/in/foo.cc: In function 'int main()':
/in/foo.cc:25:51: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
             while(ruler[i+t]=='*'||ruler[i+t]=='*'&&ruler[i+t+1]=='('||ruler[i+t]=='*'&&ruler[i+t+1]==')')
                                    ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~
/in/foo.cc:25:87: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
             while(ruler[i+t]=='*'||ruler[i+t]=='*'&&ruler[i+t+1]=='('||ruler[i+t]=='*'&&ruler[i+t+1]==')')
                                                                        ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~