Compilare: user.cpp: In function ‘void citire()’: user.cpp:21:49: warning: suggest parentheses around ‘-’ inside ‘<<’ [-Wparentheses] if((a[i][j]%(1<<s))xor(k%(1<<s))!=1<<s-1) ^ user.cpp:21:43: warning: suggest parentheses around comparison in operand of ‘^’ [-Wparentheses] if((a[i][j]%(1<<s))xor(k%(1<<s))!=1<<s-1) ^