Problem	examinations
User	wongyikai
Submission Time	2024-07-16 15:02:25
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

examinations.cpp: In function ‘long long int query(long long int, long long int, long long int, long long int, long long int, __gnu_pbds::tree<long long int, __gnu_pbds::null_type, std::less_equal<long long int>, __gnu_pbds::rb_tree_tag, __gnu_pbds::tree_order_statistics_node_update>*, long long int)’:
examinations.cpp:31:46: error: ‘x’ was not declared in this scope
31 | return t[v].size()-t[v].order_of_key(x);
| ^