2. Open the Checkpoints panel to see all saved versions
3. Click any checkpoint to preview it
4. Restore a checkpoint to revert your file

Competitive Companion

Competitive Companion is a browser extension that automatically fetches test cases from online judges like Codeforces, AtCoder, and LeetCode.

Setup

1. Install Competitive Companion on Chrome or Firefox
2. Open Sameko IDE
3. Navigate to a problem page and click the extension icon
4. Test cases are loaded into the IDE automatically

Verdicts

After running tests, each case shows a verdict:

• AC - Accepted, output matches expected
• WA - Wrong Answer, output differs
• TLE - Time Limit Exceeded
• RE - Runtime Error
• MLE - Memory Limit Exceeded

Snippets

Snippets let you insert code templates by typing a short prefix and pressing Tab or Enter.

Built-in Snippets

STL IntelliSense

Clangd provides context-aware completion, documentation hover and signature help for STL members such as push_back, sort, lower_bound and substr. Built-in snippets and language keywords remain available while clangd warms up or when a file is unsaved.

Custom Snippets

Go to Settings → Snippets to create your own. Each snippet has a prefix (trigger word) and a body (the code that gets inserted). Use this to add your own algorithm templates like BFS, DFS, Segment Tree, or DSU.

Auto-Update

The Installer version of Sameko checks for updates automatically in the background.

How It Works

1. On startup, the IDE checks GitHub Releases for a newer version
2. If an update is found, it downloads in the background
3. A notification appears when the download is complete
4. Click "Restart" to apply the update - your open files are restored

How Sameko stacks up

Default setups only; extensions and local toolchains change the picture.

See the full feature matrix on the homepage →

Troubleshooting

IDE won't open

Right-click Sameko Dev C++.exe, select Properties, check "Unblock" at the bottom, then Apply.

"Missing DLL" error

Install Visual C++ Redistributable from this link.

Compile doesn't work

Check the following:

• Path doesn't contain special characters or spaces
• Antivirus isn't blocking gcc.exe
• File is saved with .cpp extension

Terminal not showing output

Press Ctrl + J to toggle terminal panel. If still not visible, try restarting the IDE.