Compilare: user.cpp: In function ‘void inter(AintY*)’: user.cpp:36:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<nod->st->coord.size()&&j<nod->dr->coord.size()){ ^ user.cpp:36:58: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<nod->st->coord.size()&&j<nod->dr->coord.size()){ ^ user.cpp:46:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<nod->st->coord.size()){ ^ user.cpp:50:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(j<nod->dr->coord.size()){ ^ user.cpp: In function ‘int query_y(AintY*, int, int)’: user.cpp:60:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<nod->coord.size()&&nod->coord[i]<y) ^ user.cpp:63:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(j+i<nod->coord.size()){ ^ user.cpp: In function ‘int main()’: user.cpp:171:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d " ,&n); ^ user.cpp:174:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi,"%d %d " ,&x,&y); ^