Compilare: user.cpp: In function ‘int piv(int, int)’: user.cpp:13:25: warning: ‘ok’ may be used uninitialized in this function [-Wmaybe-uninitialized] ok=!ok; ^ user.cpp: In function ‘void quicksort(int, int)’: user.cpp:13:25: warning: ‘ok’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:9:6: note: ‘ok’ was declared here bool ok; ^