update

.config/Code/User/History/57b3d283/klwK.cpp

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+/*
+Rafay Ahmad
+23I-2526
+*/
+#include <iostream>
+using namespace std;
+
+class CustomerList{
+    int* customerIds;
+    int size;
+    int capacity;
+
+    void increaseCapacity(){
+        int* newArr = new int[size*2];
+        for(int j=0;j<size;j++){
+            newArr[j] = customerIds[j];
+        }
+        delete[] customerIds;
+        customerIds = newArr;
+        size *= 2;
+    }
+public:
+    CustomerList() : size(0), capacity(10){
+        customerIds = new int[capacity];
+    } 
+    ~CustomerList(){
+        delete[] customerIds;
+    }
+
+    void addCustomer(int customerId){
+        if(size >= capacity) increaseCapacity();
+        customerIds[size] = customerId;
+        size++;
+    }
+
+    int findCustomer(int customerId){
+        for(int i=0;i<size;i++){
+            if(customerIds[i] == customerId) return i;
+        }
+        return -1;
+    }
+
+    bool removeCustomer(int customerId){
+        bool removed = false;
+        for(int i=0;i<size;i++){
+            if(customerIds[i] == customerId){
+                for(int j=i;j<size-1;j++){
+                    customerIds[j] = customerIds[j+1];
+                }
+                removed = true;
+                size--;
+                break;
+            }
+        }
+        return removed;
+    }
+
+    void printList(){
+        for(int i=0;i<size;i++){
+            cout<<customerIds[i]<<endl;
+        }
+    }
+
+};
+
+int main(){
+
+    CustomerList list;
+    list.addCustomer(1);
+    list.addCustomer(2);
+    list.addCustomer(3);
+    list.addCustomer(4);
+
+    cout<<list.findCustomer(4)<<endl;
+
+    list.printList();
+    
+
+    return 0;
+}