Cplusplus

syncline0605/Calculator/Calculator.sln

@@ -0,0 +1,31 @@
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+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.29306.81
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Calculator", "Calculator\Calculator.vcxproj", "{85006596-B3B9-49D5-B333-591D15C32B7A}"
+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
+		{85006596-B3B9-49D5-B333-591D15C32B7A}.Debug|x64.ActiveCfg = Debug|x64
+		{85006596-B3B9-49D5-B333-591D15C32B7A}.Debug|x64.Build.0 = Debug|x64
+		{85006596-B3B9-49D5-B333-591D15C32B7A}.Debug|x86.ActiveCfg = Debug|Win32
+		{85006596-B3B9-49D5-B333-591D15C32B7A}.Debug|x86.Build.0 = Debug|Win32
+		{85006596-B3B9-49D5-B333-591D15C32B7A}.Release|x64.ActiveCfg = Release|x64
+		{85006596-B3B9-49D5-B333-591D15C32B7A}.Release|x64.Build.0 = Release|x64
+		{85006596-B3B9-49D5-B333-591D15C32B7A}.Release|x86.ActiveCfg = Release|Win32
+		{85006596-B3B9-49D5-B333-591D15C32B7A}.Release|x86.Build.0 = Release|Win32
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+		HideSolutionNode = FALSE
+	EndGlobalSection
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+		SolutionGuid = {76DA4DF1-BBC7-4D88-8DC2-70F8BFF38773}
+	EndGlobalSection
+EndGlobal

syncline0605/Calculator/Calculator/Calculator.cpp

@@ -0,0 +1,143 @@
+
+
+//#include "stdafx.h"
+#include <stack>
+#include <vector>
+#include <iostream>
+#include "stdlib.h"
+#include <ctime>
+#include <string>
+#include <fstream>
+#include "Calculator.h"
+
+#define random(a,b) (rand()%(b-a+1)+a)
+
+using namespace std;
+
+Calculator::Calculator() {}
+
+string Calculator::MakeFormula() {
+	string formula = "";
+	//srand((unsigned int)time(NULL));
+	int count = random(1, 2);
+	int start = 0;
+	int number1 = random(1, 100);
+	int number2 = number1;
+	int divflag = 0;
+	formula += to_string(number1);
+	while (start <= count) {
+		int operation = random(0, 3);
+		if (operation == 3) {
+			if (divflag) {
+				number2 = 1;
+			}
+			else {
+				divflag = 1;
+				for (int i = 2; i <= 10; i++) {
+					if (number2 % i == 0) {
+						number2 = i;
+						break;
+					}
+				}
+			}
+		}
+		else {
+			divflag = 0;
+			number2 = random(1, 100);
+		}
+		formula += op[operation] + to_string(number2);
+		start++;
+	}
+	return formula;
+};
+
+string Calculator::Solve(string formula) {
+	vector<string>* tempStack = new vector<string>();
+	stack<char>* operatorStack = new stack<char>();
+	int len = formula.length();
+	int k = 0;
+	for (int j = -1; j < len - 1; j++) {
+		char formulaChar = formula[j + 1];
+		if (j == len - 2 || formulaChar == '+' || formulaChar == '-' ||
+			formulaChar == '*' || formulaChar == '/') {
+			if (j == len - 2) {
+				tempStack->push_back(formula.substr(k));
+			}
+			else {
+				if (k <= j) {
+					tempStack->push_back(formula.substr(k, j + 1 - k));
+				}
+				if (operatorStack->empty()) {
+					operatorStack->push(formulaChar);
+				}
+				else {
+					char stackChar = operatorStack->top();
+					if ((stackChar == '+' || stackChar == '-')
+						&& (formulaChar == '*' || formulaChar == '/')) {
+						operatorStack->push(formulaChar);
+					}
+					else {
+						tempStack->push_back(string(1, operatorStack->top()));
+						operatorStack->pop();
+						operatorStack->push(formulaChar);
+					}
+				}
+			}
+			k = j + 2;
+		}
+	}
+	while (!operatorStack->empty()) {
+		tempStack->push_back(string(1, operatorStack->top()));
+		operatorStack->pop();
+	}
+	stack<string>* calcStack = new stack<string>();
+	for (int i = 0; i < tempStack->size(); i++) {
+		string peekChar = tempStack->at(i);
+		if (peekChar != "+" && peekChar != "-"
+			&& peekChar != "/" && peekChar != "*") {
+			calcStack->push(peekChar);
+		}
+		else {
+			int a1 = 0;
+			int b1 = 0;
+			if (!calcStack->empty()) {
+				b1 = stoi(calcStack->top());
+				calcStack->pop();
+			}
+			if (!calcStack->empty()) {
+				a1 = stoi(calcStack->top());
+				calcStack->pop();
+			}
+			if (peekChar == "+") {
+				calcStack->push(to_string(a1 + b1));
+			}
+			else if (peekChar == "-") {
+				calcStack->push(to_string(a1 - b1));
+			}
+			else if (peekChar == "*") {
+				calcStack->push(to_string(a1 * b1));
+			}
+			else if (peekChar == "/") {
+				calcStack->push(to_string(a1 / b1));
+			}
+		}
+	}
+	return formula + "=" + calcStack->top();
+}
+
+int main(int argc, char* argv[])
+{
+	ofstream output;
+	output.open(".\\subject.txt", ios::app);
+	int n = atoi(argv[1]);
+	srand((unsigned int)time(NULL));
+	Calculator* calc = new Calculator();
+	for (int i = 0; i < n; i++) {
+		string question = calc->MakeFormula();
+		string ret = calc->Solve(question);
+		output << ret << endl;
+	}
+	output.close();
+}
+
+

syncline0605/Calculator/Calculator/Calculator.h

@@ -0,0 +1,18 @@
+#pragma once
+//#include "stdafx.h"
+#include <stack>
+#include <vector>
+#include <iostream>
+#include "stdlib.h"
+#include <ctime>
+#include <string>  
+using namespace std;
+
+class Calculator {
+private:
+	string op[4] = { "+", "-", "*", "/" };
+public:
+	Calculator();
+	string MakeFormula();
+	string Solve(string formula);
+};

syncline0605/Calculator/Calculator/Calculator.vcxproj

@@ -0,0 +1,161 @@
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+    <LinkIncremental>true</LinkIncremental>
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+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
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+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
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+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="Calculator.cpp" />
+  </ItemGroup>
+  <ItemGroup>
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+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

syncline0605/Calculator/Calculator/Calculator.vcxproj.filters

@@ -0,0 +1,27 @@
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syncline0605/Calculator/Calculator/Calculator.vcxproj.user

@@ -0,0 +1,4 @@
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