Initial commit with project files

.vs/transactions2/v17/DocumentLayout.backup.json

@@ -0,0 +1,37 @@
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.vs/transactions2/v17/DocumentLayout.json

@@ -0,0 +1,37 @@
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transactions2.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.12.35527.113 d17.12
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "transactions2", "transactions2\transactions2.vcxproj", "{2975471B-6588-4B89-82BB-FF9F167FE4FC}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{2975471B-6588-4B89-82BB-FF9F167FE4FC}.Debug|x64.ActiveCfg = Debug|x64
+		{2975471B-6588-4B89-82BB-FF9F167FE4FC}.Debug|x64.Build.0 = Debug|x64
+		{2975471B-6588-4B89-82BB-FF9F167FE4FC}.Debug|x86.ActiveCfg = Debug|Win32
+		{2975471B-6588-4B89-82BB-FF9F167FE4FC}.Debug|x86.Build.0 = Debug|Win32
+		{2975471B-6588-4B89-82BB-FF9F167FE4FC}.Release|x64.ActiveCfg = Release|x64
+		{2975471B-6588-4B89-82BB-FF9F167FE4FC}.Release|x64.Build.0 = Release|x64
+		{2975471B-6588-4B89-82BB-FF9F167FE4FC}.Release|x86.ActiveCfg = Release|Win32
+		{2975471B-6588-4B89-82BB-FF9F167FE4FC}.Release|x86.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal

transactions2/a

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+[
+    {
+        "hash": "000abc...",
+        "index": 1,
+        "miner": "Bob",
+        "nonce": 1234,
+        "reward": 100.0,
+        "secret_info": "",
+        "timestamp": 1649168215,
+        "transactions": [
+            {
+                "from": "Alice",
+                "to": "Bob",
+                "value": 50.0
+            },
+            {
+                "from": "SYSTEM",
+                "to": "Alice",
+                "value": 10.0
+            }
+        ]
+    },
+    {
+        "hash": "000def...",
+        "index": 2,
+        "miner": "Alice",
+        "nonce": 5432,
+        "reward": 50.0,
+        "secret_info": "secret",
+        "timestamp": 1649168216,
+        "transactions": [
+            {
+                "from": "Bob",
+                "to": "Din",
+                "value": 30.0
+            },
+            {
+                "from": "SYSTEM",
+                "to": "Bob",
+                "value": 5.0
+            }
+        ]
+    }
+]

transactions2/block1.json

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+[
+    {
+        "index": 1,
+        "hash": "000abc...",
+        "timestamp": 1649168215,
+        "miner": "Bob",
+        "reward": 100.0,
+        "secret_info": "",
+        "nonce": 1234,
+        "transactions": [
+            {"from": "Alice", "to": "Bob", "value": 50.0},
+            {"from": "SYSTEM", "to": "Alice", "value": 10.0}
+        ]
+    },
+    {
+        "index": 2,
+        "hash": "000def...",
+        "timestamp": 1649168216,
+        "miner": "Alice",
+        "reward": 50.0,
+        "secret_info": "secret",
+        "nonce": 5432,
+        "transactions": [
+            {"from": "Bob", "to": "Din", "value": 30.0},
+            {"from": "SYSTEM", "to": "Bob", "value": 5.0}
+        ]
+    }
+]

transactions2/d

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+[
+    {
+        "hash": "000abc...",
+        "index": 1,
+        "miner": "Bob",
+        "nonce": 1234,
+        "reward": 100.0,
+        "secret_info": "",
+        "timestamp": 1649168215,
+        "transactions": [
+            {
+                "from": "Alice",
+                "to": "Bob",
+                "value": 50.0
+            },
+            {
+                "from": "SYSTEM",
+                "to": "Alice",
+                "value": 10.0
+            }
+        ]
+    },
+    {
+        "hash": "000def...",
+        "index": 2,
+        "miner": "Alice",
+        "nonce": 5432,
+        "reward": 50.0,
+        "secret_info": "secret",
+        "timestamp": 1649168216,
+        "transactions": [
+            {
+                "from": "Bob",
+                "to": "Din",
+                "value": 30.0
+            },
+            {
+                "from": "SYSTEM",
+                "to": "Bob",
+                "value": 5.0
+            }
+        ]
+    }
+]

transactions2/transactions2.cpp

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+#include <iostream>
+#include <vector>
+#include <string>
+#include <algorithm>
+#include <map>
+#include <iomanip>
+#include <fstream>
+#include <cctype>
+#include "json.hpp"
+
+using namespace std;
+using json = nlohmann::json;
+
+struct Transaction {
+    string from;
+    string to;
+    double value;
+};
+
+struct Block {
+    int index;
+    string hash;
+    int64_t timestamp;
+    string miner;
+    double reward;
+    vector<Transaction> transactions;
+    string secret_info;
+    int nonce;
+};
+
+vector<Block> blocks;
+
+
+bool loadBlocksFromFile(const string& filename) {
+    ifstream input_file(filename);
+    if (!input_file.is_open()) {
+        cerr << "Error: Cannot open file " << filename << endl;  //Ошибка: не удалось открыть файл
+        return false;
+    }
+
+    try {
+        json j;
+        input_file >> j;
+        blocks.clear();
+
+        for (const auto& item : j) {
+            Block block;
+            block.index = item["index"];
+            block.hash = item["hash"];
+            block.timestamp = item["timestamp"];
+            block.miner = item["miner"];
+            block.reward = item["reward"];
+            block.secret_info = item.value("secret_info", "");
+            block.nonce = item["nonce"];
+
+            for (const auto& tx_item : item["transactions"]) {
+                Transaction tx;
+                tx.from = tx_item["from"];
+                tx.to = tx_item["to"];
+                tx.value = tx_item["value"];
+                block.transactions.push_back(tx);
+            }
+
+            blocks.push_back(block);
+        }
+
+                 //Успешно загружено                         //блоков из файла
+        cout << "Successfully loaded " << blocks.size() << " blocks from " << filename << endl;
+        return true;
+    }
+    catch (const exception& e) {
+        cerr << "JSON parsing error: " << e.what() << endl;  //Ошибка при чтении JSON:
+        return false;
+    }
+}
+
+bool saveBlocksToFile(const string& filename) {
+    json j;
+
+    for (const auto& block : blocks) {
+        json block_json;
+        block_json["index"] = block.index;
+        block_json["hash"] = block.hash;
+        block_json["timestamp"] = block.timestamp;
+        block_json["miner"] = block.miner;
+        block_json["reward"] = block.reward;
+        block_json["secret_info"] = block.secret_info;
+        block_json["nonce"] = block.nonce;
+
+        for (const auto& tx : block.transactions) {
+            json tx_json;
+            tx_json["from"] = tx.from;
+            tx_json["to"] = tx.to;
+            tx_json["value"] = tx.value;
+            block_json["transactions"].push_back(tx_json);
+        }
+
+        j.push_back(block_json);
+    }
+
+    ofstream output_file(filename);
+    if (!output_file.is_open()) {
+        cerr << "Error: Cannot create file " << filename << endl;  //Ошибка: не удалось создать файл
+        return false;
+    }
+
+    output_file << setw(4) << j << endl;
+    cout << "Successfully saved " << blocks.size() << " blocks to " << filename << endl;  //Успешно сохранено  //блоков в файл
+    return true;
+}
+
+void printBlock(const Block& block) {
+    cout << "index: " << block.index << "\n"
+        << "hash: " << block.hash << "\n"
+        << "timestamp: " << block.timestamp << "\n"
+        << "miner: " << block.miner << "\n"
+        << "reward: " << fixed << setprecision(2) << block.reward << "\n"
+        << "secret_info: " << block.secret_info << "\n"
+        << "nonce: " << block.nonce << "\n"
+        << "Transactions (" << block.transactions.size() << "):\n";
+
+    for (const auto& tx : block.transactions) {
+        cout << "  " << tx.from << " -> " << tx.to << ": " << tx.value << "\n";
+    }
+    cout << "----------------------------\n";
+}
+
+void printAllBlocks() {
+    if (blocks.empty()) {
+        cout << "There is no data about the blocks.Download them first." << endl;   //Нет данных о блоках. Загрузите их сначала.
+        return;
+    }
+
+    for (const auto& block : blocks) {
+        printBlock(block);
+    }
+}
+
+void filterByMiner() {
+    if (blocks.empty()) {
+        cout << "There is no data about the blocks. Download them first." << endl;  //Нет данных о блоках. Загрузите их сначала.
+        return;
+    }
+
+    string minerName;
+    cout << "Enter the miner's name: "; //Введите имя майнера:
+    cin >> minerName;
+
+    bool found = false;
+    for (const auto& block : blocks) {
+        if (block.miner == minerName) {
+            printBlock(block);
+            found = true;
+        }
+    }
+
+    if (!found) {
+        cout << "Blocks with a miner " << minerName << " not found." << endl; //Блоки с майнером ...  не найдены
+    }
+}
+
+void printTransactionsCount() {
+    if (blocks.empty()) {
+        cout << "There is no data about the blocks. Download them first." << endl;  //Нет данных о блоках. Загрузите их сначала.
+        return;
+    }
+
+    cout << "Number of transactions in blocks: " << endl;   //Количество транзакций в блоках:
+    for (const auto& block : blocks) {
+        cout << "block " << block.index << ": "
+            << block.transactions.size() << " transactions" << endl;
+    }
+}
+
+void calculateBalances() {
+    if (blocks.empty()) {
+        cout << "There is no data about the blocks. Download them first." << endl;  //Нет данных о блоках. Загрузите их сначала.
+        return;
+    }
+
+    map<string, double> balances;
+
+    for (const auto& block : blocks) {
+        for (const auto& tx : block.transactions) {
+            if (tx.from != "SYSTEM") {
+                balances[tx.from] -= tx.value;
+            }
+            balances[tx.to] += tx.value;
+        }
+    }
+
+    cout << "User balances:" << endl; //Балансы пользователей:
+    for (const auto& entry : balances) {
+        cout << entry.first << ": " << fixed << setprecision(2) << entry.second << endl;
+    }
+}
+
+void sortBlocksByIndex() {
+    if (blocks.empty()) {
+        cout << "There is no data about the blocks. Download them first." << endl;
+        return;
+    }
+
+    for (size_t i = 0; i < blocks.size(); ++i) {
+        for (size_t j = 0; j < blocks.size() - i - 1; ++j) {
+            if (blocks[j].index > blocks[j + 1].index) {
+                swap(blocks[j], blocks[j + 1]);
+            }
+        }
+    }
+    cout << "The blocks are sorted by index." << endl;   //Блоки отсортированы по индексу.
+}
+
+void printEvenIndexBlocks() {
+    if (blocks.empty()) {
+        cout << "There is no data about the blocks. Download them first." << endl;
+        return;
+    }
+
+    cout << "Blocks with an even index:" << endl; //Блоки с четным индексом:
+    for (const auto& block : blocks) {
+        if (block.index % 2 == 0) {
+            printBlock(block);
+        }
+    }
+}
+
+void printVowelMinerBlocks() {
+    if (blocks.empty()) {
+        cout << "There is no data about the blocks. Download them first." << endl;
+        return;
+    }
+
+    const string vowels = "AEIOUaeiou";
+    cout << "Blocks where the miner starts with a vowel:" << endl; //Блоки, где майнер начинается с гласной:
+
+    for (const auto& block : blocks) {
+        if (!block.miner.empty() && vowels.find(block.miner[0]) != string::npos) {
+            printBlock(block);
+        }
+    }
+}
+
+void printFourDigitNonceBlocks() {
+    if (blocks.empty()) {
+        cout << "There is no data about the blocks. Download them first." << endl;
+        return;
+    }
+
+    cout << "Blocks with a 4-digit nonce (1000-9999):" << endl; //Блоки с 4-значным nonce (1000-9999):
+    for (const auto& block : blocks) {
+        if (block.nonce >= 1000 && block.nonce <= 9999) {
+            printBlock(block);
+        }
+    }
+}
+
+void showMenu() {
+    cout << "\n=== Menu ===" << endl  //Загрузить блоки из файла
+        << "1. Load blocks from file" << endl  //Загрузить блоки из файла
+        << "2. Save blocks to file" << endl  //Сохранить блоки в файл
+        << "3. Print all blocks" << endl  //Вывести все блоки
+        << "4. Filter by miner" << endl  //Фильтр по майнеру
+        << "5. Transaction count" << endl  //Количество транзакций
+        << "6. User balances" << endl   //Балансы пользователей
+        << "7. Sort by index" << endl  //Сортировать по индексу
+        << "8. Blocks with even index" << endl  //Блоки с четным индексом
+        << "9. Blocks where miner starts with a vowel" << endl  //Блоки, где майнер начинается с гласной
+        << "10. Blocks with 4-digit nonce" << endl  //Блоки с 4-значным nonce
+        << "0. Exit" << endl  //Выход
+        << "Enter choice: "; //Введите номер
+}
+
+int main() {
+    int choice;
+    do {
+        showMenu();
+        cin >> choice;
+
+        switch (choice) {
+        case 1: {
+            string filename;
+            cout << "Enter the file name to download: "; //Введите имя файла для загрузки:
+            cin >> filename;
+            if (!loadBlocksFromFile(filename)) {
+                cout << "File upload error!" << endl; //Ошибка загрузки файла!
+            }
+            break;
+        }
+        case 2: {
+            string filename;
+            cout << "Enter the file name to save: "; //Введите имя файла для сохранения:
+            cin >> filename;
+            if (!saveBlocksToFile(filename)) {
+                cout << "File upload error!" << endl;
+            }
+            break;
+        }
+        case 3:
+            printAllBlocks();
+            break;
+        case 4:
+            filterByMiner();
+            break;
+        case 5:
+            printTransactionsCount();
+            break;
+        case 6:
+            calculateBalances();
+            break;
+        case 7:
+            sortBlocksByIndex();
+            break;
+        case 8:
+            printEvenIndexBlocks();
+            break;
+        case 9:
+            printVowelMinerBlocks();
+            break;
+        case 10:
+            printFourDigitNonceBlocks();
+            break;
+        case 0:
+            cout << "Exit the program..." << endl;
+            break;
+        default:
+            cout << "Wrong choice! Try again." << endl; //Неверный выбор! Попробуйте снова.
+        }
+    } while (choice != 0);
+
+    return 0;
+}

transactions2/transactions2.vcxproj

@@ -0,0 +1,135 @@
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+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="transactions2.cpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

transactions2/transactions2.vcxproj.filters

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Исходные файлы">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Файлы заголовков">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="Файлы ресурсов">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="transactions2.cpp">
+      <Filter>Исходные файлы</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>

transactions2/transactions2.vcxproj.user

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup />
+</Project>

transactions2/x64/Debug/transactions2.exe.recipe

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project>
+  <ProjectOutputs>
+    <ProjectOutput>
+      <FullPath>D:\Study\programming\transactions\transactions2\x64\Debug\transactions2.exe</FullPath>
+    </ProjectOutput>
+  </ProjectOutputs>
+  <ContentFiles />
+  <SatelliteDlls />
+  <NonRecipeFileRefs />
+</Project>

transactions2/x64/Debug/transactions2.log

@@ -0,0 +1,2 @@
+  transactions2.cpp
+LINK : fatal error LNK1168: не удается открыть D:\Study\programming\transactions\transactions2\x64\Debug\transactions2.exe для записи

transactions2/x64/Debug/transactions2.tlog/Cl.items.tlog

@@ -0,0 +1 @@
+D:\Study\programming\transactions\transactions2\transactions2\transactions2.cpp;D:\Study\programming\transactions\transactions2\transactions2\x64\Debug\transactions2.obj

transactions2/x64/Debug/transactions2.tlog/link.command.1.tlog

@@ -0,0 +1 @@
+

transactions2/x64/Debug/transactions2.tlog/link.read.1.tlog

@@ -0,0 +1 @@
+

transactions2/x64/Debug/transactions2.tlog/link.secondary.1.tlog

@@ -0,0 +1,2 @@
+^D:\STUDY\PROGRAMMING\TRANSACTIONS\TRANSACTIONS2\TRANSACTIONS2\X64\DEBUG\TRANSACTIONS2.OBJ
+D:\Study\programming\transactions\transactions2\transactions2\x64\Debug\transactions2.ilk

transactions2/x64/Debug/transactions2.tlog/link.write.1.tlog

@@ -0,0 +1 @@
+

transactions2/x64/Debug/transactions2.tlog/transactions2.lastbuildstate

@@ -0,0 +1,2 @@
+PlatformToolSet=v143:VCToolArchitecture=Native64Bit:VCToolsVersion=14.42.34433:TargetPlatformVersion=10.0.26100.0:
+Debug|x64|D:\Study\programming\transactions\transactions2\|