运动会连续开了n天，一共发了m枚奖章。第一天发1枚并留下（m-1）枚的1/
7, 其余枚数用语第二天。第二天发2枚，并照例留下1/7，以后照此办理，最后一天发完
剩下的全部奖章。程序求解运动会开的天数和共发的奖章数。（15分）
         #include <stdio.h>
         main()
           {char m, n, x, b;
         x=0;
         do {x++; [  1  ]
              n=1; b=0xff;
              while((m>n)&&b) {

                    [  2  ]
                    if(!(m%7)) m=(int)(m/7)*6;
                    else b=0;
                    n++;}
               }  while [  3  ]
              printf("n=%6dm=%8d", n, 7*x+1);
   3.摇动排序算法程序，有数组r[0], r[1], "", r[n-1],从一端开始扫描，进行
比较、交换，然后改变下一趟的扫描方向，进行同样处理。(15分)
           #define m 100
           typedef struct {
                            int key;
                            float inf;
                            } element;
           typedef element list[m];
           void shakesort(list r, int n)
                   {
           int i, l, h;
           element extr;
           l=0;
           h=n-1;
             [  1  ]
           do
              {
                for(i=1; i<h; i++)
                 if(r.key>r[i+1]. key)
                   {        
                   extr=r;
                   r=r[i+1];
                   r[i+1]=extr;
               }
             [  3  ];
          for(i=h; i>=1, i--)
           if(r.key>r[i+1].key)
           {
            extr=r;
            r=r[i+1];
            r[i+1]=extr;
             [  4  ]   
            }
         [  5  ];
        } while (1<=h);