LeetCode - Algorithms - 1507. Reformat Date

Problem

1507. Reformat Date

Dart

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class Solution {
  String reformatDate(String date) {
      final DD = const {
          "1st":"01", "2nd":"02", "3rd":"03", "4th":"04", 
          "5th":"05", "6th":"06", "7th":"07", "8th":"08",
          "9th":"09", "10th":"10", "11th":"11", "12th":"12",
          "13th":"13", "14th":"14", "15th":"15", "16th":"16",
          "17th":"17", "18th":"18", "19th":"19", "20th":"20",
          "21st":"21", "22nd":"22", "23rd":"23", "24th":"24",
          "25th":"25", "26th":"26", "27th":"27", "28th":"28",
          "29th":"29", "30th":"30", "31st":"31"};
    final MM = const {"Jan":"01", "Feb":"02", "Mar":"03", 
    "Apr":"04", "May":"05", "Jun":"06", "Jul":"07", "Aug":"08",
    "Sep":"09", "Oct":"10", "Nov":"11", "Dec":"12"};
    List<String> list = date.split(" ");
    String month = list[1];
    String day = list[0];
    String ymd = list[2] + "-" + (MM[month]??'MM') + "-" + (DD[day]??'00');
    return ymd;
  }
}

Submission Detail

  • Accepted
  • Runtime 498 ms, Beats 33.33%
  • Memory 140.2 MB, Beats 100%

Swift

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class Solution {
    func reformatDate(_ date: String) -> String {
        let month = ["Jan":"01", "Feb":"02", "Mar":"03",
                    "Apr":"04", "May":"05", "Jun":"06",
                    "Jul":"07", "Aug":"08", "Sep":"09",
                    "Oct":"10", "Nov":"11", "Dec":"12"]
        let dayOfMonth = ["1st":"01", "2nd":"02", "3rd":"03", "4th":"04",
                        "5th":"05", "6th":"06", "7th":"07", "8th":"08",
                        "9th":"09", "10th":"10", "11th":"11", "12th":"12",
                        "13th":"13", "14th":"14", "15th":"15", "16th":"16",
                        "17th":"17", "18th":"18", "19th":"19", "20th":"20",
                        "21st":"21", "22nd":"22", "23rd":"23", "24th":"24",
                        "25th":"25", "26th":"26", "27th":"27", "28th":"28",
                        "29th":"29", "30th":"30", "31st":"31"]
        var ymdList = date.components(separatedBy: " ")
        var yyyy : String? = ymdList[2]
        var mm : String? = month[ymdList[1]]
        var dd : String? = dayOfMonth[ymdList[0]]
        var ymd : String? = (yyyy ?? "") + "-" + (mm ?? "") + "-" + (dd ?? "")
        return ymd ?? ""  
    }
}

Submission Detail

  • Accepted
  • Runtime 0 ms, Beats 100%
  • Memory 14.9 MB, Beats 50%