System Error
/in/foo.cc: In function 'void splay(int, int)':
/in/foo.cc:34:6: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses]
if (z!=n)
^
/in/foo.cc: In function 'int Excalibur(int, int, int)':
/in/foo.cc:85:6: warning: unused variable 'u' [-Wunused-variable]
int u=n,rua=0;
^
VJ4Error('ProblemDataNotFoundError', '题目 590c9c4ad3d8a13210993bbe 的数据未找到。', 'newbzoj', '590c9c4ad3d8a13210993bbe')
