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  1.  
  2. #include <iostream>
  3. #include <vector>
  4. #include <string>
  5. #include <iomanip>
  6. #include <numeric> // Tidak digunakan di versi ini, tapi bagus untuk sum
  7.  
  8. using namespace std;
  9.  
  10. void hitung_volume_donor_singkat() {
  11.     int N, M; // N=desa, M=golongan
  12.  
  13.     // 1. Baca N (jumlah desa) dan M (jumlah golongan)
  14.     cout << "N (desa) M (golongan): ";
  15.     if (!(cin >> N >> M)) return;
  16.  
  17.     // 2. Baca Nama Golongan
  18.     vector<string> nama_golongan(M);
  19.     cout << "Nama " << M << " golongan (cth: A B O...): ";
  20.     for (int i = 0; i < M; ++i) cin >> nama_golongan[i];
  21.  
  22.     // Total volume untuk setiap golongan darah
  23.     vector<double> total_volume(M, 0.0);
  24.  
  25.     cout << "\nInput " << N << " desa, masing-masing " << M << " volume (ml):\n";
  26.  
  27.     // 3. Loop input volume per desa
  28.     for (int d = 0; d < N; ++d) {
  29.         cout << "Desa " << d + 1 << ": ";
  30.         for (int g = 0; g < M; ++g) {
  31.             double volume;
  32.             if (cin >> volume) {
  33.                 total_volume[g] += volume;
  34.             } else {
  35.                 cerr << "Error input. Program berhenti." << endl;
  36.                 return;
  37.             }
  38.         }
  39.     }
  40.  
  41.     // 4. Output Hasil
  42.     cout << fixed << setprecision(2);
  43.     cout << "\n=== Total Volume per Golongan ===\n";
  44.     for (int g = 0; g < M; ++g) {
  45.         cout << nama_golongan[g] << ": " << total_volume[g] << " ml\n";
  46.     }
  47.     cout << "=================================\n";
  48. }
  49.  
  50. int main() {
  51.     hitung_volume_donor_singkat();
  52.     return 0;
  53. }
Success #stdin #stdout #stderr 0.01s 5288KB
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stdin
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2
2
2 4 
3 9
stdout
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N (desa) M (golongan): Nama 2 golongan (cth: A B O...): 
Input 2 desa, masing-masing 2 volume (ml):
Desa 1: Desa 2:
stderr
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Error input. Program berhenti.
https://ideone.com/1kyopU
language:
C++ (gcc 8.3)
created:
3 days ago
visibility:
public

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