Compilare: main.cpp: In function 'int main()': main.cpp:32:16: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if ( j >= l ) ^ main.cpp:79:25: warning: 'p2' may be used uninitialized in this function [-Wmaybe-uninitialized] g << p1 << ' ' << p2; ^ main.cpp:79:16: warning: 'p1' may be used uninitialized in this function [-Wmaybe-uninitialized] g << p1 << ' ' << p2; ^~~