Compilare: user.cpp: In function ‘int main()’: user.cpp:25:7: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if ((a[i][j].k0 == a[i][j].k1 )&& (a[i][j].k0 == a[i][j].k2)) ^ user.cpp:30:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if ((a[i][j].k0 - a[i][j-3].k0 == a[i][j].k1 - a[i][j-3].k1 ) && (a[i][j].k0 - a[i][j-3].k0 == a[i][j].k2 - a[i][j-3].k2) ) ^