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  1. #include <iostream>
  2. #include <map>
  3. #include <string>
  4.  
  5. using namespace std;
  6.  
  7. map<string, int> inventory; 
  8.  
  9. void addItem(string name, int quantity) {
  10.   inventory[name] += quantity;
  11. }
  12.  
  13. void removeItem(string name, int quantity) {
  14.   inventory[name] -= quantity;
  15.   if (inventory[name] <= 0) {
  16.     inventory.erase(name); 
  17.   }
  18. }
  19.  
  20. int checkQuantity(string name) {
  21.   if (inventory.count(name) == 0) {
  22.     return 0;
  23.   }
  24.   return inventory[name];
  25. }
  26.  
  27. void displayInventory() {
  28.   cout << "Total Inventory:" << endl;
  29.   for (auto item : inventory) {
  30.     cout << item.first << ": " << item.second << endl;
  31.   }
  32. }
  33.  
  34. int main() {
  35.  
  36.   addItem("Apples", 10);
  37.   addItem("Oranges", 15);
  38.  
  39.   removeItem("Apples", 5);
  40.  
  41.   cout << "Apples: " << checkQuantity("Apples") << endl;
  42.  
  43.   displayInventory();
  44.  
  45.   return 0;
  46. }
Success #stdin #stdout 0s 5308KB
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stdin
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Standard input is empty
stdout
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Apples: 5
Total Inventory:
Apples: 5
Oranges: 15
https://ideone.com/118LFf
language:
C++ (gcc 8.3)
created:
2 years ago
visibility:
public

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