From 6d6aa263ae3b0d4bf3bea2aaf22f7a8275170932 Mon Sep 17 00:00:00 2001
From: Jesus Hilario Hernandez <jesushilariohernandez@gmail.com>
Date: Mon, 9 Dec 2019 10:55:20 -0600
Subject: [PATCH] added

---
 .../Programming Challenges/021.cpp            | 60 +++++++++++++++----
 1 file changed, 50 insertions(+), 10 deletions(-)

diff --git a/Chapter-5-Loops-and-Files/Review Questions and Exercises/Programming Challenges/021.cpp b/Chapter-5-Loops-and-Files/Review Questions and Exercises/Programming Challenges/021.cpp
index c1a928d..35e80c3 100644
--- a/Chapter-5-Loops-and-Files/Review Questions and Exercises/Programming Challenges/021.cpp	
+++ b/Chapter-5-Loops-and-Files/Review Questions and Exercises/Programming Challenges/021.cpp	
@@ -1,17 +1,15 @@
 /********************************************************************
 *
-*	  020. RANDOM NUMBER GUESSING GAME
-*
-*       Write a program that generates a random number and
-*       asks the user to guess what the number is. If the user’s
-*       guess is higher than the random number, the program should
-*       display “Too high, try again.” If the user’s guess is lower
-*       than the random number, the program should display “Too
-*       low, try again.” The program should use a loop that repeats
-*       until the user correctly guesses the random number.
+*	  021. Random Number Guessing Game Enhancement
+*       
+*       Enhance the program that you wrote for Programming 
+*       Challenge 20 so it keeps a count of the number of guesses 
+*       that the user makes. When the user correctly guesses the 
+*       random number, the program should display the number of 
+*       guesses.
 *
 * 	Jesus Hilario Hernandez
-* 	July 19th 2018
+* 	December 9th 2019
 *
 ********************************************************************/
 #include <iostream>
@@ -21,6 +19,48 @@
 using namespace std;
 int main()
 {
+    const int MIN_VALUE = 1,
+              MAX_VALUE = 10;
+
+    int random_num,
+        user_num;
+
+    unsigned seed = time(0);
+
+    srand(seed);
+
+
+    random_num = (rand() % (MAX_VALUE - MIN_VALUE + 1)) + MIN_VALUE;
+    cout << "Random number is: " << random_num << endl;
+    cout << endl;
+
+    cout << "Guess a number between 1 and 10." << endl;
+    while(!(cin >> user_num))
+    {
+        cout << "Error! A number must be entered: ";
+        cin.clear();
+        cin.ignore(123, '\n');
+    }
+    while(user_num != random_num)
+    {
+        if (user_num < random_num)
+            cout << "Your number is lower." << endl;
+        else
+            cout << "Your number is higher." << endl;
+        cout << "Try again: ";
+
+        while(!(cin >> user_num))
+        {
+            cout << "Error! A number must be entered: ";
+            cin.clear();
+            cin.ignore(123, '\n');
+        }
+    }
+
+    cout << "\nCorrect! " << endl;
+    cout << "Random number = " << random_num << endl;
+    cout << "Your guess    = " << user_num   << endl;
+    cout << endl;
 
     return 0;
 }