dice.cpp

来自「BigC++的源码」· C++ 代码 · 共 41 行

#include <iostream>
#include <string>
#include <cstdlib>
#include <ctime>

using namespace std;

/**
   Sets the seed of the random number generator.
*/
void rand_seed()
{  
   int seed = static_cast<int>(time(0));
   srand(seed);
}

/** 
   Computes a random integer in a range.
   @param a the bottom of the range
   @param b the top of the range
   @return a random integer x, a <= x and x <= b
*/
int rand_int(int a, int b)
{  
   return a + rand() % (b - a + 1);
}

int main()
{  
   rand_seed();
   int i;
   for (i = 1; i <= 10; i++)
   {  
      int d1 = rand_int(1, 6);
      int d2 = rand_int(1, 6);
      cout << d1 << " " << d2 << "\n";
   }
   cout << "\n";
   return 0;
}