Compilare: main.cpp: In function 'bool s(int, int)': main.cpp:23:17: warning: suggest parentheses around comparison in operand of '^' [-Wparentheses] return (v[x][y]==v[x-1][y] ^ v[x][y]==v[x+1][y]) && (v[x][y]==v[x][y-1] ^ v[x][y]==v[x][y+1]); ~~~~~~~^~~~~~~~~~~ main.cpp:23:62: warning: suggest parentheses around comparison in operand of '^' [-Wparentheses] return (v[x][y]==v[x-1][y] ^ v[x][y]==v[x+1][y]) && (v[x][y]==v[x][y-1] ^ v[x][y]==v[x][y+1]); ~~~~~~~^~~~~~~~~~~