Compilare: user.cpp: In function ‘int main()’: user.cpp:35:26: warning: format ‘%lld’ expects argument of type ‘long long int*’, but argument 3 has type ‘int*’ [-Wformat=] fscanf(fin,"%lld", &n); ^ user.cpp:32:17: warning: unused variable ‘nr’ [-Wunused-variable] long long y,nr,i,p; ^ user.cpp:35:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%lld", &n); ^ user.cpp:37:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d", &v[i].first); ^