Compilare: user.cpp: In function ‘int main()’: user.cpp:106:17: warning: unused variable ‘nr’ [-Wunused-variable] int nr=0,x2; ^ user.cpp:106:22: warning: variable ‘x2’ set but not used [-Wunused-but-set-variable] int nr=0,x2; ^ user.cpp:56:28: warning: variable ‘o’ set but not used [-Wunused-but-set-variable] int i, j, o, p, x; ^ user.cpp:56:31: warning: variable ‘p’ set but not used [-Wunused-but-set-variable] int i, j, o, p, x; ^ user.cpp:122:79: warning: ‘x’ may be used uninitialized in this function [-Wmaybe-uninitialized] if(matrice [i][j] == matrice[i][j+2] && matriceFill[i][j]==x && matriceFill[i][j+2]!=x && OK(i, j+2)) ^