Lab #1 - C++ Basics (Loops, Functions, Arrays)
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A software company sells a package that retails for $99. Quantity discounts are given according to the following table.
Quantity Discount 10-19 20% 20-49 30% 50-99 40% 100 or more 50% Write a program that asks for the number of units sold and computes the total cost of the purchase. Declare the discount as constants.Input Validation: Make sure the number of units is greater than 0.
#include <iostream> int main(int argc, char const *argv[]) { int qty; // std::cout << "Enter no of units sold: "; while (std::cin >> qty) { if (qty > 0) break; std::cout << "No of units should be greater than 0" << std::endl; // std::cout << "Enter no of units sold: "; } double dis = 0; if (qty < 20) dis = 0.2; else if (qty < 50) dis = 0.3; else if (qty < 100) dis = 0.4; else dis = 0.5; double price = qty * 99 * (1 - dis); printf("\nTotal price is: %.2lf\n", price); return 0; } -
Write a program that generates the day's sales report for five stores. The program asks for the sales figures as input anddisplays a bar graph comparing each store's sales.Create each bar in the bar graph by displaying a row of asterisks. Each asterisk represents $100 of sales.Here is an example of the program's output.
Date: July 22, 2019 Name of Sales Manager: Tutu Pal CityCentre: ********** Park Street: ************ Rajarhat: ****************** South City: ******** Dum Dum: ******************* The store with the top sales on July 22, 2019 is Dum Dum. The total sales is $xxxx.Use the function void printbar(string store, int sales) to generate the bar chart.
#include <iostream> void printbar(std::string store, double sales, double sales_max) { std::cout << store << ": \t"; for (int j = 0; j < int(sales * 50.0 / sales_max); j++) { std::cout << "*"; } std::cout << std::endl; } int main(int argc, char const *argv[]) { std::string date = "July 22, 2019", manager = "Tutu Pal"; std::string store_names[5] = {"City Centre", "Park Street", "Rajarhat", "South City", "Dum Dum"}; double store_sales[5], total_sales = 0; int max = 0; for (int i = 0; i < 5; i++) { // std::cout << "Enter sales for store " << i + 1 << ": "; std::cin >> store_sales[i]; total_sales += store_sales[i]; if (store_sales[max] < store_sales[i]) max = i; } std::cout << "\nDate:\t" << date << "\nName of Sales Manager:\t" << manager << std::endl; for (int i = 0; i < 5; i++) { printbar(store_names[i], store_sales[i], store_sales[max]); } std::cout << "\nThe store with the top sales on " << date << " is " << store_names[max] << std::endl; printf("\nThe total sales is $%.2lf.\n\n", total_sales); return 0; } -
Write a C++ program to implement the Number Guessing Game. In this game the computer chooses a random number between 1 and 100, and the player tries to guess the number in as few attempts as possible. Each time the player enters a guess, the computer tells him whether the guess is too high, too low, or right. Once the player guesses the number, the game is over.
#include <iostream> int main(int argc, char const *argv[]) { std::cout << "======NUMBER GUESSING GAME=======" << std::endl; int guess, number = rand() % 200 + 1; std::cout << "Guess a number between 1 and 200" << std::endl; std::cin >> guess; while (guess != number) { if (guess > number) { std::cout << "Your guess is too high!!" << std::endl; } else { std::cout << "Your guess is too low!!" << std::endl; } std::cin >> guess; } std::cout << "You guessed the number " << number << std::endl; return 0; }
