Alhamdulillah

Author: Tamim-saad

List Removals.cpp

@@ -0,0 +1,40 @@
+#include <bits/stdc++.h>
+using namespace std;
+#include <ext/pb_ds/assoc_container.hpp>
+using namespace __gnu_pbds;
+
+// template <typename Key, typename Mapped, typename Compare, typename Tag,
+//           typename Policy>
+// class tree;
+
+#define ll long long
+typedef tree<pair<ll, ll>, null_type, less<pair<ll, ll>>, rb_tree_tag,
+             tree_order_statistics_node_update>
+    indexed_multiset;
+
+int main() {
+  ll n, ans, k, ind = 0;
+  cin >> n;
+  ll x;
+
+  indexed_multiset ms;
+
+  for (ll i = 1; i <= n; i++) {
+    cin >> x;
+    ms.insert({ind++, x});
+  }
+
+  vector<ll> vans;
+
+  for (ll i = 1; i <= n; i++) {
+    cin >> x;
+    auto it = ms.find_by_order(x - 1);
+    vans.push_back(it->second);
+    ms.erase(it);
+  }
+
+  for (auto x : vans)
+    cout << x << " ";
+
+  return 0;
+}