Compilare: user.cpp: In function ‘int main()’: user.cpp:47:49: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘long long unsigned int*’ [-Wformat=] fscanf(f,"%d%d",&X[i].first,&X[i].second); ^ user.cpp:47:49: warning: format ‘%d’ expects argument of type ‘int*’, but argument 4 has type ‘long long unsigned int*’ [-Wformat=] user.cpp:43:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&N); ^ user.cpp:47:50: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d%d",&X[i].first,&X[i].second); ^