72 lines
2.1 KiB
C++
72 lines
2.1 KiB
C++
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/* CSCI 200: Lab 1B (Random Classification): Tyler Beckman
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*
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* Author: Tyler Beckman
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*
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* A program to generate a random number between user inputted bounds
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* (inclusive), and classify it by quartile. In addition, more than one random
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* number in the same range can be generated if the user wishes.
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*/
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#include <chrono>
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#include <iostream>
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#include <limits>
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#include <random>
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#include <cmath>
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float input_float(std::string prompt) {
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float out;
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while (true) {
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std::cout << prompt + ": ";
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std::cin >> out;
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if (std::cin.fail()) {
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// The clear and ignore are necessary because otherwise it seems to
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// keep reusing the first input a person enters
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std::cin.clear();
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std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
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std::cout << "Invalid number, please make sure your number is formatted "
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"correctly."
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<< std::endl;
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} else {
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break;
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}
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}
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return out;
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}
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int main(void) {
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float min = input_float("Please input the minimum value"),
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max = input_float("Please input the maximum value");
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std::mt19937 mt(std::chrono::steady_clock::now().time_since_epoch().count());
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std::uniform_real_distribution<float> realDist(
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min, std::nextafter(max, std::numeric_limits<float>::max()));
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while (true) {
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float randomNumber = realDist(mt);
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std::cout << "The random value is: " << randomNumber << std::endl;
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float quartileSize = (max - min) / 4.0f;
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if (randomNumber < (min + quartileSize)) {
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std::cout << "This number is in the first quartile" << std::endl;
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} else if (randomNumber < (min + quartileSize) * 2) {
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std::cout << "This number is in the second quartile" << std::endl;
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} else if (randomNumber < (min + quartileSize) * 3) {
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std::cout << "This number is in the third quartile" << std::endl;
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} else {
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std::cout << "This number is in the fourth quartile" << std::endl;
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}
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char runAgainInput = 'N';
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std::cout << "Do you want another random value? (Y/N) ";
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std::cin >> runAgainInput;
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if (runAgainInput == 'N') {
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std::cout << "Have a nice day!" << std::endl;
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break;
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}
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}
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}
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