/in/foo.cc: In function 'void splay(int)':
/in/foo.cc:94:15: warning: suggest parentheses around comparison in operand of '^' [-Wparentheses]
    if(ch[f][1]==u^ch[ff][1]==f)
       ~~~~~~~~^~~
/in/foo.cc:93:5: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses]
   if(!isroot(f))
     ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:151:18: warning: format '%lld' expects argument of type 'long long int*', but argument 2 has type 'int*' [-Wformat=]
   si("%lld",&v[i]);
                  ^
/in/foo.cc:161:21: warning: format '%lld' expects argument of type 'long long int*', but argument 3 has type 'int*' [-Wformat=]
    si("%d%lld",&a,&w);
                     ^

VJ4Error('ProblemDataNotFoundError', '题目 590c987dd3d8a13210993742 的数据未找到。', 'newbzoj', '590c987dd3d8a13210993742')