Compilare: user.cpp: In function ‘int main()’: user.cpp:92:21: warning: unused variable ‘sum’ [-Wunused-variable] int sum, lastIndex; ^ user.cpp:93:22: warning: unused variable ‘found’ [-Wunused-variable] bool found = false; ^ user.cpp:40:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, count0 = 0, countX = 0, state = 0, k = 0; ^ user.cpp:102:41: warning: ‘lastOIndex’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (lastOIndex >= 0 && lastOIndex <= 2) ^