Compilare: user.cpp: In function ‘int main()’: user.cpp:30:7: warning: statement has no effect [-Wunused-value] ok==1; ^ user.cpp:40:19: warning: statement has no effect [-Wunused-value] ok==0; ^ user.cpp:42:18: warning: ‘ok’ may be used uninitialized in this function [-Wmaybe-uninitialized] else if(ok==1) ^ user.cpp:32:20: warning: ‘l2’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(i==l1||i==l2) ^ user.cpp:32:13: warning: ‘l1’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(i==l1||i==l2) ^