Compilare: user.cpp: In function ‘int main()’: user.cpp:26:40: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if (b[a[st].lin + 1][a[st].col] == 0 && a[st].lin + 1 <= n || b[a[st].lin + 1][a[st].col] > b[a[st].lin][a[st].col] && a[st].lin + 1 <= n) ^ user.cpp:33:38: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if (b[a[st].lin][a[st].col+1] == 0 && a[st].col + 1 <= n || b[a[st].lin][a[st].col+1] > b[a[st].lin][a[st].col] && a[st].col + 1 <= n) ^ user.cpp:40:38: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if (b[a[st].lin-1][a[st].col] == 0 && a[st].lin-1>= 1 || b[a[st].lin - 1][a[st].col] > b[a[st].lin][a[st].col] && a[st].lin -1>= 1) ^ user.cpp:47:38: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if (b[a[st].lin][a[st].col-1] == 0 && a[st].col-1>=1|| b[a[st].lin][a[st].col-1] > b[a[st].lin][a[st].col] && a[st].col-1>=1) ^