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- #include<stdio.h>
- #include<stdlib.h>
- int compare (const void * a, const void * b)
- {
- return ( *(int*)a - *(int*)b );
- }
- int main()
- { int t,m,n,x,y,s;
- int array[1000];
- scanf("%d",&t);
- for(int i=0;i<t;i++)
- { scanf("\n");
- scanf("%d %d",&m,&n);
- for(s=0;s<1000;s++)array[s]=0;
- for(int p=0;p<n;p++)
- { scanf("%d %d",&x,&y);
- array[x-1]++;
- array[y-1]++;
- }
- qsort (array,1000, sizeof(int), compare);
- printf("Case %d: %d\n",i+1,array[1000-m]);
- }
- return 0;
- }
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