1 files changed, 11 insertions, 2 deletions
diff --git a/datastructures/pbds.cpp b/datastructures/pbds.cpp
index c2b44cc..a0e5383 100644
--- a/datastructures/pbds.cpp
+++ b/datastructures/pbds.cpp
@@ -1,10 +1,19 @@
+#include <ext/pb_ds/priority_queue.hpp>
+template<typename T>
+using pQueue = __gnu_pbds::priority_queue<T>; //<T, greater<T>>
+auto it = pq.push(5); // O(1)
+pq.modify(it, 6);     // O(log n)
+pq.erase(it);         // O(log n)
+pq.join(pq2);         // O(1)
+pq.swap(pq2);         // O(1)
+
 #include <ext/pb_ds/assoc_container.hpp>
 using namespace __gnu_pbds;
 template<typename T>
 using Tree = tree<T, null_type, less<T>, rb_tree_tag,
                   tree_order_statistics_node_update>;
-// T.order_of_key(x): number of elements strictly less than x
-// *T.find_by_order(k): k-th element
+T.order_of_key(x); // number of elements strictly less than x
+auto it = T.find_by_order(k); // k-th element
 
 template<typename T>
 struct chash {