foo.c: In function 'main':
foo.c:16:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   if(ss(n)==0)
   ^~
foo.c:18:4: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
    while(p>0&&t>0)
    ^~~~~
foo.c:15:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ^~~~~~~~~~~~~~
foo.c:20:10: warning: 't' may be used uninitialized in this function [-Wmaybe-uninitialized]
         p=t/10;
         ~^~~~~

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