Compilare: user.cpp: In function ‘int compar(pct, pct)’: user.cpp:27:32: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if(a.x<b.x || a.x==b.x && a.y<b.y) ^ user.cpp:29:37: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] else if(a.x>b.x || a.x==b.x && a.y>b.y) ^ user.cpp: In function ‘int main()’: user.cpp:76:21: warning: ‘n’ is used uninitialized in this function [-Wuninitialized] prelucrare(v, n); ^