给定一个整数，3至18，求3个骰子累加之和为这个整数，打印出这三个骰子各自显示的数

 

// 3RandomSum.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"
#include <stdlib.h>  
#include "time.h"
using namespace std;

#define myMax(x,y)  ( x>y?x:y )
#define myMin(x,y)  ( x<y?x:y )

int _tmain(int argc, _TCHAR* argv[])
{
  int iSum = 0;
  while (scanf_s("%d", &iSum))
  {
    int iMin = 1;
    int s1 = 0;
    int s2 = 0;
    int s3 = 0;
    srand(time(NULL) * 10);
    if (iSum <= 18 && iSum >= 3)
    {
      do
      {
        int iMax = myMin(6, iSum - 2);
        if (iMax > iMin)
        {
          s1 = iMin + rand() % iMax;
        }
        else
        {
          s1 = 1;
        }

        int iLeft = iSum - 2 - s1;
        iMax = myMin(6, iLeft);
        if (iMax > iMin)
        {
          s2 = iMin + rand() % iMax;
        }
        else
        {
          s2 = 1;
        }
        s3 = iSum - s1 - s2;
      } while (s1 > 6 || s2 > 6 || s3 > 6);
      printf("%d = %d + %d + %d", iSum, s1, s2, s3);
    }
    else
    {
      printf("input error,please input 3 to 18");
    }
    
  }
  return 0;
}

运行结果

3个骰子求和_#include