Question

C++

Guessing game. Create a project titled Lab4_Guess with a single file titled guess.cpp Program the following game. The computer selects a random number between 1 and 100 and asks the user to guess the number. If the user guesses incorrectly, the computer advises to try larger or smaller number. The guessing repeats until the user guesses the number. The dialog should look as follows (user input is shown in bold): Guess a number between 1 and 100: 50 try larger: 75 try smaller: 68 try larger: 71 you got it! For your program, you need to use predefined randomization functions rand() and srand() as well as the time function time() Function time() returns current time (as kept by the computer) in the number of seconds passed since midnight, January 1, 1970. You need to include ctime to use this function. The function takes one argument but for this assignment the argument value is a special named constant nullptr. Check this program for an example usage. To use functions rand() and srand() you need to include cstdlib Function srand() initializes the random number generator of the program. It takes a single integer argument. The value passed to srand() determines the values output by rand(). This value is called seed. rand() takes no arguments. Every time rand() is invoked it returns an integer value between 0 and constant RAND_MAX defined in cstdlib. Note that the sequence of values returned by repeated calls of rand() is uniquely determined by the seed passed to srand(). That is, if srand() is passed the same seed, rand() is going to return the same sequence of numbers. This is helpful for debugging. Check this program for an example of random number manipulation. Hints: Use fixed values of the seed for your initial debugging, use the output of time() as an unpredictable seed to start the guessing game once you debugged your program. Note that random value produced by rand() is out of the required range of 1-100. To get the random number into the required range, remainder it by 100 (that puts the number in 0-99 range) and then add one. Do not put srand() inside the loop or anywhere, where it may be invoked more than once - it resets the random number generator.

Answer 1

Here's the code for the guessing game. Appropriate comments are written in the code itself. You can consider changing the seed value, if you want to try something else.

Screenshot of the code

Text version of the code

//include all the required libraries
#include <ctime>
#include <cstdlib>
#include <iostream>
// using std namespace
using namespace std;

// Logic
int main()
{
   // num is random number
   // guess is user input
   int num, guess;
   srand(time(0)); // seed random number generator
   // Modul to make number between 1 and 100
   num = rand() % 100 + 1;
   cout << "Guessing game ";

   // Game Logic
   do
   {
       cout << "Guess a number between 1 and 100: ";
       cin >> guess;
       if (guess > num)
           cout << "Try smaller ";
       else if (guess < num)
           cout << "Try Larger ";
       else
           cout << "You got it!";
   } while (guess != num);
   // Hold the screen after finishing the game
   cin.ignore();
   cin.get();
   return 0;
}

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