Compilare: user.cpp: In function ‘int main()’: user.cpp:11:25: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d",&R,&P); ^ user.cpp:14:27: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in , "%f", &v[i]); ^ user.cpp:28:36: warning: ‘unde’ may be used uninitialized in this function [-Wmaybe-uninitialized] v.insert(v.begin() + unde , v[unde-1] + difmax / 2); ^