Problem	sadtrainer2
User	HighLithop
Submission Time	2026-04-29 22:19:51
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

sadtrainer2.cpp: In function ‘int main()’:
sadtrainer2.cpp:27:10: error: ‘class __gnu_pbds::tree<long long int, __gnu_pbds::null_type, std::less<long long int>, __gnu_pbds::rb_tree_tag, __gnu_pbds::tree_order_statistics_node_update>’ has no member named ‘reserve’
27 | present.reserve(present_n);
| ^~~~~~~