算法

百钱百鸡算法：

 private void Sell(ref int one, ref int two, ref int three)
        {
          
            int a = 0, b = 0, c = 0, p = 0;
            for (a = 1; a <=19; a++)
            {
                for (b = 1; b <=33; b++)
                {
                    c = 100 - a - b;
                    Math.DivRem(c, 3, out p);
                    if((5*a+3*b+c/3)==100&&p==0)
                    {
                        one = a;
                        two = b;
                        three = c;
                    }
                }
            }
        }

韩信点兵

  private int DianBing()
        {
            int a = 0, b = 0, c = 0, p = 0;
            for (int i = 0; i < 100; i++)
            {
                Math.DivRem(i, 3, out a);
                Math.DivRem(i, 7, out b);
                Math.DivRem(i, 5, out c);
                if(a==1&&b==5&&c==0)
                {
                    p = i;
                }
            }
            return p;
        }