Compilare: user.c: In function ‘compute’: user.c:26:6: warning: unused variable ‘i’ [-Wunused-variable] int i; ^ user.c: In function ‘factorial_remainder’: user.c:10:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.c: In function ‘main’: user.c:38:7: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^ user.c:41:8: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%ld%ld", &n, &k); ^