WebMay 23, 2024 · finding closest value in an array. int [] array = new int [5] {5,7,8,15,20}; int TargetNumber = 13; For a target number, I want to find the closest number in an array. For example, when the target number is 13, the closest number to it in the array above is 15. WebMay 4, 2012 · public static List FindAllIndexOf (List values, List matches) { // Initialize list List index = new List (); // For each value in matches get the index and add to the list with indexes foreach (var match in matches) { // Find matches index.AddRange (values.Select ( (b, i) => Equals (b, match) ? i : -1).Where (i => i != -1).ToList ()); } return …
c# - Obtain the index of the maximum element - Stack Overflow
WebFeb 14, 2014 · var searchInList = new List (); //Populate your list string stringToLookUp= "Hello world"; var foundHelloWorldIndexes = new List (); for (int i = 0; i < searchInList.Count; i++) if (searchInList [i].Equals (stringToLookUp)) foundHelloWorldIndexes.Add (i); Share Improve this answer Follow answered Jun 28, … WebAug 29, 2024 · You didn't seem to really understand the code in the linked question, so I'll try to explain. The approach with Enumerable.Range creates a sequence of numbers from 0 (the first index of myList) to myList.Count - 1 (the last index of myList), and then you use Where to filter these indices, based on a condition.. So really, the lambda parameter kvp … natural hair shampoo for dry hair
[Solved] c# - How to find index of list in the list - CodeProject
WebJan 29, 2016 · List.FindAll Method (Predicate) (System.Collections.Generic); see also other System.Collections.Generic.List<>.Find* methods: List Class (System.Collections.Generic). Of course, your can also explicitly traverse all the elements in a foreach or for loop until you find what you need to. Alternatively, you can use LINQ: WebOct 19, 2016 · list.Where (i => i.Property == value).FirstOrDefault (); // C# 3.0+ Using List.Find: list.Find (i => i.Property == value); // C# 3.0+ list.Find (delegate (Item i) { return i.Property == value; }); // C# 2.0+ Both of these options return default (T) ( null for reference types) if no match is found. WebBoth List.IndexOf() and List.FindIndex() methods can be used to find the index of the first occurrence of a specified item in a List in C#. However, the efficiency of these methods can differ depending on the size of the list and the complexity of the search criteria. List.IndexOf() method has a time complexity of O(n), where n is the number … maria tobon md