Compilare: user.cpp: In function ‘void rezolva()’: user.cpp:66:18: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if (i == 1 && !(m[i][j] & 8) || i == r && !(m[i][j] & 2) ~~~~~~~^~~~~~~~~~~~~~~~~ user.cpp:67:17: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] || j == 1 && !(m[i][j] & 1) || j == c && !(m[i][j] & 4) ~~~~~~~^~~~~~~~~~~~~~~~~ user.cpp:67:45: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] || j == 1 && !(m[i][j] & 1) || j == c && !(m[i][j] & 4) ~~~~~~~^~~~~~~~~~~~~~~~~ user.cpp:68:24: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] || (m[i][j] & 1) && (m[i][j - 1] & 4) || (m[i][j] & 8) && (m[i - 1][j] & 2)) { ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~ user.cpp:68:62: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] || (m[i][j] & 1) && (m[i][j - 1] & 4) || (m[i][j] & 8) && (m[i - 1][j] & 2)) { ~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~