Compilare: user.cpp: In function ‘int main()’: user.cpp:10:32: warning: format ‘%lld’ expects argument of type ‘long long int*’, but argument 3 has type ‘long int*’ [-Wformat=] fscanf(fin,"%lld%lld",&a,&b); ^ user.cpp:10:32: warning: format ‘%lld’ expects argument of type ‘long long int*’, but argument 4 has type ‘long int*’ [-Wformat=] user.cpp:10:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%lld%lld",&a,&b); ^