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  1. #include <cmath>
  2. #include <cstdlib>
  3. #include <ctime>
  4. #include <iostream>
  5. #include <limits>
  6.  
  7. int roll(int mini, int maxi)
  8. {
  9.     int v = maxi - mini;
  10.     int x  = mini + (rand() % (v+1));
  11.     return x;
  12.  
  13. }
  14.  
  15. void flush_stream(std::istream& stream)
  16. {
  17.     stream.clear();
  18.     stream.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
  19. }
  20.  
  21. int get_valid_number(const std::string& prompt)
  22. {
  23.     int number = 0;
  24.  
  25.     bool valid = false;
  26.     while (!valid)
  27.     {
  28.         std::cout << prompt << std::endl;
  29.         if (std::cin >> number)
  30.         {
  31.             valid = true;
  32.         }
  33.         flush_stream(std::cin);
  34.     }
  35.  
  36.     return number;
  37. }
  38.  
  39. void caller()
  40. {
  41.     const int a = get_valid_number("Enter minimum number");
  42.     int b = std::numeric_limits<int>::min();
  43.     do
  44.     {
  45.         b = get_valid_number("Enter maximum number");
  46.     }
  47.     while (b <= a);
  48.     const int c = get_valid_number("How many rolls?");
  49.  
  50.     for (int i = 0; i < c; ++i)
  51.     {
  52.         std::cout << roll(a, b) << std::endl;
  53.     }
  54. }
  55.  
  56. int main()
  57. {
  58.     srand(time(NULL));
  59.     caller();
  60. }
  61.  
Success #stdin #stdout 0s 2904KB
comments (?)
stdin
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1
6
10
stdout
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Enter minimum number
Enter maximum number
How many rolls?
1
1
1
2
4
5
1
4
3
1
https://ideone.com/R7EzgY
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
secret

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