Compilare: user.cpp: In function ‘int main()’: user.cpp:15:9: warning: unused variable ‘i’ [-Wunused-variable] int i, j, k, l,ok1=0,ok2=0,ok3=0, z2=0,x2=0, z1=0,x1=0,z3,x3; ^ user.cpp:15:12: warning: unused variable ‘j’ [-Wunused-variable] int i, j, k, l,ok1=0,ok2=0,ok3=0, z2=0,x2=0, z1=0,x1=0,z3,x3; ^ user.cpp:15:15: warning: unused variable ‘k’ [-Wunused-variable] int i, j, k, l,ok1=0,ok2=0,ok3=0, z2=0,x2=0, z1=0,x1=0,z3,x3; ^ user.cpp:15:18: warning: unused variable ‘l’ [-Wunused-variable] int i, j, k, l,ok1=0,ok2=0,ok3=0, z2=0,x2=0, z1=0,x1=0,z3,x3; ^ user.cpp:71:30: warning: ‘x3’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(a[x][y]=='X' ) x3++; ^ user.cpp:72:30: warning: ‘z3’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(a[x] [y]=='0') z3++; ^