Initial commit

Author: nirajan10

.github/workflows/classroom.yml

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+name: CI - Run tests
+
+on:
+  push:
+  workflow_dispatch:
+  repository_dispatch:
+
+permissions:
+  checks: write
+  actions: read
+  contents: read
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y gcc
+
+      - name: Run shell test scripts
+        run: |
+          chmod +x tests/*.sh
+          failed=0
+
+          for t in \
+            tests/testq1.sh \
+            tests/testq2.sh \
+            tests/testq3.sh \
+            tests/testq4.sh \
+            tests/testq5.sh \
+            tests/testq6.sh \
+            tests/testq7.sh \
+            tests/testq8.sh \
+            tests/testq9.sh \
+            tests/testq10.sh \
+            tests/testq11.sh \
+            tests/testq12.sh \
+            tests/testq13.sh \
+            tests/testq14.sh \
+            tests/testq15.sh \
+            tests/testq16.sh \
+            tests/testq17.sh \
+            tests/testq18.sh \
+            tests/testq19.sh \
+            tests/testq20.sh; do
+              echo "Running $t ..."
+              if ! $t; then
+                failed=1   # record failure but continue
+              fi
+              echo
+          done
+
+          if [ $failed -ne 0 ]; then
+            echo "❌ Some tests failed"
+            exit 1
+          else
+            echo "✅ All tests passed"
+          fi

.gitignore

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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[codz]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py.cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# UV
+#   Similar to Pipfile.lock, it is generally recommended to include uv.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#uv.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+#poetry.toml
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#   pdm recommends including project-wide configuration in pdm.toml, but excluding .pdm-python.
+#   https://pdm-project.org/en/latest/usage/project/#working-with-version-control
+#pdm.lock
+#pdm.toml
+.pdm-python
+.pdm-build/
+
+# pixi
+#   Similar to Pipfile.lock, it is generally recommended to include pixi.lock in version control.
+#pixi.lock
+#   Pixi creates a virtual environment in the .pixi directory, just like venv module creates one
+#   in the .venv directory. It is recommended not to include this directory in version control.
+.pixi
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.envrc
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
+
+# Abstra
+# Abstra is an AI-powered process automation framework.
+# Ignore directories containing user credentials, local state, and settings.
+# Learn more at https://abstra.io/docs
+.abstra/
+
+# Visual Studio Code
+#  Visual Studio Code specific template is maintained in a separate VisualStudioCode.gitignore 
+#  that can be found at https://github.com/github/gitignore/blob/main/Global/VisualStudioCode.gitignore
+#  and can be added to the global gitignore or merged into this file. However, if you prefer, 
+#  you could uncomment the following to ignore the entire vscode folder
+# .vscode/
+
+# Ruff stuff:
+.ruff_cache/
+
+# PyPI configuration file
+.pypirc
+
+# Cursor
+#  Cursor is an AI-powered code editor. `.cursorignore` specifies files/directories to
+#  exclude from AI features like autocomplete and code analysis. Recommended for sensitive data
+#  refer to https://docs.cursor.com/context/ignore-files
+.cursorignore
+.cursorindexingignore
+
+# Marimo
+marimo/_static/
+marimo/_lsp/
+__marimo__/

README.md

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+# Assignment 2: Conditional and loops
+
+## Instructions
+
+1. Write code in the corresponding `src/` file for each programming task.
+2. Do not change file names — tests depend on them.
+3. Commit and push your changes to GitHub.
+
+---
+
+## Questions
+
+**Q1.** Write a C program that takes an integer input from the user and determines if it is positive, negative, or zero.
+
+**Q2.** Write a C program that prompts the user for their age and determines if they are eligible to vote (consider the legal voting age in your country).
+
+**Q3.** Write a C program that calculates the absolute value of a given number without using the built-in absolute value function.
+
+**Q4.** Write a C program that prints all even numbers between 1 and 100 using a for loop.
+
+**Q5.** Write a C program that prompts the user for a positive integer and calculates the factorial of that number using a while loop.
+
+**Q6.** Write a C program that prompts the user for a number and prints its multiplication table up to 10 using a do-while loop.
+
+**Q7.** Write a C program that prints a pattern of asterisks.
+
+```
+    *
+    **
+    ***
+    ****
+    *****
+    ****
+    ***
+    **
+    *
+```
+
+**Q8.** Write a C program that prints a pattern of asterisks.
+
+```
+    *
+    **
+    ***
+    ****
+    *****
+```
+
+**Q9.** Write a C program that prints a pattern of asterisks.
+
+```
+    *****
+    ****
+    ***
+    **
+    *
+```
+
+**Q10.** Write a C program that prints a pattern of asterisks.
+
+```
+      *
+     ***
+    *****
+```
+
+**Q11.** Write a C program that prints a pattern of asterisks.
+
+```
+    *****
+     ***
+      *
+```
+
+**Q12.** Write a C program that prints all numbers from 1 to 100 using a for loop.
+
+**Q13.** Write a C program that calculates the sum of all even numbers from 1 to 50 using a while loop.
+
+**Q14.** Write a C program that prompts the user for a positive integer and prints all the factors of that number using a for loop.
+
+**Q15.** Write a C program that prompts the user for a positive integer and checks if it is a prime number using a while loop.
+
+**Q16.** Write a C program that calculates the factorial of a given number using a do-while loop.
+
+**Q17.** Write a C program that prompts the user for a positive integer and prints a countdown from that number to 1 using a for loop.
+
+**Q18.** Write a C program that prompts the user for a positive integer and prints the multiplication table for that number up to 10 using a while loop.
+
+**Q19.** Write a C program that prompts the user for a positive integer and prints a pattern of asterisks (*) in a square shape using nested loops.
+
+Example: User’s Input = 2, then pattern to print will be:
+
+```
+    * *
+    * *
+```
+
+**Q20.** Write a C program that prompts the user for a number between 1 and 7 and prints the corresponding day of the week using a switch-case statement.
+
+---
+
+## Deadline: 23:59, Saturday, 6th Sep, 2025

src/q1.c

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+/* Write a C program that takes an integer input from the user and determines if it is positive, negative, or zero.
+Expected Output:
+If n > 0, print Positive (case-insensitive, extra messages allowed).
+If n < 0, print Negative (case-insensitive, extra messages allowed).
+If n == 0, print Zero (case-insensitive, extra messages allowed).
+*/

src/q10.c

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+/* Write a C program that prints a pattern of asterisks.
+      *
+     ***
+    *****
+*/

src/q11.c

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+/* Write a C program that prints a pattern of asterisks.
+    *****
+     ***
+      *
+*/