Compilare: user.c: In function ‘main’: user.c:31:3: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long long int’ [-Wformat=] fprintf( fout , "%d" , rez ); ^ user.c:12:9: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin , "%d%d%d%d" , &n , &k , &a , &b ); ^ user.c:15:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin , "%d" , &x ); ^