/in/foo.c: In function 'main':
/in/foo.c:5:1: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'long int *' [-Wformat=]
 scanf("%d",&n);
 ^
/in/foo.c:8:1: warning: format '%d' expects argument of type 'int', but argument 2 has type 'long int' [-Wformat=]
 printf("%d",sum);
 ^