Compilare: user.cpp: In function ‘void inter(Aint*)’: user.cpp:83:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<nod->st->coord.size()&&j<nod->dr->coord.size()){ ^ user.cpp:83:58: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<nod->st->coord.size()&&j<nod->dr->coord.size()){ ^ user.cpp:93:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<nod->st->coord.size()){ ^ user.cpp:97:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(j<nod->dr->coord.size()){ ^ user.cpp: In function ‘int main()’: user.cpp:128:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d " ,&n); ^ user.cpp:131:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d " ,&x,&y); ^