Compilare: user.cpp: In function ‘void ver_rez()’: user.cpp:97:10: warning: variable ‘c’ set but not used [-Wunused-but-set-variable] char c[2]; ^ user.cpp:110:14: warning: unused variable ‘l2’ [-Wunused-variable] int l1=1,l2=1; ^ user.cpp: In function ‘int main()’: user.cpp:252:23: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d",&n); ^ user.cpp:256:42: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d",&v[i].x,&v[i].y); ^