Create a Program to Implement Structures in C++ Assignment Solution

Instructions

Objective

Write a program to implement structures in C++.

Requirements and Specifications

Source Code

PART 1

#include #include #include // Hold mobile phone information struct Phone { char os[255]; // Operating system like Android, iOS char make[255]; // Google, Apple, Samsung, Huawei and the like int ram; // Ram in GB double size; // Size inches like 6.5, 5.0, 5.5, and the like int battery; // Capacity of battery like 4000mah and the like }; // Create a new phone and add it to the list of phones void addPhone(struct Phone *phones, int capacity, int *numPhones) { // Stop if we ran out of space if (*numPhones >= capacity) { printf("Error: We have reached the maximum number of phones.\n"); return; } // Create the phone struct Phone phone; printf("Enter the operating system (e.g. Android, iOS): "); scanf("%s", phone.os); printf("Enter the make (e.g. Google, Apple, Samsung): "); scanf("%s", phone.make); printf("Enter the RAM in GB: "); scanf("%d", &phone.ram); printf("Enter the screen size in inches (e.g. 6.5, 5.0, 5.2): "); scanf("%lf", &phone.size); printf("Enter battery capacity in mAh: "); scanf("%d", &phone.battery); // Add the new phone phones[(*numPhones)++] = phone; printf("Ok: Phone created.\n"); } // Display the phone details void printPhone(struct Phone *phone) { printf("OS: %s\n", phone->os); printf("Make: %s\n", phone->make); printf("RAM: %d GB\n", phone->ram); printf("Screen Size: %.1lf inches\n", phone->size); printf("Battery Capacity: %d mAh\n", phone->battery); } // Search the phones that matches a screen size void searchPhonesByScreenSize(struct Phone *phones, int numPhones) { printf("Enter the screen size in inches (e.g. 6.5, 5.0, 5.2): "); double size; scanf("%lf", &size); // Find all phones that matches the screen size int numFound = 0; for (int i = 0; i < numPhones; i++) { if (phones[i].size == size) { printPhone(&phones[i]); printf("\n"); numFound++; } } printf("%d phone(s) found.\n", numFound); } // Print all phones void printPhones(struct Phone *phones, int numPhones) { for (int i = 0; i < numPhones; i++) { printPhone(&phones[i]); printf("\n"); } } // Entry point of the program int main() { printf("What is the maximum number of phones we can add? "); int capacity; scanf("%d", &capacity); // Make sure the capacity is logical if (capacity <= 0) { printf("Invalid value.\n"); return 0; } // Initialize the array struct Phone *phones = (struct Phone *) malloc(sizeof(struct Phone) * capacity); int numPhones = 0; // Display a menu while (1) { printf("Menu:\n"); printf("1. Add a new phone\n"); printf("2. Search phones by screen size\n"); printf("3. Display all phones\n"); printf("0. Exit\n"); printf("Option: "); int option; scanf("%d", &option); if (option == 1) addPhone(phones, capacity, &numPhones); else if (option == 2) searchPhonesByScreenSize(phones, numPhones); else if (option == 3) printPhones(phones, numPhones); else if (option == 0) break; printf("\n"); } // Delete the array free(phones); return 0; }

PART 2

#include #include // A cartesian coordinate stores x and y values struct CartesianCoordinate { double x; double y; }; // A polar coordinate stores a length and angle struct PolarCoordinate { double length; double angle; }; // A coordinate can store either a Cartesian or a Polar union Coordinate { struct CartesianCoordinate cartesian; struct PolarCoordinate polar; }; // Convert cartesian to polar union Coordinate convertCartesianToPolar(struct CartesianCoordinate cartesian) { struct PolarCoordinate polar; polar.length = sqrt(pow(cartesian.x, 2) + pow(cartesian.y, 2)); polar.angle = atan(cartesian.y / cartesian.x); polar.angle *= (180 / 3.14); union Coordinate coordinate; coordinate.polar = polar; return coordinate; } // Convert polar to cartesian union Coordinate convertPolarToCartesian(struct PolarCoordinate polar) { struct CartesianCoordinate cartesian; cartesian.x = polar.length * cos(polar.angle * 3.14/180); cartesian.y = polar.length * sin(polar.angle * 3.14/180); union Coordinate coordinate; coordinate.cartesian = cartesian; return coordinate; } // Entry point of the program int main() { // Let the user decide printf("Enter C if you want to enter a cartesian coordinate or P if you want to enter a polar coodinate: "); char option; scanf("%c", &option); if (option == 'C' || option == 'c') { // Create a cartesian coordinate and convert it to polar struct CartesianCoordinate cartesian; printf("Enter X: "); scanf("%lf", &cartesian.x); printf("Enter Y: "); scanf("%lf", &cartesian.y); // Convert union Coordinate coordinate = convertCartesianToPolar(cartesian); // Display the result printf("Polar Coordinate: Length = %.2f, Angle = %.2f degrees.\n", coordinate.polar.length, coordinate.polar.angle); } else if (option == 'p' || option == 'P') { // Create a polar coordinate and convert it to cartesian struct PolarCoordinate polar; printf("Enter length: "); scanf("%lf", &polar.length); printf("Enter the angle in degrees: "); scanf("%lf", &polar.angle); // Convert union Coordinate coordinate = convertPolarToCartesian(polar); printf("Cartesian Cordinate: X = %.2f,, Y = %.2f.\n", coordinate.cartesian.x, coordinate.cartesian.y); } return 0; }