Compilare: user.cpp: In function ‘void read()’: user.cpp:45:58: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(P[i].y < rf.second || P[i].y == rf.second && P[i].x < rf.first) ^ user.cpp: In function ‘void print()’: user.cpp:68:5: warning: ‘pz’ may be used uninitialized in this function [-Wmaybe-uninitialized] for(int i = 0; i < pz ; ++i) ^