Assignment 1

Screening-Assignment/.gitignore

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+a.exe
+assign_1.exe

Screening-Assignment/assign_1.cpp

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+//arsalansaad.iitkgp@gmail.com
+
+#include <iostream>
+#include <time.h>
+#include <fstream>
+#include <vector>
+#include <ctime>
+#include <chrono>
+#include <cstdlib>
+#include <algorithm>
+
+using namespace std;
+using namespace std::chrono;
+
+vector<int> random_nos(int no_of_lines)
+{
+	vector<int> rand_indices;
+
+	srand(time(0));
+	for(int i = 0; i<5; i++)
+		rand_indices.push_back(rand()%no_of_lines);
+
+	return rand_indices;
+}
+
+vector<string> random_lines(string filepath)
+{
+	ifstream infiles(filepath);
+
+	int no_of_lines = 0;
+	string line;
+
+	while(getline(infiles,line))
+		++no_of_lines;
+
+	vector<int> indices = random_nos(no_of_lines);	
+	vector<string> rand_lines;
+	int i = 0;
+
+	ifstream infile(filepath);	
+	while (getline(infile,line))
+	{
+		if(find(indices.begin(), indices.end(), i) != indices.end())
+			rand_lines.push_back(line);
+		i++;
+	}
+
+	return rand_lines;
+}
+
+int main()
+{
+	vector<string> lines;
+	int total_char = 0;
+	int total_time = 0;
+	string filepath = "shakespeare.txt";
+
+	lines = random_lines(filepath);
+
+	cout << "!!!Welcome to Typing Speed Calculator!!!!\n" << endl;
+
+	for(int i = 0;i < lines.size();i++)
+	{	
+		string text;
+		cout << lines[i] << endl;
+		cout << "Please type in the above line:" << endl;
+		auto begin = chrono::high_resolution_clock::now();
+
+    	getline(cin, text);
+
+    	auto end = chrono::high_resolution_clock::now();
+    	auto elapsed = chrono::duration_cast<chrono::seconds>(end - begin);
+
+    	int interval = int(elapsed.count());
+
+    	if(text.length() == 0)
+    	{
+    		cout << "\nYou didn't type anything." << endl;
+    		continue;
+		}
+    	else
+    	{
+
+    		cout << "\n" << i+1 << ". " << "Characters typed: " << text.size() << endl;
+    		cout << "Time taken: " << interval << " seconds." << endl;
+    		cout << "Typing speed: " << float(text.length()*60)/interval << " characters per minute.\n" << endl;
+    		total_char += text.length();
+    		total_time += interval;
+		} 
+	}
+
+	cout << "\nAverage typing speed: " << float(total_char*60)/total_time << " characters per minute." << endl;	
+
+	return 0;
+}