Compilare: user.c:3:21: warning: built-in function ‘exp’ declared as non-function [enabled by default] int k=0,baza[50000],exp[50000]; ^ user.c: In function ‘main’: user.c:31:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("gfact.in","r",stdin); ^ user.c:32:12: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result [-Wunused-result] freopen("gfact.out","w",stdout); ^ user.c:33:10: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld",&p,&q); ^