Question

Hi, I want to programm a c++ gamr without the using of any array. only by using FUNCTIONS, WHILE LOOPS, FOR LOOPS, IF ELSE, SRADN() and RAND(), BREAK STATEMENT, CIN and COUT. Please help me out.

Answer 1

• Below is the detailed implementation of the above problem in C++ with code and output shown.
• For better understanding please read the comments mentioned in the code.
• The basic idea of the game mentioned below is that player is asked for a range to enter [a, b] then user is prompted to guess a number between the range which computer has generated randomly if player guesses the same number he/she wins otherwise loses.And beside this all the conditions are checked like if player enters invalid range or if player wants to quit the game then also an option is provided.
• So using Function, while/for loops, if/else, rand() and srand(), break cin, cout this game is designed in a simple manner, for details refer below.
• CODE:

//include headers
#include <iostream>
#include <cstdlib>
#include <ctime>
using namespace std;
//function to generate a random number between given range [a,b]
int rand_int(int a,int b){
//using rand()
int num = (rand()%(b - a + 1)) + a;
return num;
}
//driver function
int main(){
//welcome message
cout<<"Welcome to the game of random numbers\n\n";
//seeding to current time so as to generate a different random number every time
srand(time(NULL));
//Play till player quits the game
while(true){
//ask user to enter a range or to quit
cout<<"Please input a range i.e, [a,b] such that a<=b (or enter both a and b as -1 to quit)\n";
//input range [a, b]
cout<<"Enter a: ";
int a;
cin>>a;
cout<<"Enter b: ";
int b;
cin>>b;
//if user wants to quit then break from loop
if(a==-1 && b==-1){
cout<<"Quitting game!\n";
break;
}
//if range is valid
if(a<=b){
//generate a random number between [a, b]
int num=rand_int(a,b);
//ask player to guess the number between range [a, b]
cout<<"Now guess a number between your provided range(if you guessed the number generated by computer randomly then you win otherwise you lose the game): ";
int input;
//input number form player
cin>>input;
//if guessed number equals random number then player wins.
if(input==num){
cout<<"Yay! you won!\n";
}
//otherwise loses.
else{
cout<<"Oops! You lose!\n";
}
}
//if range invalid then print invalid message and continue
else{
cout<<"Invalid range entered!\n";
}
}
return 0;
}

• INPUT/OUTPUT:

Welcome to the game of random numbers

Please input a range i.e, [a,b] such that a<=b (or enter both a and b as -1 to quit)
Enter a: 1
Enter b: 5
Now guess a number between your provided range(if you guessed the number generated by computer randomly then you win otherwise you lose the game): 2
Oops! You lose!
Please input a range i.e, [a,b] such that a<=b (or enter both a and b as -1 to quit)
Enter a: 1
Enter b: 5
Now guess a number between your provided range(if you guessed the number generated by computer randomly then you win otherwise you lose the game): 5
Oops! You lose!
Please input a range i.e, [a,b] such that a<=b (or enter both a and b as -1 to quit)
Enter a: 1
Enter b: 5
Now guess a number between your provided range(if you guessed the number generated by computer randomly then you win otherwise you lose the game): 2
Oops! You lose!
Please input a range i.e, [a,b] such that a<=b (or enter both a and b as -1 to quit)
Enter a: 1
Enter b: 5
Now guess a number between your provided range(if you guessed the number generated by computer randomly then you win otherwise you lose the game): 3
Oops! You lose!
Please input a range i.e, [a,b] such that a<=b (or enter both a and b as -1 to quit)
Enter a: 1
Enter b: 5
Now guess a number between your provided range(if you guessed the number generated by computer randomly then you win otherwise you lose the game): 2
Oops! You lose!
Please input a range i.e, [a,b] such that a<=b (or enter both a and b as -1 to quit)
Enter a: 1
Enter b: 5
Now guess a number between your provided range(if you guessed the number generated by computer randomly then you win otherwise you lose the game): 2
Yay! you won!
Please input a range i.e, [a,b] such that a<=b (or enter both a and b as -1 to quit)
Enter a: -1
Enter b: -1
Quitting game!

• Below are the screenshot attached for the code and input/output for better clarity and understanding.

CODE

INPUT/OUTPUT

So if you still have any doubt regarding this solution please feel free to ask it in the comment section below and if it is helpful then please upvote this solution, THANK YOU.