add if/else, arrays, vectors & while/for loops

.gitignore

@@ -0,0 +1 @@
+.vscode*

array.cpp

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+#include <iostream>
+
+using namespace std;
+
+int main() {
+    string alphabets[] = {"a", "b", "c", "d"};
+
+    int primeNumbers[4];
+    
+    primeNumbers[0] = 2;
+    primeNumbers[1] = 3;
+    primeNumbers[2] = 5;
+    primeNumbers[3] = 7;
+}

if_else.cpp

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+#include <iostream>
+
+using namespace std;
+
+int main() {
+    int health;
+    int maxHealth = 100;
+
+    cout << "Input current health: ";
+    cin >> health;
+
+    if (health <= maxHealth / 4) {
+        cout << "Health low!";
+    } else if (health <= maxHealth / 2) {
+        cout << "Be careful!";
+    } else {
+        cout << "Going great!";
+    }
+}

vector.cpp

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+#include <iostream>
+#include <vector>
+
+using namespace std;
+
+int main() {
+    vector<string> inventory;
+
+    inventory.push_back("sword");
+    inventory.push_back("shield");
+    inventory.push_back("boots");
+    inventory.pop_back();
+
+    string front = inventory.front();
+    cout << "First element in inventory: " << front << "\n";
+
+    string back = inventory.back();
+    cout << "Last element in inventory: " << back << "\n";
+
+    cout << "\n";
+
+    for (int i = 0; i < inventory.size(); i++) {
+        cout << i << ": " << inventory[i] << "\n";
+    }
+}

while.cpp

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+#include <iostream>
+
+using namespace std;
+
+int main() {
+    int xPos = 0;
+    int endPos = 10;
+
+    while (true) {
+        xPos++;
+        cout << xPos << '\n';
+
+        if (xPos >= endPos) {
+            break;
+        }
+    }
+
+    cout << "Game Over! \n";
+}