Compilare: user.c: In function ‘main’: user.c:27:5: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long long int’ [-Wformat=] fprintf ( fout,"%d",nrf ) ; ^ user.c:9:30: warning: unused variable ‘steag’ [-Wunused-variable] long long n, k, r, i, x, steag=0, c, j, nrf ; ^ user.c:9:21: warning: unused variable ‘r’ [-Wunused-variable] long long n, k, r, i, x, steag=0, c, j, nrf ; ^ user.c:10:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf( fin,"%lld%lld",&n,&k ) ; ^ user.c:13:16: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf ( fin,"%lld",&x ) ; ^