Compilare: user.c: In function ‘main’: user.c:36:6: warning: unused variable ‘tl’ [-Wunused-variable] int tl=0; ^ user.c:35:6: warning: unused variable ‘tr’ [-Wunused-variable] int tr=0; ^ user.c:21:9: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^ user.c:24:7: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %ld", &n, &b); ^ user.c:25:7: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &nstari); ^ user.c:29:8: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &timp[i], &stare[i]); ^