Compilare: main.cpp: In function 'int main()': main.cpp:49:75: warning: suggest parentheses around comparison in operand of '^' [-Wparentheses] if( ( i + j ) % 4 == 0 && ( ans[ i ][ k ] ^ ans[ j ][ k ] != ( ( w[ i ][ j ] & ( 1ll << k ) ) != 0 ) ) ) ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:54:75: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] if( ( i + j ) % 4 == 2 && ( ans[ i ][ k ] & ans[ j ][ k ] != ( ( w[ i ][ j ] & ( 1ll << k ) ) != 0 ) ) ) ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~