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  1. #include <stdio.h>
  2.  
  3. int main() {
  4.     int data[100];      // penampung input
  5.     int n = 0;          // jumlah data yang benar-benar diinput
  6.     int count = 0;      // jumlah kemunculan sifat tertentu (misal angka 2)
  7.     double persentase;
  8.  
  9.     printf("Masukkan data (akhiri dengan -1):\n");
  10.  
  11.     // Membaca input sampai -1 (penanda akhir)
  12.     while (scanf("%d", &data[n]) == 1 && data[n] != -1) {
  13.         if (data[n] == 2) {
  14.             count++;
  15.         }
  16.         n++;
  17.     }
  18.  
  19.     if (n == 0) {
  20.         printf("Tidak ada data.\n");
  21.         return 0;
  22.     }
  23.  
  24.     persentase = ((double)count / n) * 100;
  25.  
  26.     printf("Persentase sifat F2: %.2f%%\n", persentase);
  27.  
  28.     return 0;
  29. }
  30.  
Success #stdin #stdout 0.01s 5292KB
comments (?)
stdin 
2 2 2 2
0 0 0 0
0 0 0 0
stdout 
Masukkan data (akhiri dengan -1):
Persentase sifat F2: 33.33%
https://ideone.com/AZgjlO
language:
C++ (gcc 8.3)
created:
5 days ago
visibility:
public

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