解析：　　题意读懂后很简单，读不懂就做不出来。读懂的秘诀：盯着图看十分钟。hartal是罢工的意思，party表示的是罢工的团体。

 1 #include <stdio.h>
 2 #include <string.h>
 3 int main()
 4 {
 5     int hartal[4000];
 6     int step, days, kase, partys, i, count;
 7     scanf("%d", &kase);
 8     while(kase--){
 9         count = 0;
10         memset(hartal,0,sizeof(hartal));
11         scanf("%d", &days);
12         scanf("%d", &partys);
13         while(partys--){
14             scanf("%d", &step);
15             i = 0;
16             while(i <= days){
17                 i+= step;
18                 if(i % 7 != 0 && i % 7 != 6)
19                     hartal[i] = 1;
20             }
21         }
22         for(i = 0; i <= days; i++)
23             if(hartal[i])
24                 count++;
25         printf("%d\n", count);
26     }
27     return 0;
28 }