About the Toph Problems category

Discuss about problems from Toph’s archive. Found a neat trick to solve a problem? Need a bit of hint to get started? You can talk all about it here.

does toph support
#include <ext/pb_ds/assoc_container.hpp> // Common file
#include <ext/pb_ds/tree_policy.hpp> // Including tree_order_statistics_node_update
using namespace __gnu_pbds;
typedef tree< pair <long long int, long long int>, null_type, less<pair <long long int, long long int> >, rb_tree_tag, tree_order_statistics_node_update> ordered_set;
ordered_set s;