Answer Posted / ss

Week5


using namespace std;

enum Planet {MERCURY, VENUS, EARTH, MARS,JUPITER,
SATURN, URANUS,NEPTUNE,
PLUTO};

string tolowerstr(string str);
Planet StrToPlanet(string str);
string PlanetToStr(Planet planet);
void readData(double&, Planet&);
double PlanetWeight(double, Planet);




int main()
{//for (Planet p=MERCURY; p<=PLUTO; p=Planet(p+1))
//cout<<PlanetToStr(p)<<endl;
Planet planet;
double weight;
char answer;
do{

cout<<"Enter your weight? "; cin>>w;
cout<<"Enter a planet name? ";cin>>str;
cout<<"Your weight on ";
<<" is "<<PlanetWeight(weight,
planet)<<" kg."<<endl;

cout<<"Press letter s to stop? ";
cin>>answer;

}while (answer!='s' && answer!='S');

return 0;

}//main




Planet StrToPlanet(string str)
{//converts the string str value to its corresponding
Planets value
string cstr=tolowerstr(str); //converts user typed planet
name into lowercase form
if (cstr=="mars")
return MARS;
else if (cstr=="mercury")
return MERCURY;
else if (cstr=="venus")
return VENUS;
else if (cstr=="jupiter")
return JUPITER;
else if (cstr=="neptone")
return NEPTUNE;
else if (cstr=="saturn")
return SATURN;
else if (cstr=="pluto")
return PLUTO;
else
{
if (cstr!="earth")
cout<<"Invalid planet name.\n";
return EARTH;}}//ConvertToPlanets

string tolowerstr(string str)
{



//converts every character in the string str to lowercase
form
for(int i=0; i!=str.length(); i++)
str[i]=tolower(str[i]);

return str;





}







string PlanetToStr(Planet planet)
{
switch (planet)
{
case EARTH: return "Earth";
case JUPITER: return "Jupiter";
case VENUS: return "Venus";
case MARS: return "Mars";
case MERCURY: return "Mercury";
case SATURN: return "Saturn";
case NEPTUNE: return "Neptune";
case PLUTO: return "Pluto";
case URANUS: return "Uranus";
default: return "Error";

}//switch

}//PlanetToStr
double PlanetWeight(double earthweight, Planet p)
{
switch(p)
{
case JUPITER: return 2.5374*earthweight;
case VENUS: return earthweight* 0.8975;
case MARS: return earthweight*0.3507;
case MERCURY: return earthweight*0.4155;
case SATURN: return earthweight*1.0677;
case NEPTUNE: return earthweight*1.1794;
case PLUTO: return earthweight*0.0899;
case URANUS: return earthweight*0.8947;
default: return earthweight;
}//switch
}//PlanetWeight
void readData(double &w, Planet &p){
string str;
cout<<"Enter your weight? "; cin>>w;
cout<<"Enter a planet name? ";cin>>str;
p=StrToPlanet(str);
}

In which header file is the null macro defined?

847

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List some of the static data structures in C?

757

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Mention four important string handling functions in c languages .

617

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660

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Explain what will be the outcome of the following conditional statement if the value of variable s is 10?

738

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Explain what are the different file extensions involved when programming in c?

629

---

which type of aspect you want from the student.

1697

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Explain what does the format %10.2 mean when included in a printf statement?

769

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803

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738

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An organised method of depicting the use of an area of computer memory used to signify the uses for different parts of the memory a) swap b) extended memory c) memory map d) all of the above

701

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How do c compilers work?

602

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7-Given an index k, return the kth row of the Pascal's triangle. For example, when k = 3, the row is [1,3,3,1]. For reference look at the following standard pascal’s triangle.

2215

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what is the format specifier for printing a pointer value?

609

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What is the purpose of realloc()?

663

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