rabbit (she/he) <plural>
rabbit (she/he) <plural>
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Created by rabbit (she/he) <plural> on 5/2/2023 in #help
✅ Which of these for-loops is more performant? How can I improve
public class Solution {
    public int[] DecodeOne(int[] encoded, int first)
    {
        var arr = new int[encoded.Length + 1];
        arr[0] = first;
        
        for (int i = 1; i < arr.Length; i++)
        {
            arr[i] = encoded[i-1]^arr[i-1];
        }

        return arr;
    }

    public int[] DecodeTwo(int[] encoded, int first)
    {
        var intSize = sizeof(int);
        var arr = new int[encoded.Length + 1];
        arr[0] = first;
        System.Buffer.BlockCopy(encoded, 0, arr, intSize, intSize * encoded.Length);
        
        for (int i = 1; i < arr.Length; i++)
        {
            arr[i] ^= arr[i-1];
        }

        return arr;
    }
}
public class Solution {
    public int[] DecodeOne(int[] encoded, int first)
    {
        var arr = new int[encoded.Length + 1];
        arr[0] = first;
        
        for (int i = 1; i < arr.Length; i++)
        {
            arr[i] = encoded[i-1]^arr[i-1];
        }

        return arr;
    }

    public int[] DecodeTwo(int[] encoded, int first)
    {
        var intSize = sizeof(int);
        var arr = new int[encoded.Length + 1];
        arr[0] = first;
        System.Buffer.BlockCopy(encoded, 0, arr, intSize, intSize * encoded.Length);
        
        for (int i = 1; i < arr.Length; i++)
        {
            arr[i] ^= arr[i-1];
        }

        return arr;
    }
}
Not sure if I'm thinking about this correctly or not. Would love to be pointed to resources regarding optimization if you have them. ~skr
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