Compilare: user.cpp: In function ‘int main()’: user.cpp:47:23: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] if (k&pow(2,i)==pow(2,i)) { ^ user.cpp:57:37: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses] if (a[i][j]&pow(2,p)==pow(2,p)) { ^ user.cpp:63:26: warning: suggest parentheses around comparison in operand of ‘^’ [-Wparentheses] if (a[i][j]^k==pow(2,S)-1) { ^