diff --git a/.gitignore b/.gitignore
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+++ b/.gitignore
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+# Created by .ignore support plugin (hsz.mobi)
+### JetBrains template
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and WebStorm
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# User-specific stuff
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries
+.idea/**/shelf
+
+# Generated files
+.idea/**/contentModel.xml
+
+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/dbnavigator.xml
+
+# Gradle
+.idea/**/gradle.xml
+.idea/**/libraries
+
+# Gradle and Maven with auto-import
+# When using Gradle or Maven with auto-import, you should exclude module files,
+# since they will be recreated, and may cause churn. Uncomment if using
+# auto-import.
+# .idea/modules.xml
+# .idea/*.iml
+# .idea/modules
+# *.iml
+# *.ipr
+
+# CMake
+cmake-build-*/
+
+# Mongo Explorer plugin
+.idea/**/mongoSettings.xml
+
+# File-based project format
+*.iws
+
+# IntelliJ
+out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+
+# Editor-based Rest Client
+.idea/httpRequests
+
+# Android studio 3.1+ serialized cache file
+.idea/caches/build_file_checksums.ser
+
+### Python template
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+pip-wheel-metadata/
+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
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+.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
+
+# celery beat schedule file
+celerybeat-schedule
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.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/
diff --git a/.idea/algorithm.iml b/.idea/algorithm.iml
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index 0000000..6711606
--- /dev/null
+++ b/.idea/algorithm.iml
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+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/inspectionProfiles/Project_Default.xml b/.idea/inspectionProfiles/Project_Default.xml
new file mode 100644
index 0000000..9d9a2e5
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+++ b/.idea/inspectionProfiles/Project_Default.xml
@@ -0,0 +1,33 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
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index 0000000..8656114
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,7 @@
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..2ba6d76
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..94a25f7
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+
+
+
+
+
+
\ No newline at end of file
diff --git a/deterministic_finite_automat.md b/deterministic_finite_automat.md
new file mode 100644
index 0000000..06a71ac
--- /dev/null
+++ b/deterministic_finite_automat.md
@@ -0,0 +1,59 @@
+```
+class State:
+ def __init__(self, value: str, is_end: bool):
+ self.value = value
+ self.is_end = is_end
+
+
+class Rule:
+ def __init__(self):
+ self.table = dict()
+
+ def add_rule(self, input_character: str, current_state: State, target_state: State):
+ self.table[(input_character, current_state)] = target_state
+
+ def lookup_rule(self, input_character: str, current_state):
+ return self.table[(input_character, current_state)]
+
+
+class Graph:
+ def __init__(self, rule: Rule, alphabet: list, start_state: State):
+ self.rule = rule
+ self.alphabet = alphabet
+ self.current_state = start_state
+
+ def is_valid(self, input_string: str) -> bool:
+ temp = self.current_state
+ for input_char in input_string:
+ if input_char in self.alphabet:
+ temp = self.rule.lookup_rule(input_char, temp)
+ else:
+ raise ValueError("State is not full")
+ return temp.is_end
+
+
+if __name__ == '__main__':
+ q0 = State("q0", True)
+
+ alphabet = ['0', '1']
+
+ q1 = State("q1", False)
+ q2 = State("q2", False)
+ q3 = State("q3", False)
+ rule = Rule()
+ rule.add_rule("1", q0, q1)
+ rule.add_rule("1", q1, q0)
+
+ rule.add_rule("1", q2, q3)
+ rule.add_rule("1", q3, q2)
+
+ rule.add_rule("0", q0, q2)
+ rule.add_rule("0", q2, q0)
+
+ rule.add_rule("0", q0, q1)
+ rule.add_rule("0", q1, q0)
+
+ graph = Graph(rule, alphabet, q0)
+ line = input("Please enter a string: ")
+ print(graph.is_valid(line))
+```
\ No newline at end of file
diff --git a/deterministic_finite_automat.py b/deterministic_finite_automat.py
new file mode 100644
index 0000000..960fb8e
--- /dev/null
+++ b/deterministic_finite_automat.py
@@ -0,0 +1,57 @@
+class State:
+ def __init__(self, value: str, is_end: bool):
+ self.value = value
+ self.is_end = is_end
+
+
+class Rule:
+ def __init__(self):
+ self.table = dict()
+
+ def add_rule(self, input_character: str, current_state: State, target_state: State):
+ self.table[(input_character, current_state)] = target_state
+
+ def lookup_rule(self, input_character: str, current_state):
+ return self.table[(input_character, current_state)]
+
+
+class Graph:
+ def __init__(self, rule: Rule, alphabet: list, start_state: State):
+ self.rule = rule
+ self.alphabet = alphabet
+ self.current_state = start_state
+
+ def is_valid(self, input_string: str) -> bool:
+ temp = self.current_state
+ for input_char in input_string:
+ if input_char in self.alphabet:
+ temp = self.rule.lookup_rule(input_char, temp)
+ else:
+ raise ValueError("State is not full")
+ return temp.is_end
+
+
+if __name__ == '__main__':
+ q0 = State("q0", True)
+
+ alphabet = ['0', '1']
+
+ q1 = State("q1", False)
+ q2 = State("q2", False)
+ q3 = State("q3", False)
+ rule = Rule()
+ rule.add_rule("1", q0, q1)
+ rule.add_rule("1", q1, q0)
+
+ rule.add_rule("1", q2, q3)
+ rule.add_rule("1", q3, q2)
+
+ rule.add_rule("0", q0, q2)
+ rule.add_rule("0", q2, q0)
+
+ rule.add_rule("0", q0, q1)
+ rule.add_rule("0", q1, q0)
+
+ graph = Graph(rule, alphabet, q0)
+ line = input("Please enter a string: ")
+ print(graph.is_valid(line))