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copied!<p>I have a txt file looking like this:</p> <pre><code>1 5 7 5 4 8 19 6 23 56 78 9 </code></pre> <p>I want to read all these values and write them to new file, but with different order.</p> <p>Output file should look like this:</p> <pre><code>1 4 23 5 8 56 7 19 78 5 6 9 </code></pre> <p>Right now I am trying to read everything into array, but I am not sure how to handle this data later...</p> <pre><code>string line; using (StreamReader sr = new StreamReader(@"C:\Users\as\Desktop\file\1.txt", Encoding.Default)) { line = sr.ReadToEnd(); string[] lines = line.Split('\n'); string newLine = lines[0].ToString(); } </code></pre> <p>My input file can have even up to 400000 columns.</p> <p>EDIT 2:</p> <p>I tried sth like this, but still not working, any suggestions?</p> <pre><code>using (StreamReader sr = new StreamReader(@"C:\Users\as\Desktop\files\1.txt", Encoding.Default)) { List<string> list = new List<string>(); while ((line = sr.ReadLine()) != null) { list.Add(line); } int valuesNumber = list[0].Split(' ').Count(); List<string> final = new List<string>(); for (int j = 0; j < valuesNumber ; j++) { for (int i = 0; i < list.Count; i++) { string[] stringArray = list[i].Split(' '); final .Add(stringArray[j]); } } using (StreamWriter writer = new StreamWriter(@"C:\Users\as\Desktop\files\2.txt", true)) { foreach (string item in result) { writer.WriteLine(item.ToString()); } } } </code></pre> <p>But I still get every number under previous one, like this:</p> <pre><code>1 4 23 5 8 56 7 19 78 5 6 9 </code></pre>

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