foo.c: In function 'main':
foo.c:6:10: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'long int *' [-Wformat=]
  scanf("%d%d%d%d",&a,&b,&c,&d);
         ~^        ~~
         %ld
foo.c:6:12: warning: format '%d' expects argument of type 'int *', but argument 3 has type 'long int *' [-Wformat=]
  scanf("%d%d%d%d",&a,&b,&c,&d);
           ~^         ~~
           %ld
foo.c:6:14: warning: format '%d' expects argument of type 'int *', but argument 4 has type 'long int *' [-Wformat=]
  scanf("%d%d%d%d",&a,&b,&c,&d);
             ~^          ~~
             %ld
foo.c:6:16: warning: format '%d' expects argument of type 'int *', but argument 5 has type 'long int *' [-Wformat=]
  scanf("%d%d%d%d",&a,&b,&c,&d);
               ~^           ~~
               %ld
foo.c:6:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d%d",&a,&b,&c,&d);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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