Compilare: user.cpp: In function ‘int main()’: user.cpp:208:43: warning: format ‘%lf’ expects argument of type ‘double*’, but argument 3 has type ‘float*’ [-Wformat=] fscanf(f,"%lf %lf",&V[i].x,&V[i].y); ^ user.cpp:208:43: warning: format ‘%lf’ expects argument of type ‘double*’, but argument 4 has type ‘float*’ [-Wformat=] user.cpp:205:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&N); ^ user.cpp:208:44: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%lf %lf",&V[i].x,&V[i].y); ^