Question

Use C++ language

1. Ask the user for their favorite number. If it isn't 10 and isn't divisible by 3, tell them they made a good choice.
2. Ask the user how many guests will be arriving, use a while loop to ensure they don't give you negative number of guests. Ask them the name of each guest and output "hello guest" with their name.

3. Ask the user to pick a number between 1 and 100. You (the program) should try and guess the number the user picked. The user can tell you if their number is higher or lower, but that is all. The program should run until the computer guesses correctly.

Answer 1

Answer 1:

#include <iostream>

using namespace std;

int main()
{
int n;
cout<<"Enter number: ";
cin>>n;
if(n!=10 && n%3!=0)
cout<<"You made a good choice: ";
return 0;
}

Answer 2:

#include <iostream>

using namespace std;

int main()
{
int n;
string str;
while(true){
cout<<"Enter how many number of guests are coming: ";
cin>>n;
if(n>0)
break;
cout<<"Number can't be negative: "<<endl;
}
for(int i=0;i<n;i++){
cout<<"Enter guest name: ";
cin>>str;
cout<<"Hello "<<str<<endl;
}
return 0;
}

Answer 3:

#include <iostream>
#include <cstdlib>
#include <ctime>
using namespace std;
int getRandom(){
   srand(time(0)); //seed random number generator
   int num = rand() % 100 + 1; // random number between 1 and 100
   return num;
}
int getNum(){
   int guess;
cout << "Enter a guess between 1 and 100 : ";
       cin >> guess;
   return guess;
}
int getRes(int g,int n){
   if(g>n)
       return 1;
   else if(g<n)
       return -1;
   else
       return 0;
}
int main()
{
   int num, guess, res = 0,ch=1;
   while(ch){
   num=getRandom();
   cout << "Guess My Number Game\n\n";
  
   do
   {
   //getting random num
       guess=getNum();
       //checking res
       res=getRes(guess,num);
       if (res > 0)
           cout << "Too high!\n\n";
       else if (res < 0)
           cout << "Too low!\n\n";
       else
           cout << "\nCorrect! You got it\n";
   } while (guess != num);
   cout<<"Press 1 to play again..0 to exit: ";
   cin>>ch;

}
   return 0;
}

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