foo.c: In function 'main':
foo.c:54:11: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[11]' [-Wformat=]
   scanf("%s%d:%d:%d%d:%d:%d",&a[i].xh,&h1,&m1,&s1,&h2,&m2,&s2);
          ~^                  ~~~~~~~~
foo.c:50:10: warning: unused variable 'j' [-Wunused-variable]
  int n,i,j;
          ^
foo.c:51:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ^~~~~~~~~~~~~~
foo.c:54:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%s%d:%d:%d%d:%d:%d",&a[i].xh,&h1,&m1,&s1,&h2,&m2,&s2);
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Found 10 testcases.
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