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  1. #include <iostream>
  2. #include <vector>
  3. #include <string>
  4. #include <map>
  5.  
  6. using namespace std;
  7.  
  8. struct Pendonor {
  9.     string nama;
  10.     string desa;
  11. };
  12.  
  13. int main() {
  14.     // Contoh data pendonor
  15.     vector<Pendonor> pendonor_list = {
  16.         {"Andi", "Desa 1"},
  17.         {"Budi", "Desa 3"},
  18.         {"Citra", "Desa 1"},
  19.         {"Dedi", "Desa 3"},
  20.         {"Eka", "Desa 2"},
  21.         {"Faisal", "Desa 3"}
  22.     };
  23.  
  24.     // Map untuk menyimpan jumlah pendonor per desa
  25.     map<string, int> jumlah_pendonor_per_desa;
  26.  
  27.     // Menghitung jumlah pendonor di setiap desa
  28.     for (const auto& p : pendonor_list) {
  29.         jumlah_pendonor_per_desa[p.desa]++;
  30.     }
  31.  
  32.     // Menampilkan hasil
  33.     cout << "Jumlah pendonor darah di setiap desa:" << endl;
  34.     for (const auto& pair : jumlah_pendonor_per_desa) {
  35.         cout << "- " << pair.first << ": " << pair.second << " pendonor" << endl;
  36.     }
  37.  
  38.     return 0;
  39. }
  40.  
Success #stdin #stdout 0.01s 5316KB
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Standard input is empty
stdout
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Jumlah pendonor darah di setiap desa:
- Desa 1: 2 pendonor
- Desa 2: 1 pendonor
- Desa 3: 3 pendonor
https://ideone.com/WGEoXA
language:
C++ (gcc 8.3)
created:
8 days ago
visibility:
public

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