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  1. #include <iostream>
  2. #include <ctime>
  3. #include <cstdlib>
  4. #include <vector>
  5.  
  6. int main()
  7. {
  8.     std::srand(std::time(nullptr));
  9.     int number, isum;
  10.     std::cin >> number;
  11.  
  12.     // generacja liczb losowych typu int i ich sumowanie
  13.     std::vector<int> numbers(number);
  14.     isum = 0;
  15.     while(number --> 0) {
  16.       	numbers[number] = std::rand() % 1000;
  17.       	isum += numbers[number];
  18.       	std::cout << number << ": " << numbers[number] << std::endl;
  19.     }
  20.     std::cout << "isum: " << isum << std::endl;
  21.  
  22.     // zamiana liczb losowych int na double - bez reszty
  23.     int i = 0;
  24.     double sum = 0.;
  25.     double val;
  26.     for(int i = 0; i < numbers.size(); i++) {
  27.     	val = (i < numbers.size() - 1) ? ((double)numbers[i]) / isum : 1.0 - sum;
  28.     	std::cout << i << ": " << val << std::endl;
  29.     	sum += val;
  30.     }
  31.  
  32.     // wynikowa suma
  33.     std::cout << "sum: " << sum << std::endl;       
  34. }
Success #stdin #stdout 0s 4388KB
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stdin
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3
stdout
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2: 778
1: 370
0: 317
isum: 1465
0: 0.216382
1: 0.25256
2: 0.531058
sum: 1
https://ideone.com/hlRMH4
3
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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