Compilare: user.cpp: In function ‘int main()’: user.cpp:33:21: warning: format ‘%d’ expects argument of type ‘int*’, but argument 3 has type ‘long int*’ [-Wformat=] fscanf(f,"%d",&n); ^ user.cpp:57:25: warning: format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘long int’ [-Wformat=] fprintf(g,"%d\n",k-1); ^ user.cpp:29:25: warning: variable ‘poz’ set but not used [-Wunused-but-set-variable] int semn=1,st[nmax],poz; ^ user.cpp:30:14: warning: unused variable ‘j’ [-Wunused-variable] long n,i,j,k; ^ user.cpp:33:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ user.cpp:35:45: 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); ^