/in/foo.cc: In function 'int main()':
/in/foo.cc:24:13: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
    if(zz1==1&&zz2==1||zz1==1&&zz2==0){cout<<"the first player won"<<endl;exit(0);}
       ~~~~~~^~~~~~~~
/in/foo.cc:36:13: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
    if(zz1==1&&zz2==1||zz1==1&&zz2==0){cout<<"the first player won"<<endl;exit(0);}
       ~~~~~~^~~~~~~~