Complete lab 1

.devcontainer/Dockerfile

@@ -0,0 +1,11 @@
+FROM gcc:14
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update && apt-get install -y \
+    cmake git build-essential gdb libgtest-dev tree\
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /workspace
+
+CMD ["bash"]

.devcontainer/devcontainer.json

@@ -0,0 +1,16 @@
+{
+	"name": "C++",
+	"build": {
+		"dockerfile": "Dockerfile"
+	},
+	"customizations": {
+		"vscode": {
+			"extensions": [
+				"llvm-vs-code-extensions.vscode-clangd",
+				"ms-vscode.cpptools",
+				"ms-vscode.cmake-tools",
+				"DavidAnson.vscode-markdownlint"
+			]
+		}
+	}
+}

.gitignore

@@ -1,41 +1,2 @@
-# Prerequisites
-*.d
-
-# Compiled Object files
-*.slo
-*.lo
-*.o
-*.obj
-
-# Precompiled Headers
-*.gch
-*.pch
-
-# Linker files
-*.ilk
-
-# Debugger Files
-*.pdb
-
-# Compiled Dynamic libraries
-*.so
-*.dylib
-*.dll
-
-# Fortran module files
-*.mod
-*.smod
-
-# Compiled Static libraries
-*.lai
-*.la
-*.a
-*.lib
-
-# Executables
-*.exe
-*.out
-*.app
-
-# debug information files
-*.dwo
+build
+.cache

.vscode/launch.json

@@ -0,0 +1,19 @@
+{
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Launch LABOOOP (GDB)",
+            "type": "cppdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/build/${fileDirnameBasename}/${fileDirnameBasename}",
+            "args": [],
+            "stopAtEntry": false,
+            "cwd": "${workspaceFolder}",
+            "environment": [],
+            "externalConsole": false,
+            "MIMode": "gdb",
+            "miDebuggerPath": "/usr/bin/gdb",
+            "preLaunchTask": "CMake Build"
+        }
+    ]
+}

.vscode/settings.json

@@ -0,0 +1,6 @@
+{
+    "C_Cpp.intelliSenseEngine": "disabled",
+    "clangd.arguments": [
+        "--compile-commands-dir=${workspaceFolder}/build"
+    ]
+}

.vscode/tasks.json

@@ -0,0 +1,32 @@
+{
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "CMake Configure",
+            "type": "shell",
+            "command": "cmake",
+            "args": [
+                "-S", ".",
+                "-B", "build",
+                "-DCMAKE_C_COMPILER=gcc-14",
+                "-DCMAKE_CXX_COMPILER=g++-14",
+                "-DCMAKE_EXPORT_COMPILE_COMMANDS=ON"
+            ],
+            "problemMatcher": []
+        },
+        {
+            "label": "CMake Build",
+            "type": "shell",
+            "command": "cmake",
+            "args": [
+                "--build", "build"
+            ],
+            "dependsOn": ["CMake Configure"],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "problemMatcher": []
+        }
+    ]
+}

CMakeLists.txt

@@ -0,0 +1,7 @@
+cmake_minimum_required(VERSION 3.10.0)
+project(LABOOOP VERSION 0.1.0 LANGUAGES C CXX)
+
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+add_subdirectory(lab1)

lab1/CMakeLists.txt

@@ -0,0 +1,34 @@
+cmake_minimum_required(VERSION 3.10.0)
+project(lab1 VERSION 0.1.0 LANGUAGES C CXX)
+
+set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+include_directories(include)
+
+add_executable(lab1
+    main.cpp
+    src/solution.cpp
+)
+
+include(FetchContent)
+FetchContent_Declare(
+  googletest
+  GIT_REPOSITORY https://github.com/google/googletest.git
+  GIT_TAG v1.15.0
+  TLS_VERIFY false
+)
+
+FetchContent_MakeAvailable(googletest)
+
+enable_testing()
+
+add_executable(run_tests
+    tests/tests.cpp
+    src/solution.cpp
+)
+
+target_link_libraries(run_tests GTest::gtest_main)
+
+include(GoogleTest)
+gtest_discover_tests(run_tests)

lab1/LABOOP.code-workspace

@@ -0,0 +1,7 @@
+{
+	"folders": [
+		{
+			"path": ".."
+		}
+	]
+}

lab1/include/solution.hpp

@@ -0,0 +1,4 @@
+#pragma once
+#include <string>
+
+bool is_clean_number(const std::string& input_raw);

lab1/main.cpp

@@ -0,0 +1,18 @@
+#include <iostream>
+#include <string>
+#include "solution.hpp"
+
+using namespace std;
+
+int main() {
+    string input;
+    cin >> input;
+
+    if (is_clean_number(input)) {
+        cout << "Result is 1\n"; 
+    } else {
+        cout << "Result is 0\n";  
+    }
+
+    return 0;
+}

lab1/src/solution.cpp

@@ -0,0 +1,25 @@
+#include "solution.hpp"
+#include <cctype>
+#include <string>
+
+bool is_clean_number(const std::string& input_raw) {
+    std::string input = input_raw;
+
+    if (input_raw.empty()) {
+        return false;
+    }
+    if (input_raw[0] == '0') return false;
+    if (input_raw[0] == '-') input[0]   = '0';
+    for (char c : input) {
+        if (!isdigit(c)) {
+            return false;
+        }
+    }
+    for (size_t i = 1; i + 1 < input.size(); ++i) {
+        if (input[i] > input[i + 1]) {
+            return false;
+        }
+
+    }
+    return true;
+}

lab1/tests/tests.cpp

@@ -0,0 +1,25 @@
+#include <gtest/gtest.h>
+#include <solution.hpp>
+
+TEST(CleanNumberTest, PositiveCases) {
+    EXPECT_TRUE(is_clean_number("123"));
+    EXPECT_TRUE(is_clean_number("000"));
+    EXPECT_TRUE(is_clean_number("112233"));
+}
+
+TEST(CleanNumberTest, NegativeCases) {
+    EXPECT_FALSE(is_clean_number("321"));   
+    EXPECT_FALSE(is_clean_number("132"));   
+    EXPECT_FALSE(is_clean_number("12a3"));  
+    EXPECT_FALSE(is_clean_number(""));      
+}
+
+TEST(CleanNumberTest, NegativeNumbers) {
+    EXPECT_TRUE(is_clean_number("-123"));   
+    EXPECT_FALSE(is_clean_number("-321"));  
+}
+
+int main(int argc, char **argv) {
+    testing::InitGoogleTest(&argc, argv);
+    return RUN_ALL_TESTS();
+}