Compilare: user.cpp: In function ‘int main()’: user.cpp:78:31: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if ( (a[i-1][j]==-1) && com(b[i-1][j],k,s)|| ^ user.cpp:80:31: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] (a[i][j+1]==-1) && com(b[i][j+1],k,s)|| ^ user.cpp:81:31: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] (a[i][j-1]==-1) && com(b[i][j-1],k,s) ) ^ user.cpp:89:31: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if ( (a[i-1][j]==-1) && com(b[i-1][j],k,s)|| ^ user.cpp:91:31: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] (a[i][j+1]==-1) && com(b[i][j+1],k,s)|| ^ user.cpp:92:31: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] (a[i][j-1]==-1) && com(b[i][j-1],k,s) ) ^