[Solved] data type of a and b in map a,b [closed]

[ad_1] You are wrong about the internals of std::map – it uses a data structure with O(log n) insertion, query and delete times. IIRC, it’s a red-black tree. To answer your question, the objects stored are of type map<int,int>::value_type which is std::pair<const int, int>. Here’s the ref. [ad_2] solved data type of a and b … Read more

[Solved] Euler Project – Greatest prime factor computational power can’t handle my script [closed]

[ad_1] Following up on my suggestion in a comment – re-work your algorithm to reduce the amount of number crunching: #include <iostream> #include <math.h> int main() { const long long int num_in = 600851475143; long long int curr = num_in; while(true){ const long long int sr = static_cast<long long int>(sqrt(static_cast<long double>(curr))); long long int i … Read more

[Solved] How to re-write this linq from query syntax to method syntax? [closed]

[ad_1] You could try something like this: recordsEpP.Where(row=> !string.IsNullOrEmpty(row.Column20) && !string.IsNullOrEmpty(row.Column14) && string.IsNullOrEmpty(row.Column8) ).Select(row => new ReportDto{ Status = “P”, ContractNumber = row.ContractNumber, Count = 1 }).ToList(); 0 [ad_2] solved How to re-write this linq from query syntax to method syntax? [closed]

[Solved] Plotting points using Nested For Loops

[ad_1] The solution is exactly as ‘@Lightness Races in Orbit’ just explained to you. Let me add that if the requirement is just print out what you showed us, then no need for the last ‘*’ nor the ‘cin.get()’: for (int x = 0; x <= n; ++x) { for (int y = 0; y … Read more

[Solved] Simple counting program issue

[ad_1] You need to #include <stdio.h> to fix the problem with printf() and scanf(). You have #include <stdlib.h> twice. Also, you should change: void testCount (); to: void testCount (int x); as suggested by @ Keine Lust. And please don’t forget to pass a value to your newly minted testCount() function! 3 [ad_2] solved Simple … Read more

[Solved] Remove all symbols different from numbers and letters in string [duplicate]

[ad_1] This should work: var result = new Regex(“[^a-zA-Z0-9 ]”).Replace(address, string.Empty); This keeps only whatever in a-Z, A-Z or 0-9 or white space You can also use linq: var result2 = new String(address.Where(x => char.IsLetterOrDigit(x) || char.IsWhiteSpace(x)).ToArray()); 4 [ad_2] solved Remove all symbols different from numbers and letters in string [duplicate]

[Solved] Getting the substring after a character in C# using regex

[ad_1] In C#, use Substring() with IndexOf: string val = val.Substring(val.IndexOf(‘]’) + 1); If you have multiple ] symbols, and you want to get all the string after the last one, use LastIndexOf: string val = “[01/02/70]\nhello [01/02/80] world “; string val = val.Substring(val.LastIndexOf(‘]’) + 1); // => ” world ” If you are a … Read more

[Solved] How to calculate sum of items in a List using C#

[ad_1] Give this a try. I assume you’re using a 2D table and not a jagged table. // Assuming a 2D table and not jagged List<List<string>> table = new List<List<string>> { new List<string> { “1”, “2”, “3” }, new List<string> { “1”, “2”, “3” }, new List<string> { “1”, “2”, “3” }, new List<string> { … Read more