Question

Using C++

For a given electrical circuit, composed from a network ofresistors, arranged in parallel and/or series, write a program to calculate the total resistance of the circuit. To facilitate user to define the network, by giving the network circuit formula in text, a notation is used, whereand 7" operators mean series and parallel layout respectively. Please note that parallel 'operator has higher precedence than seriesoperator Table below shows a few examples of circuit diagrams and their respective circuit formulas using aforementioned notation No Circuit Formula Circuit Diagram 1 2.0/2.0+3.0/3.0 2.0Ω 3.0m Ti 2.0Ω 2 2.0+2.0/3.0+3.0 2.02 2.02 3.02 T2 3 2.0+3.0/3.0/3.0+2.0 3.0 Ω 2.0Ω 3.02 2.052 3.02 The program interacts with user using only text console. Menu such as below is presented to user at the start of the program. Please implement all functions as advertised by the menu helcome to Total Reaistance Caleulator Prog ram . Enter circuit formula Generate circuit randomly 3.Show circuit formula 4. Calculate total resistance Your choice [1-4 For example, user can enter a circuit using its formula Your choice (1-4]1 ter circuit formula: 2.0/2.0+3.0/3.0 Your choice (1-4] ircuit total resistance is 2.5 ohm KIE1004: Programming l Semester 1, 2018/2019 Or circuit can be generated randomly by computer Your choice [14] 2 circuit is generated Your choice [1-43 rcuit formula is 2.0+2.0/3.0+3.0 Your choice (1-4] 4 Circuit total resistance is 6.2 ohm For random generation of circuit, please make sure the following specifications are met. . Total number of resistors in the circuit is between 3 and 8 The circuit network layout is restricted only to the one which can be expressed by a circuit formula. The total line of codes must be less than or equal to 500 lines, and please adhere to below good programming practices Variables and functions with meaningful names (for example, not using cryptic single letter name Codes are refactored into well-defined functions. Maintain consistent code indentations throughout the program. Comments are used to describe the working of some complex codes. . . .

Answer 1

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#include <iostream>
#include <string>
#include <sstream>
#include <iomanip>

using namespace std;

double totalResistance(string);
int main()
{
    int choice;
    string formula;

    cout << "*** Welcome to Total Resistance Calculator Program ***" << endl;
    cout << "1. Enter circuit formula." << endl;
    cout << "2. Generate circuit randomly." << endl;
    cout << "3. Show circuit formula." << endl;
    cout << "4. Calculate total resistance." << endl;

    while (choice !=-1)
    {
        cout << "Your choice (1-4) : ";
        cin >> choice;
        switch(choice)
        {
            case 1:
                cout << "Enter circuit formula: ";
                cin >> formula;
                break;
            case 3:
                cout << "Circuit formula is " << formula << endl;
                break;
            case 4:
                cout << "Circuit total resistance is " << totalResistance(formula) << " ohm" << endl ;
                break;
        }
    }
}

double totalResistance (string tempFormula)
{
    double total=0;
    double value[8];
    char valueOperator[8];

    stringstream assignation(tempFormula);

    for(int i=0; i<4; i++)
    {
        assignation >> value[i];
        assignation >> valueOperator[i];
    }
                                                //need to create word counter, and randomize case
    for(int i=0; i<4; i++)
    {
        if(valueOperator[i]== '/')
        {
            total += ((value[i]*value[i+1])/(value[i]+value[i+1]));
            i++;
        }
        else if(valueOperator[i]== '+')
            total += value[i];
        else if(i==3)
            total += value[i];

    }

    return total;
}