Compilare: user.cpp: In function ‘int main()’: user.cpp:62:55: warning: suggest parentheses around comparison in operand of ‘^’ [-Wparentheses] if ( x[i]>=3 && y[i]>=3 && d[x[i]-2][y[i]-2]==s^d[x[i]][y[i]] ) { ^ user.cpp:65:53: warning: suggest parentheses around comparison in operand of ‘^’ [-Wparentheses] if ( x[i]>=2 && d[x[i]-1][y[i]]^d[1][y[i]]==s^d[x[i]][y[i]] ) { ^ user.cpp:68:53: warning: suggest parentheses around comparison in operand of ‘^’ [-Wparentheses] if ( y[i]>=2 && d[x[i]][y[i]-1]^d[x[i]][1]==s^d[x[i]][y[i]] ) { ^ user.cpp:72:47: warning: suggest parentheses around comparison in operand of ‘^’ [-Wparentheses] if ( d[x[i]-k][y[i]]^d[k][y[i]]==s^d[x[i]][y[i]] ) { ^ user.cpp:75:49: warning: suggest parentheses around comparison in operand of ‘^’ [-Wparentheses] if ( d[x[i]-k-1][y[i]]^d[k][y[i]]==s^d[x[i]][y[i]] ) { ^ user.cpp:80:47: warning: suggest parentheses around comparison in operand of ‘^’ [-Wparentheses] if ( d[x[i]][y[i]-k]^d[x[i]][k]==s^d[x[i]][y[i]] ) { ^ user.cpp:83:49: warning: suggest parentheses around comparison in operand of ‘^’ [-Wparentheses] if ( d[x[i]][y[i]-k-1]^d[x[i]][k]==s^d[x[i]][y[i]] ) { ^