ALG - Obrnuti redosled reci | C# Online Compiler

ALG - Obrnuti redosled reci by Goran74

using System;
using System.Collections.Generic;
using System.Text;

class Program
{
	//https://www.geeksforgeeks.org/reverse-a-string/#using-stack-on-time-and-on-space
	//Using Stack – O(n) Time and O(n) Space
    static string ReverseStringUsingStack(string input)
    {
        Stack<char> stack = new Stack<char>(input);

        // Push each character onto the stack
       /* foreach (char c in input)
        {
            stack.Push(c);
        }
*/
        // Pop characters to build the reversed string
        // Create a StringBuilder to hold the reversed string
        StringBuilder res = new StringBuilder();
        while (stack.Count > 0)
        {
             res.Append(stack.Pop());
        }

       // Convert the StringBuilder back to a string
        return res.ToString();
    }
	
	// Using Two Pointers - https://www.geeksforgeeks.org/reverse-a-string/
	static string ReverseUsingTwoPointers(string input){	
		StringBuilder res = new StringBuilder(input);
		int left = 0, right = res.Length - 1;
		
		while (left < right){
			char temp = res[left];
			res[left] = res[right];
			res[right] = temp;
			left ++;
			right --;
		}
		
		return res.ToString();
	}

    static void Main()
    {
        string input = "hello";
        Console.WriteLine($"Input string: {input}");
		Console.WriteLine($"ReverseStringUsingStack: {ReverseStringUsingStack(input)}");
		Console.WriteLine($"ReverseUsingTwoPointers string: {ReverseUsingTwoPointers(input)}");
    }
}

​x
 
using System;
using System.Collections.Generic;
using System.Text;
​
class Program
{
    //https://www.geeksforgeeks.org/reverse-a-string/#using-stack-on-time-and-on-space
    //Using Stack – O(n) Time and O(n) Space
    static string ReverseStringUsingStack(string input)
    {
        Stack<char> stack = new Stack<char>(input);
​
        // Push each character onto the stack
       /* foreach (char c in input)
        {
            stack.Push(c);
        }
*/
        // Pop characters to build the reversed string
        // Create a StringBuilder to hold the reversed string
        StringBuilder res = new StringBuilder();
        while (stack.Count > 0)
        {
             res.Append(stack.Pop());
        }
​
       // Convert the StringBuilder back to a string
        return res.ToString();
    }
    
    // Using Two Pointers - https://www.geeksforgeeks.org/reverse-a-string/
    static string ReverseUsingTwoPointers(string input){    
        StringBuilder res = new StringBuilder(input);
        int left = 0, right = res.Length - 1;
        
        while (left < right){
            char temp = res[left];
            res[left] = res[right];
            res[right] = temp;
            left ++;
            right --;
        }
        
        return res.ToString();
    }
​
    static void Main()
    {
        string input = "hello";
        Console.WriteLine($"Input string: {input}");
        Console.WriteLine($"ReverseStringUsingStack: {ReverseStringUsingStack(input)}");
        Console.WriteLine($"ReverseUsingTwoPointers string: {ReverseUsingTwoPointers(input)}");
    }
}
​

Compilation error (line 1, col 1): Unexpected character '•'
Compilation error (line 3, col 1): Unexpected character '•'
Compilation error (line 5, col 1): Unexpected character '•'
Compilation error (line 7, col 1): Unexpected character '•'
Compilation error (line 9, col 1): Unexpected character '•'
Compilation error (line 11, col 1): Unexpected character '•'
Compilation error (line 13, col 1): Unexpected character '•'
Compilation error (line 15, col 1): Unexpected character '•'
Compilation error (line 17, col 1): Unexpected character '•'
Compilation error (line 19, col 1): Unexpected character '•'
Compilation error (line 21, col 1): Unexpected character '•'
Compilation error (line 23, col 1): Unexpected character '•'
Compilation error (line 25, col 1): Unexpected character '•'
Compilation error (line 27, col 1): Unexpected character '•'
Compilation error (line 29, col 1): Unexpected character '•'
Compilation error (line 31, col 1): Unexpected character '•'
Compilation error (line 33, col 1): Unexpected character '•'
Compilation error (line 35, col 1): Unexpected character '•'
Compilation error (line 37, col 1): Unexpected character '•'
Compilation error (line 39, col 1): Unexpected character '•'
Compilation error (line 41, col 1): Unexpected character '•'
Compilation error (line 43, col 1): Unexpected character '•'
Compilation error (line 45, col 1): Unexpected character '•'
Compilation error (line 47, col 1): Unexpected character '•'
Compilation error (line 49, col 1): Unexpected character '•'
Compilation error (line 51, col 1): Unexpected character '•'
Compilation error (line 1, col 1): A namespace cannot directly contain members such as fields or methods

Last Run:	2:54:31 am
Compile:	0s
Execute:	0.032s
Memory:	0b
CPU:	0s

View IL Code