Excersices 7.13, 7.16

ch.07/DiceRolling.cpp

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+// Deitel ch.06 exercise 7.16
+// Simulating the rolling of two dice 36.000.00 times
+#include <iostream>
+#include <array>
+#include <iomanip>
+#include <random>
+
+using namespace std;
+
+default_random_engine eng{static_cast<unsigned int>(time(0))};
+uniform_int_distribution<unsigned int> randInt{1, 6};
+
+int main(){
+    array<unsigned int, 13> dice{};
+
+    unsigned int d1{0}, d2{0};
+
+    unsigned int sum{0};
+
+    for (int i{1}; i <= 36'000'000; i++){
+        d1 = randInt(eng);
+        d2 = randInt(eng);
+        sum = d1 + d2;
+
+        ++dice[sum];
+    }
+
+    cout << "The results are:" << endl;
+    for(int i{2}; i < 13; i++){
+        if(i > 9)
+            cout << i << ':' << setw(9) << dice[i] <<endl;    
+        else
+            cout << i << ':' << setw(10) << dice[i] <<endl;
+    }
+}

ch.07/dupEliminationVec.cpp

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+// Deitel ch.06 exercise 7.13
+// Duplicate elimination with array
+
+#include <iostream>
+#include <vector>
+#include <algorithm>
+
+using namespace std;
+
+bool searchVec(vector<int> &, int);
+
+int main()
+{
+    vector<int> num;
+    int tmp{0}; // To get user input and if validated add to array
+
+    cout << "Enter 20 numbers between 10 & 100:\n";
+
+    bool srch{false}; // Variable to hold search answer
+
+    for (int i{0}; i < 20; i++) // Looping the array
+    {
+        cin >> tmp;
+        while (tmp > 100 || tmp < 10) // Bounds checking
+        {
+            cout << "Out of bounds: \n";
+            cin >> tmp;
+        }
+
+        srch = searchVec(num, tmp); // Searching user input in array, true if found
+        if (srch)
+        {
+            cout << "duplicate\n";
+            continue; // If duplicate was found jump to next index
+        }
+
+        num.push_back(tmp); // If no duplicate existed add to array
+    }
+
+    sort(num.begin(), num.end());
+
+    cout << "The entered numbers are:\n";
+    for (int i{0}; i < num.size(); i++)
+    {
+        cout << num[i] << ' ';
+    }
+    cout << endl;
+}
+
+bool searchVec(vector<int> &n, int a)
+{
+    for (int i : n)
+    {
+        if (i == a)
+            return true;
+    }
+    return false;
+}