Compilare: user.cpp: In function ‘int main()’: user.cpp:18:37: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘long long unsigned int*’ [-Wformat=] fscanf(fin,"%d",&x[i].nr); ^ user.cpp:15:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&n); ^ user.cpp:18:38: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin,"%d",&x[i].nr); ^ user.cpp:69:18: warning: ‘ii’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(int i=ii+1;i<=n;i++) ^