---
category_name: medium
problem_code: MONSTER
problem_name: 'Killing Monsters'
languages_supported:
- C
- CPP14
- JAVA
- PYTH
- 'PYTH 3.5'
- PYPY
- CS2
- 'PAS fpc'
- 'PAS gpc'
- RUBY
- PHP
- GO
- NODEJS
- HASK
- rust
- SCALA
- swift
- D
- PERL
- FORT
- WSPC
- ADA
- CAML
- ICK
- BF
- ASM
- CLPS
- PRLG
- ICON
- 'SCM qobi'
- PIKE
- ST
- NICE
- LUA
- BASH
- NEM
- 'LISP sbcl'
- 'LISP clisp'
- 'SCM guile'
- JS
- ERL
- TCL
- kotlin
- PERL6
- TEXT
- 'SCM chicken'
- CLOJ
- COB
- FS
max_timelimit: '3'
source_sizelimit: '50000'
problem_author: chemthan
problem_tester: null
date_added: 4-11-2017
tags:
- chemthan
- chemthan
- jan18
- medium
editorial_url: 'https://discuss.codechef.com/problems/MONSTER'
time:
view_start_date: 1516008600
submit_start_date: 1516008600
visible_start_date: 1516008600
end_date: 1735669800
current: 1525454447
is_direct_submittable: false
layout: problem
---
All submissions for this problem are available.### Read problems statements in [Mandarin chinese](http://www.codechef.com/download/translated/JAN18/mandarin/MONSTER.pdf), [Russian](http://www.codechef.com/download/translated/JAN18/russian/MONSTER.pdf) and [Vietnamese](http://www.codechef.com/download/translated/JAN18/vietnamese/MONSTER.pdf) as well.
Chef is playing a game named "Killing monsters". In this game, at the beginning, there are **n** monsters arranged in a row (numbered 0 through **n-1** from left to right). The **i**-th monster initially has **hi** health points. A monster dies if its health points become ≤ 0.
Chef is going to perform **q** actions. For each action, Chef chooses two numbers **x**, **y** and shoots all living monsters whose index **k** satisfies **k** & **x** = **k** (& denotes the bitwise AND operator). Each monster he shoots loses **y** health points.
After each action, please help Chef determine the number of living monsters.
### Input
- The first line of the input contains a single integer **n** denoting the number of monsters.
- The second line contains **n** space-separated integers **h0, h1, ..., hn-1** denoting the initial health of monsters.
- The third line contains a single integer **q** denoting the number of actions.
- **q** lines follow. Each of these lines contains two space-separated integers **x** and **y** describing one action.
### Output
For each action, print a single line containing one integer — the number of living monsters afterwards.
### Constraints
- 1 ≤ **n** ≤ 217
- 1 ≤ **hi** ≤ 109 for each valid **i**
- 1 ≤ **q** ≤ 218
- 0 ≤ **x** ≤ 109
- 1 ≤ **y** ≤ 109
### Subtasks
**Subtask #1 (10 points):**
- 1 ≤ **n** ≤ 210
- 1 ≤ **q** ≤ 211
**Subtask #2 (20 points):**
- **hi** = 1 for each valid **i**
- **y** = 1 for each action
**Subtask #3 (70 points):** original constraints
### Example
<pre><b>Input:</b>
5
1 2 3 4 5
5
1 1
2 2
3 3
4 4
5 5
<b>Output:</b>
4
4
2
2
1
</pre>