Compilare: user.c: In function ‘main’: user.c:11:1: warning: overflow in implicit constant conversion [-Woverflow] smax=-20000000000000; ^ user.c:10:7: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&n); ^ user.c:14:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&x); ^ user.c:15:7: warning: ‘sc’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(sc<0) ^