foo.c: In function 'main':
foo.c:63:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for(int i=0;i<n1;i++)printf("%d ",a[i]);printf("\n");
  ^~~
foo.c:63:42: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
  for(int i=0;i<n1;i++)printf("%d ",a[i]);printf("\n");
                                          ^~~~~~
foo.c:56:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n1,&n2);
  ^~~~~~~~~~~~~~~~~~~~~
foo.c:57:23: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=0;i<n1;i++)scanf("%d",&a[i]);
                       ^~~~~~~~~~~~~~~~~
foo.c:58:23: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=0;i<n2;i++)scanf("%d",&b[i]);
                       ^~~~~~~~~~~~~~~~~
foo.c: In function 'MergeSubs':
foo.c:44:20: warning: 'temp' may be used uninitialized in this function [-Wmaybe-uninitialized]
   for(int i=0;i<len-1;i++){
                 ~~~^~

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