Exemplo n.º 1
0
        static void Main(string[] args)
        {
            // Fixed Window Size
            // https://www.educative.io/courses/grokking-the-coding-interview/7D5NNZWQ8Wr
            Console.WriteLine("Given an array, find the average of all contiguous subarrays of size ‘K’ in it.");
            AverageOfContiguousSubarray avg = new AverageOfContiguousSubarray();

            avg.AverageOfSubarrayOfSizeK(5, new int[] { 1, 3, 2, 6, -1, 4, 1, 8, 2 });

            // https://www.educative.io/courses/grokking-the-coding-interview/JPKr0kqLGNP
            Console.WriteLine("Given an array of positive numbers and a positive number ‘k’, find the maximum sum of any contiguous subarray of size ‘k’.");
            MaxSumOfContiguousSubArray maxSum = new MaxSumOfContiguousSubArray();

            Console.Write(maxSum.MaxSumOfSubArrayOfSizeK(3, new int[] { 2, 1, 5, 1, 3, 2 }));

            // https://leetcode.com/problems/maximum-average-subarray-i/
            Console.WriteLine("Given an array consisting of n integers, find the contiguous subarray of given length k that has the maximum average value. And you need to output the maximum average value.");
            MaxAverage maxAvg = new MaxAverage();

            maxAvg.FindMaxAverage(new int[] { 1, 12, -5, -6, 50, 3 }, 4);

            // Window size is not fixed
            // https://www.educative.io/courses/grokking-the-coding-interview/7XMlMEQPnnQ
            // https://leetcode.com/problems/minimum-size-subarray-sum/
            Console.WriteLine("Given an array of positive numbers and a positive number ‘S’, find the length of the smallest contiguous subarray whose sum is greater than or equal to" +
                              " ‘S’. Return 0, if no such subarray exists.");
            SmallestSubArray sm = new SmallestSubArray();

            Console.Write(sm.MinSizeSubArray(7, new int[] { 2, 1, 5, 2, 3, 2 }));

            // https://www.educative.io/courses/grokking-the-coding-interview/YQQwQMWLx80
            Console.WriteLine("Given a string, find the length of the longest substring in it with no more than K distinct characters.");
            LongestSubstringK ls = new LongestSubstringK();

            // https://leetcode.com/problems/longest-substring-without-repeating-characters/
            Console.WriteLine("Given a string, find the length of the longest substring in it with no more than K distinct characters.");
            LongestSubstring sub = new LongestSubstring();

            Console.Write(sub.LengthOfLongestSubstring("abcabcbb"));

            // https://leetcode.com/problems/fruit-into-baskets/
            // Substring with K distinct, K here is 2
            Console.WriteLine("Fruits into baskets");
            FruitsIntoBaskets fruits = new FruitsIntoBaskets();

            Console.Write(fruits.TotalFruit(new int[] { 1, 2, 1 }));

            Anagrams an = new Anagrams();

            string[] strs = new string[] { "eat", "tea", "tan", "ate", "nat", "bat" };
            an.GroupAnagrams(strs);
        }
Exemplo n.º 2
0
        static void Main(string[] args)
        {
            Console.WriteLine("Hello World!");

            var brute = AverageOfSubarrayOfSizeK.FindAveragesBruteForce(5, new int[] { 1, 3, 2, 6, -1, 4, 1, 8, 2 });

            foreach (var number in brute)
            {
                Console.Write($"{number} ");
            }

            Console.WriteLine();

            var window = AverageOfSubarrayOfSizeK.FindAveragesBruteForce(5, new int[] { 1, 3, 2, 6, -1, 4, 1, 8, 2 });

            foreach (var number in window)
            {
                Console.Write($"{number} ");
            }

            Console.WriteLine();

            var windowSum = SmallestSubarray.SmallestSubarrayGreaterThanS(8, new int[] { 3, 4, 1, 1, 6 });

            Console.Write($"WindowSum: {windowSum}");

            Console.WriteLine();

            var distinct = LongestSubstring.LongestSubstringWithNoMoreThanKDistinctChars("cbbbebi", 1);

            Console.WriteLine($"Longest Substring: {distinct}");


            Console.WriteLine();

            var fruits = FruitTree.MaxNoOfFruits(new char[] { 'A', 'B', 'C', 'B', 'B', 'C' });

            Console.WriteLine($"Fruits: {fruits}");

            Console.WriteLine();

            var maxNoRepeats = NoRepeatChars.NoRepeatCharsInASubstring("abccde");

            Console.WriteLine($"Max No Repeats: {maxNoRepeats}");

            Console.WriteLine();

            var longestSubstring = ReplaceToFindLongest.ReplaceKCharsToFindLongestSubString("aabccbb", 2);

            Console.WriteLine($"Replace to find longest: {longestSubstring}");

            Console.WriteLine();

            var replaceBits = BitArrayReplace.ReplaceK1sInBitArray(new List <int>()
            {
                0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1
            }, 3);

            Console.WriteLine($"Longest Replaced 0s: {replaceBits}");

            Console.WriteLine();

            var isPermutation = ContainsPermuations.DoesContainPermutation("oidbcaf", "abc");

            Console.WriteLine($"Is Permutation: {isPermutation}");

            Console.WriteLine();

            var isEducativePermutation = ContainsPermuations.EducativeVersion("oidbcaf", "abc");

            Console.WriteLine($"Is Permutation: {isEducativePermutation}");

            Console.WriteLine();

            List <List <int> > sixBySixList = new List <List <int> >()
            {
                new List <int>()
                {
                    1, 1, 1, 0, 0, 0
                },
                new List <int>()
                {
                    0, 1, 0, 0, 0, 0
                },
                new List <int>()
                {
                    1, 1, 1, 0, 0, 0
                },
                new List <int>()
                {
                    0, 9, 2, -4, -4, 0
                },
                new List <int>()
                {
                    0, 0, 0, -2, 0, 0
                },
                new List <int>()
                {
                    0, 0, -1, -2, -4, 0
                },
            };

            var largestHourGlass = HourGlass.HourglassSum(sixBySixList);

            Console.WriteLine($"Hour Glass Max: {largestHourGlass}");

            Console.WriteLine();
        }