using System;

using System.Collections.Generic;

​

class Program

{

    static void Main()

    {

        string partialDate = "2024/01/19"; // Replace with your partial date

        string[] dateSegments = partialDate.Split('/');

        List<string> prefixes = GeneratePrefixes(partialDate);

        foreach (var prefix in prefixes) {

            Console.WriteLine(prefix);

        }

    }

    private static List<string> GeneratePrefixes(string partialPrefix) {

        List<string> prefixes = new List<string>();

​

        string[] dateSegments = partialPrefix.Split('/');

        int year = int.Parse(dateSegments[0]);

        int? month = dateSegments.Length >= 2 ? int.Parse(dateSegments[1]) : null;

        int? day =  dateSegments.Length >= 3 ? int.Parse(dateSegments[2]) : null;

        int? hour =  dateSegments.Length >= 4 ? int.Parse(dateSegments[3]) : null;

        int? minute =  dateSegments.Length >= 5 ? int.Parse(dateSegments[4]) : null;

        if (month == null) {

            for (int mo = 1; mo <= 12; mo++) {

                var dayCount = DateTime.DaysInMonth(year, mo);

                for (int d = 1; d <= dayCount; d++) {

                    for (int h = 0; h < 24; h++) {

                        for (int mi = 0; mi < 60; mi++) {

                            string formattedPrefix = $"{year:D4}/{mo:D2}/{d:D2}/{h:D2}/{mi:D2}";

                            prefixes.Add(formattedPrefix);

                        }

                    }

                }

            }

        }

        else if (day == null) {

            var dayCount = DateTime.DaysInMonth(year, month.Value);

            for (int d = 1; d <= dayCount; d++) {

                for (int h = 0; h < 24; h++) {

                    for (int mi = 0; mi < 60; mi++) {

                        string formattedPrefix = $"{year:D4}/{month:D2}/{d:D2}/{h:D2}/{mi:D2}";

​

                        prefixes.Add(formattedPrefix);

                    }

                }

            }

        } 

        else if (hour == null) {

            for (int h = 0; h < 24; h++) {

                for (int mi = 0; mi < 60; mi++) {

                    string formattedPrefix = $"{year:D4}/{month:D2}/{day:D2}/{h:D2}/{mi:D2}";

​

                    prefixes.Add(formattedPrefix);

                }

            }

        } 

        else if (minute == null) {

            for (int mi = 0; mi < 60; mi++) {

                string formattedPrefix = $"{year:D4}/{month:D2}/{day:D2}/{hour:D2}/{mi:D2}";

​

                prefixes.Add(formattedPrefix);

            }

        } else {

            string formattedPrefix = $"{year:D4}/{month:D2}/{day:D2}/{hour:D2}/{minute:D2}";

​

            prefixes.Add(formattedPrefix);

        }

        return prefixes;

    }

}

​