static void Main(string[] args)
{
ReversePolishNotation rpn = new ReversePolishNotation();
RCalculator MyCalc = new RCalculator(new List <IOperation>()
{
new Addition(),
new Substraction(),
new Multiplication(),
new Division()
});
string inputString = Console.ReadLine();
/* Проверка выражения на верную структуру */
if (Regex.IsMatch(inputString, @"[^()0-9*/+-]|[*/+-]{2,}|\A[*/+-]|[*/+-]\z"))
{
Console.WriteLine("Invalid input");
Environment.Exit(-1);
}
rpn.Parse(inputString);
List <string> parsedExpression = rpn.RpnExpression;
List <string> executionList = new List <string>();
float leftOp = 0;
float rightOp = 0;
float result = 0;
string operation = "";
foreach (var item in parsedExpression)
{
if (!float.TryParse(item, out _)) //Если item не парсится во float, то item это символ операции
{
leftOp = float.Parse(executionList[^ 2]);
static void Main(string[] args)
{
while (true)
{
Console.Write("Введите выражение: ");
Console.WriteLine(ReversePolishNotation.Calculate(Console.ReadLine())); //Считываем, и выводим результат
}
}
public double Calculate(String expression)
{
string[] str = ReversePolishNotation.ConvertToReversePolishNotation(ReversePolishNotation.DeleteSpaces(expression));
var stack = new MyStack <double>();
foreach (var s in str)
{
double number;
if (Double.TryParse(s, out number))
{
stack.Push(number);
}
else
{
double num1;
double num2;
switch (s)
{
case "+":
num1 = stack.Pop();
num2 = stack.Pop();
stack.Push(num1 + num2);
break;
case "-":
num1 = stack.Pop();
num2 = stack.Pop();
stack.Push(num2 - num1);
break;
case "*":
num1 = stack.Pop();
num2 = stack.Pop();
stack.Push(num1 * num2);
break;
case "/":
num1 = stack.Pop();
num2 = stack.Pop();
stack.Push(num2 / num1);
break;
}
}
}
return(stack.Pop());
}
static void Main(string[] args)
{
ReversePolishNotation rpn = new ReversePolishNotation();
while (true)
{
Console.WriteLine("Введите выражение:");
Console.WriteLine("Введите Выход/Exit, чтобы закончить операцию");
string expression = "";
bool exitStatus = false;
while (true)
{
expression = Console.ReadLine();
expression = expression.ToLower();
expression = expression.Replace(" ", string.Empty);
if (expression == "выход" || expression == "exit" || expression == "ds[jl" || expression == "учше")
{
exitStatus = true;
break;
}
if (rpn.StringToRPN(expression) != "Decoding error, let's try again")
{
break;
}
Console.WriteLine("Try to enter expression correctly again");
}
if (exitStatus)
{
break;
}
Console.WriteLine(rpn.StringToRPN(expression));
Console.WriteLine(rpn.RPNToAnswer(rpn.StringToRPN(expression)));
}
}
