[SOLUTION] CheckParenthesisOpenClose | C# Online Compiler

[SOLUTION] CheckParenthesisOpenClose by evillar

using System;
using System.Collections.Generic;
using System.Linq;
					
public class Program
{
	private static bool CheckInput(string input)
	{
		if (input == null)
		{
			return false;
		}

		Stack<char> tempStack = new Stack<char>();
		foreach (char c in input)
		{
			if (c == '[' || c == '{' || c == '(')
			{
				tempStack.Push(c);
			}
			else if (c == ']' || c == '}' || c == ')')
			{
				char prev = tempStack.Pop();
				if ((c == ']' && prev != '[') || (c == ')' && prev != '(') || (c == '}' && prev != '{'))
				{
					return false;
				}
			}
			else
			{
				return false;
			}
		}

		return !tempStack.Any();
	}
	
	public static void Main()
	{
		Console.WriteLine(CheckInput("[{{(())[())}}]") ? "Wrong" : "Correct");
		Console.WriteLine(CheckInput("[{{(())$())}}]") ? "Wrong" : "Correct");
		Console.WriteLine(CheckInput("") ? "Correct" : "Wrong");
		Console.WriteLine(CheckInput(null) ? "Wrong" : "Correct");
	}
}

​x
 
using System;
using System.Collections.Generic;
using System.Linq;
                    
public class Program
{
    private static bool CheckInput(string input)
    {
        if (input == null)
        {
            return false;
        }
​
        Stack<char> tempStack = new Stack<char>();
        foreach (char c in input)
        {
            if (c == '[' || c == '{' || c == '(')
            {
                tempStack.Push(c);
            }
            else if (c == ']' || c == '}' || c == ')')
            {
                char prev = tempStack.Pop();
                if ((c == ']' && prev != '[') || (c == ')' && prev != '(') || (c == '}' && prev != '{'))
                {
                    return false;
                }
            }
            else
            {
                return false;
            }
        }
​
        return !tempStack.Any();
    }
    
    public static void Main()
    {
        Console.WriteLine(CheckInput("[{{(())[())}}]") ? "Wrong" : "Correct");
        Console.WriteLine(CheckInput("[{{(())$())}}]") ? "Wrong" : "Correct");
        Console.WriteLine(CheckInput("") ? "Correct" : "Wrong");
        Console.WriteLine(CheckInput(null) ? "Wrong" : "Correct");
    }
}

Points in circle: 69

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0000000000000000000000000
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Hash iterations: 68

Cached Result
Last Run:	6:24:32 pm
Compile:	0.182s
Execute:	0.005s
Memory:	96kb
CPU:	0s

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