foo.c: In function 'main':
foo.c:20:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ^~~~~~~~~~~~~~
foo.c: In function 'h':
foo.c:12:4: warning: 'm' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if(i==m)
    ^
foo.c: In function 'main':
foo.c:12:4: warning: 'm' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if(i==m)
    ^
foo.c:4:8: note: 'm' was declared here
  int t,m,i;
        ^

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