static void Main(string[] args)
{
var n = 100;
var AllTime = 0L;
var stack = new MyStack <int>(4, 2);
for (var j = 0; j < 50; ++j)
{
var watch = Stopwatch.StartNew();
for (var i = 0; i != n; ++i)
{
stack.Push(i);
}
for (var i = 0; i != n; ++i)
{
stack.Peek();
stack.Pop();
}
watch.Stop();
AllTime += watch.ElapsedMilliseconds;
}
Console.WriteLine(AllTime / 50);
while (SonertTop)
{
try
{
ReversePolish(Console.ReadLine());
}
catch (Exception)
{
Console.WriteLine("Exit");
break;
}
}
Console.ReadKey();
}
private static void ReversePolish(string sample)
{
var result = string.Empty;
var stack = new MyStack <char>();
for (var i = 0; i < sample.Length; i++)
{
if (char.IsNumber(sample[i]))
{
if (i != 0 && !char.IsNumber(sample[i - 1]))
{
result += ' ';
}
result += sample[i];
}
else
{
switch (sample[i])
{
case '(':
stack.Push(sample[i]);
break;
case ')':
{
while (stack.Peek() != '(' && Priority(stack.Peek()) >= Priority(sample[i]))
{
result += $" {stack.Peek()}";
stack.Pop();
}
stack.Pop();
break;
}
default:
{
while (!stack.Empty() && Priority(stack.Peek()) >= Priority(sample[i]))
{
result += $" {stack.Peek()}";
stack.Pop();
}
stack.Push(sample[i]);
break;
}
}
}
}
while (!stack.Empty())
{
result += $" {stack.Peek()}";
stack.Pop();
}
Console.WriteLine(result);
}
