Need to count the number of documents in a particular directory using python – MapReduce

Please find the below program that I’m using. It is compiling but not giving any output. Request to help with error. import gzip import warc import os from mrjob.job import MRJob class DocumentCounter(MRJob): def mapper(self, _, line): entries = os.listdir(“C://Users//HP//WARCDataset”) for entry in entries: yield 1,1 def reducer(self, key, values): yield key, sum(values) if __name__…

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c++ Creating a function thatt will alphabetize based on the first letter

I’m trying to create a program that will alphabetize names just based on the first letter using input/output files. #include <iostream> #include <fstream> #include <string> #include <algorithm> using namespace std; const int SIZE = 50; void writeletter(string names[], int size, char letter, ostream& out); int main() { ifstream in; ofstream o; string n[SIZE]; int s=0;…

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Warning message in IAsyncEnumerable when it lacks the await operator

When calling a method like this without doing an await task, we can return the following: public Task<bool> GetBoolAsync() { return Task.FromResult(true); } What would be the equivalent for a IAsyncEnumerable<> and avoid the warning. async IAsyncEnumerable<bool> GetBoolsAsync() // <- Ugly warning { yield return true; yield break; } Warning CS1998 This async method lacks…

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