Question

Language C++

Most people know that the average human body temperature is 98.6 Fahrenheit (F). However, body temperatures can reach extreme levels, at which point the person will likely become unconscious (or worse). Those extremes are at or below 86 F and at or above 106 F.

Write a program that asks the user for a body temperature in Fahrenheit (decimals are ok). Check if that temperature is in the danger zone (for unconsciousness) or not and produce the relevant output shown below. Also check if the user entered a number greater than zero. If they didn't, display an error message and don't process the rest of this program.

If the entry was valid, convert the temperature from Fahrenheit to Celsius. and output it to the user.

F to C formula: (temp - 32) * 5 / 9

Prompts:

Enter a body temperature in Fahrenheit: [possible user input: 107]

Possible Outputs:

This person is likely unconscious and in danger
Temperature in Celsius is: 41.6667

This person is likely conscious
Temperature in Celsius is: 37

Invalid entry

Notes and Hints:

1) This exercise is testing your knowledge of Flags and Logical Operators. Use both!

2) Do not use constants for the numbers in the F to C formula. Write it as-is.

3) Hint: The order in which you do your decision/conditional statements makes all the difference

4) Remember: Do not let this program do any math if the user's entry is invalid!

Answer 1

C++ code:

#include <iostream>
using namespace std;
int main(){
    //initializing Celsius and Fahrenheit temperature
    double c,f;
    //asking for Fahrenheit temperature
    cout<<"Enter a body temperature in Fahrenheit: ";
    //accepting it
    cin>>f;
    //initializing flag as False
    bool flag=true;
    //checking if temperature is less than or equal to 0
    if(f<=0){
        //setting flag as false
        flag=false;
    }
    //checking if flag is true
    if(flag){
        //checking if Temperature is less than or equal to 86 or greater than or equal to 106
        if(f<=86 || f>=106)
            //printing unconscious and in danger
            cout<<"This person is likely unconscious and in danger"<<endl;
        else
        //printing conscious
            cout<<"This person is likely conscious"<<endl;
        //finding Celsius Temperature
        c=(f-32)*5.0/9.0;
        //printing it
        cout<<"Temperature in Celsius is: "<<c<<endl;
    }
    else
    //printint Invalid entry
        cout<<"Invalid entry"<<endl;
    return 0;
}

Screenshot:

Input and Output: