Compilare: user.c:7:13: warning: conflicting types for built-in function ‘exp’ [enabled by default] long long exp(long long x,long long i) ^ user.c: In function ‘exp’: user.c:16:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.c: In function ‘main’: user.c:25:11: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%lld",&n); ^ user.c:26:13: warning: ignoring return value of ‘fscanf’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%lld",&p); ^