package exam; import java.util.HashMap; class Grandpabernie{ public static class RBBST{ Node root; class Node{ Node left, right; int key; int val; int size; boolean color; Node(int key, int val, int s, boolean color){ this.key = key; this.color = color; this.val = val; size = s; } public int index(){ if( right != null){ return size - right.size; } return size; } } public int get_key(int i){ return get_key(root, i); } public int get_key(Node h, int i){ int lb, ub; if (h.left != null){ lb = h.left.size+1; } else{ lb = i; } ub = lb + h.val; if( i >= lb && i < ub){ return h.key; } if( i < h.index()){ return get_key(h.left, i); } else{ return get_key(h.right, i-h.index()); } } boolean isRed(Node h){ if(h==null) return false; return h.color == true; } Node rotateLeft(Node h){ Node x = h.right; h.right = x.left; x.left = h; x.color = h.color; h.color = true; x.size = h.size; h.size = h.val + size(h.left) + size(h.right); return x; } int size(Node h){ if (h==null) return 0; return h.size; } Node rotateRight(Node h){ Node x = h.left; h.left = x.right; x.right = h; x.color = h.color; h.color = true; x.size = h.size; h.size = h.val + size(h.left) + size(h.right); return x; } void flipColors(Node h){ h.color = true; h.left.color = false; h.right.color = false; } public void insert(int ins_key, int val){ root = insert(root, ins_key, val); root.color = false; } RBBST(int ins_key){ insert(ins_key, 1); } public Node insert(Node h, int ins_key, int val){ if(h==null) return new Node(ins_key, val, 1, true); int cmp = Integer.compare(ins_key, h.key); if(cmp<0) h.left = insert(h.left, ins_key, val); else if(cmp>0) h.right = insert(h.right, ins_key, val); else h.val += val; if( isRed(h.right) && ! isRed(h.left)) h = rotateLeft(h); if( h.left != null && isRed(h.left) && isRed(h.left.left)) h = rotateRight(h); if( isRed(h.right) && isRed(h.left)) flipColors(h); h.size = size(h.left) + size(h.right) + h.val; return h; } } public static void main(String[] args){ Kattio io = new Kattio(System.in, System.out); int n = io.getInt(); HashMap h = new HashMap<>(n); for(int i = 0; i < n; i++){ String country = io.getWord(); int year = io.getInt(); if(h.containsKey(country)){ h.get(country).insert(year, 1); } else{ RBBST temp = new RBBST(year); h.put(country, temp); } } int q = io.getInt(); for(int i = 0; i