Enhance your problem-solving skills for coding test preparation.<\/p>\n<\/header>\n \n Write a function that takes a given integer N and returns a new integer formed by sorting its digits in descending order.\n <\/p>\n \n N = 118372\n <\/p>\n \n 873211\n <\/p>\n<\/section>\n \n The following steps are needed to solve this problem.\n <\/p>\n \n Below is the C# code to solve the given problem.\n <\/p>\n \n I will explain each step used in the above code.\n <\/p>\n \n \n \n Finally, \n The time complexity of this algorithm is O(d log d), where d is the number of digits in the input integer. The time taken to sort the digits is O(d log d), while other operations take O(d).\n <\/p>\n<\/section>\n \n In this course, we learned how to sort a given integer in descending order. We effectively solved this problem using basic array manipulation and string conversion in C#. Although it is a fundamental algorithm problem, it can evolve into various application problems, so practicing more problems is essential.\n <\/p>\n<\/section>\nProblem Description<\/h2>\n
Input Conditions<\/h3>\n
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Output Conditions<\/h3>\n
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Example<\/h2>\n
Input Example<\/h3>\n
Output Example<\/h3>\n
Approach to the Problem<\/h2>\n
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C# Code Implementation<\/h2>\n
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\n using System;\n using System.Linq;\n\n public class Program\n {\n public static void Main(string[] args)\n {\n int N = 118372;\n Console.WriteLine(SortDigitsDescending(N));\n }\n\n public static int SortDigitsDescending(int n)\n {\n \/\/ Convert the integer to a string\n var digits = n.ToString().ToCharArray();\n\n \/\/ Sort the string in descending order\n Array.Sort(digits);\n Array.Reverse(digits);\n\n \/\/ Convert the sorted string back to an integer\n return int.Parse(new string(digits));\n }\n }\n <\/code>\n <\/pre>\n<\/section>\nCode Explanation<\/h2>\n
1. Convert the integer to a string<\/h3>\n
n.ToString().ToCharArray()<\/code> is used to convert the integer to a string. Then, using the ToCharArray()<\/code> method, each digit is converted to a character array.\n <\/p>\n2. Sort the digits<\/h3>\n
Array.Sort(digits)<\/code> is called to sort the digits in ascending order. Then, Array.Reverse(digits)<\/code> is called to change it to descending order.\n <\/p>\n3. Convert to an integer<\/h3>\n
new string(digits)<\/code> converts the character array to a string, and int.Parse<\/code> is used to convert it to an integer.\n <\/p>\n<\/section>\nTime Complexity<\/h2>\n
Conclusion<\/h2>\n