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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>Exported Data</title>
<meta content="width=device-width, initial-scale=1.0" name="viewport"/>
<link href="css/style.css" rel="stylesheet"/>
<script src="js/script.js" type="text/javascript">
</script>
</head>
<body onload="CheckLocation();">
<div class="page_wrap">
<div class="page_header">
<div class="content">
<div class="text bold">
21DC: Question Portal
</div>
</div>
</div>
<div class="page_body chat_page">
<div class="history">
<div class="message service" id="message-1">
<div class="body details">
30 May 2020
</div>
</div>
<div class="message service" id="message1">
<div class="body details">
Channel «Code With Ozone» created
</div>
</div>
<div class="message service" id="message-2">
<div class="body details">
1 June 2020
</div>
</div>
<div class="message default clearfix" id="message6">
<div class="pull_left userpic_wrap">
<div class="userpic userpic1" style="width: 42px; height: 42px">
<div class="initials" style="line-height: 42px">
2
</div>
</div>
</div>
<div class="body">
<div class="pull_right date details" title="01.06.2020 08:40:41">
08:40
</div>
<div class="from_name">
21DC: Question Portal
</div>
<div class="text">
<a href="" onclick="return ShowHashtag("21DC")">#21DC</a> <a href="" onclick="return ShowHashtag("CodeWithOzone")">#CodeWithOzone</a> <br><br>Hello Guys, thanks for joining us at 21DC with Ozone. <br><br>As scheduled we'll be giving you today's questions at 10AM, make sure you try them out.<br><br>Cheers<br>Team Ozone
</div>
</div>
</div>
<div class="message default clearfix" id="message7">
<div class="pull_left userpic_wrap">
<div class="userpic userpic1" style="width: 42px; height: 42px">
<div class="initials" style="line-height: 42px">
2
</div>
</div>
</div>
<div class="body">
<div class="pull_right date details" title="01.06.2020 10:00:02">
10:00
</div>
<div class="from_name">
21DC: Question Portal
</div>
<div class="media_wrap clearfix">
<a class="photo_wrap clearfix pull_left" href="photos/photo_1@01-06-2020_10-00-02.jpg">
<img class="photo" src="photos/photo_1@01-06-2020_10-00-02_thumb.jpg" style="width: 260px; height: 146px"/>
</a>
</div>
<div class="text">
Day 1<br><br>Problem 1: <a href="https://leetcode.com/problems/number-of-steps-to-reduce-a-number-to-zero/">Number of steps to 0</a> <br>Problem 2: <a href="https://leetcode.com/problems/non-decreasing-array/">Non decreasing array</a> <br>Problem 3: <a href="https://leetcode.com/problems/hamming-distance/">Hamming Distance</a> <br><br>Cheers<br>Team Ozone
</div>
</div>
</div>
<div class="message service" id="message-3">
<div class="body details">
2 June 2020
</div>
</div>
<div class="message default clearfix" id="message10">
<div class="pull_left userpic_wrap">
<div class="userpic userpic1" style="width: 42px; height: 42px">
<div class="initials" style="line-height: 42px">
2
</div>
</div>
</div>
<div class="body">
<div class="pull_right date details" title="02.06.2020 10:00:03">
10:00
</div>
<div class="from_name">
21DC: Question Portal
</div>
<div class="media_wrap clearfix">
<a class="photo_wrap clearfix pull_left" href="photos/photo_2@02-06-2020_10-00-03.jpg">
<img class="photo" src="photos/photo_2@02-06-2020_10-00-03_thumb.jpg" style="width: 260px; height: 146px"/>
</a>
</div>
<div class="text">
<a href="" onclick="return ShowHashtag("21DC")">#21DC</a> <a href="" onclick="return ShowHashtag("CodeWithOzone")">#CodeWithOzone</a> <br><br>Day 2<br><br>Problem 1: <a href="https://leetcode.com/problems/third-maximum-number/">Third maximum number</a> <br>Problem 2: <a href="https://leetcode.com/problems/island-perimeter/">Island Perimeter</a> <br>Problem 3: <a href="https://leetcode.com/problems/kids-with-the-greatest-number-of-candies/">Kids with greatest no. of candies</a> <br><br>Cheers<br>Team Ozone
</div>
</div>
</div>
<div class="message service" id="message-4">
<div class="body details">
3 June 2020
</div>
</div>
<div class="message default clearfix" id="message15">
<div class="pull_left userpic_wrap">
<div class="userpic userpic1" style="width: 42px; height: 42px">
<div class="initials" style="line-height: 42px">
2
</div>
</div>
</div>
<div class="body">
<div class="pull_right date details" title="03.06.2020 10:00:03">
10:00
</div>
<div class="from_name">
21DC: Question Portal
</div>
<div class="media_wrap clearfix">
<a class="photo_wrap clearfix pull_left" href="photos/photo_3@03-06-2020_10-00-03.jpg">
<img class="photo" src="photos/photo_3@03-06-2020_10-00-03_thumb.jpg" style="width: 260px; height: 146px"/>
</a>
</div>
<div class="text">
<a href="" onclick="return ShowHashtag("21DC")">#21DC</a> <a href="" onclick="return ShowHashtag("CodeWithOzone")">#CodeWithOzone</a> <br><br>Day 3<br><br>Problem 1: <a href="https://leetcode.com/problems/consecutive-characters/">Consecutive characters <br></a>Problem 2: <a href="https://leetcode.com/problems/x-of-a-kind-in-a-deck-of-cards/">Deck of cards</a> <br>Problem 3: <a href="https://leetcode.com/problems/unique-number-of-occurrences/">Unique no. of occurrences </a> <br><br>Cheers Team Ozone
</div>
</div>
</div>
<div class="message service" id="message-5">
<div class="body details">
4 June 2020
</div>
</div>
<div class="message default clearfix" id="message17">
<div class="pull_left userpic_wrap">
<div class="userpic userpic1" style="width: 42px; height: 42px">
<div class="initials" style="line-height: 42px">
2
</div>
</div>
</div>
<div class="body">
<div class="pull_right date details" title="04.06.2020 10:00:03">
10:00
</div>
<div class="from_name">
21DC: Question Portal
</div>
<div class="media_wrap clearfix">
<a class="photo_wrap clearfix pull_left" href="photos/photo_4@04-06-2020_10-00-03.jpg">
<img class="photo" src="photos/photo_4@04-06-2020_10-00-03_thumb.jpg" style="width: 260px; height: 146px"/>
</a>
</div>
<div class="text">
<a href="" onclick="return ShowHashtag("21DC")">#21DC</a> <a href="" onclick="return ShowHashtag("CodeWithOzone")">#CodeWithOzone</a> <br><br>Day 4<br><br>Problem 1: <a href="https://leetcode.com/problems/min-cost-climbing-stairs/">Minimum cost climbing stairs</a> <br>Problem 2: <a href="https://leetcode.com/problems/split-a-string-in-balanced-strings/">Split a string in balanced Strings</a> <br>Problem 3: <a href="https://leetcode.com/problems/best-time-to-buy-and-sell-stock/">Best time to buy and sell stocks</a> <br><br>Cheers<br>Team Ozone
</div>
</div>
</div>
<div class="message service" id="message-6">
<div class="body details">
5 June 2020
</div>
</div>
<div class="message default clearfix" id="message18">
<div class="pull_left userpic_wrap">
<div class="userpic userpic1" style="width: 42px; height: 42px">
<div class="initials" style="line-height: 42px">
2
</div>
</div>
</div>
<div class="body">
<div class="pull_right date details" title="05.06.2020 10:00:00">
10:00
</div>
<div class="from_name">
21DC: Question Portal
</div>
<div class="media_wrap clearfix">
<a class="photo_wrap clearfix pull_left" href="photos/photo_5@05-06-2020_10-00-00.jpg">
<img class="photo" src="photos/photo_5@05-06-2020_10-00-00_thumb.jpg" style="width: 260px; height: 146px"/>
</a>
</div>
<div class="text">
<a href="" onclick="return ShowHashtag("21DC")">#21DC</a> <a href="" onclick="return ShowHashtag("CodeWithOzone")">#CodeWithOzone</a> <br><br>Day 5<br><br>Problem 1: <a href="https://leetcode.com/problems/house-robber/">House Robber</a> <br>Problem 2: <a href="https://leetcode.com/problems/backspace-string-compare/">Backspace string compare</a> <br>Problem 3: <a href="https://leetcode.com/problems/plus-one/">Plus one</a> <br><br>Cheers <br>Team Ozone
</div>
</div>
</div>
<div class="message service" id="message-7">
<div class="body details">
6 June 2020
</div>
</div>
<div class="message default clearfix" id="message19">
<div class="pull_left userpic_wrap">
<div class="userpic userpic1" style="width: 42px; height: 42px">
<div class="initials" style="line-height: 42px">
2
</div>
</div>
</div>
<div class="body">
<div class="pull_right date details" title="06.06.2020 10:00:00">
10:00
</div>
<div class="from_name">
21DC: Question Portal
</div>
<div class="media_wrap clearfix">
<a class="photo_wrap clearfix pull_left" href="photos/photo_6@06-06-2020_10-00-00.jpg">
<img class="photo" src="photos/photo_6@06-06-2020_10-00-00_thumb.jpg" style="width: 260px; height: 146px"/>
</a>
</div>
<div class="text">
<a href="" onclick="return ShowHashtag("21DC")">#21DC</a> <a href="" onclick="return ShowHashtag("CodeWithOzone")">#CodeWithOzone</a> <br><br>Day 6<br><br>Problem 1: <a href="https://leetcode.com/problems/range-sum-of-bst/">Range sum of BST</a> <br>Problem 2: <a href="https://leetcode.com/problems/linked-list-cycle/">Linked list cycle</a> <br>Problem 3: <a href="https://leetcode.com/problems/build-an-array-with-stack-operations/">Build array with stack operations</a> <br><br>Cheers <br>Team Ozone
</div>
</div>
</div>
<div class="message service" id="message-8">
<div class="body details">
7 June 2020
</div>
</div>
<div class="message default clearfix" id="message21">
<div class="pull_left userpic_wrap">
<div class="userpic userpic1" style="width: 42px; height: 42px">
<div class="initials" style="line-height: 42px">
2
</div>
</div>
</div>
<div class="body">
<div class="pull_right date details" title="07.06.2020 10:18:39">
10:18
</div>
<div class="from_name">
21DC: Question Portal
</div>
<div class="media_wrap clearfix">
<a class="photo_wrap clearfix pull_left" href="photos/photo_7@07-06-2020_10-18-39.jpg">
<img class="photo" src="photos/photo_7@07-06-2020_10-18-39_thumb.jpg" style="width: 260px; height: 146px"/>
</a>
</div>
<div class="text">
<a href="" onclick="return ShowHashtag("21DC")">#21DC</a> <a href="" onclick="return ShowHashtag("CodeWithOzone")">#CodeWithOzone</a> <br><br>Day 7<br><br>Problem 1: <a href="https://leetcode.com/problems/valid-parentheses/">Valid parenthesis</a> <br>Problem 2: <a href="https://leetcode.com/problems/assign-cookies/">Assign cookies</a> <br>Problem 3: <a href="https://leetcode.com/problems/top-k-frequent-words/">Top K words</a> <br><br>Cheers <br>Team Ozone
</div>
</div>
</div>
<div class="message service" id="message-9">
<div class="body details">
8 June 2020
</div>
</div>
<div class="message default clearfix" id="message22">
<div class="pull_left userpic_wrap">
<div class="userpic userpic1" style="width: 42px; height: 42px">
<div class="initials" style="line-height: 42px">
2
</div>
</div>
</div>
<div class="body">
<div class="pull_right date details" title="08.06.2020 10:00:00">
10:00
</div>
<div class="from_name">
21DC: Question Portal
</div>
<div class="media_wrap clearfix">
<a class="photo_wrap clearfix pull_left" href="photos/photo_8@08-06-2020_10-00-00.jpg">
<img class="photo" src="photos/photo_8@08-06-2020_10-00-00_thumb.jpg" style="width: 260px; height: 146px"/>
</a>
</div>
<div class="text">
<a href="" onclick="return ShowHashtag("21DC")">#21DC</a> <a href="" onclick="return ShowHashtag("CodeWithOzone")">#CodeWithOzone</a> <br><br>Day 8<br><br>Problem 1: <a href="https://leetcode.com/problems/number-of-matching-subsequences/">Number of matching subsequences</a> <br>Problem 2: <a href="https://leetcode.com/problems/unique-paths/">Unique Paths</a> <br>Problem 3: <a href="https://leetcode.com/problems/longest-univalue-path/">Longest univalue path</a> <br><br>Cheers <br>Team Ozone
</div>
</div>
</div>
<div class="message default clearfix" id="message23">
<div class="pull_left userpic_wrap">
<div class="userpic userpic1" style="width: 42px; height: 42px">
<div class="initials" style="line-height: 42px">
2
</div>
</div>
</div>
<div class="body">
<div class="pull_right date details" title="08.06.2020 19:53:52">
19:53
</div>
<div class="from_name">
21DC: Question Portal
</div>
<div class="text">
Heads up guys, due to some technical issues today's solutions will be delayed by 30min, they will be uploaded by 8:30PM IST. <br><br>Cheers<br>Team Ozone
</div>
</div>
</div>
<div class="message service" id="message-10">
<div class="body details">
9 June 2020
</div>
</div>
<div class="message default clearfix" id="message24">
<div class="pull_left userpic_wrap">
<div class="userpic userpic1" style="width: 42px; height: 42px">
<div class="initials" style="line-height: 42px">
2
</div>
</div>
</div>
<div class="body">
<div class="pull_right date details" title="09.06.2020 10:00:00">
10:00
</div>
<div class="from_name">
21DC: Question Portal
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<a href="" onclick="return ShowHashtag("21DC")">#21DC</a> <a href="" onclick="return ShowHashtag("CodeWithOzone")">#CodeWithOzone</a> <br><br>Day 9<br><br>Problem 1: <a href="https://leetcode.com/problems/simplified-fractions/">Simplified fractions</a> <br>Problem 2: <a href="https://leetcode.com/problems/product-of-array-except-self/">Array of product except self</a> <br>Problem 3: <a href="https://leetcode.com/problems/remove-k-digits/">Remove k digits</a> <br><br>Cheers <br>Team Ozone
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It's been over a week since we started with this project and now it's time we open our ears wide to hear from you all. Here is a short feedback form for week 1, we'd love to hear back from you.<br><br><a href="https://forms.gle/bm2LpRjNqhMmYXEz8">Feedback</a> <br><br>Cheers<br>Team Ozone
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10 June 2020
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10:00
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<a href="" onclick="return ShowHashtag("21DC")">#21DC</a> <a href="" onclick="return ShowHashtag("CodeWithOzone")">#CodeWithOzone</a> <br><br>Day 10<br><br>Problem 1: <a href="https://leetcode.com/problems/maximum-area-of-a-piece-of-cake-after-horizontal-and-vertical-cuts/">Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts</a> <br>Problem 2: <a href="https://leetcode.com/problems/intersection-of-two-arrays-ii/">Intersection of Two Arrays II</a> <br>Problem 3: <a href="https://leetcode.com/problems/partition-equal-subset-sum/">Partition Equal Subset Sum</a> <br><br>Cheers<br>Team Ozone
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We are facing some technical glitches due to which today's solutions will be delayed. We'll notify you once the solutions are uploaded.<br><br>Team Ozone
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Solutions to Problem 2 and 3 are now available, you can head over to our <a href="https://www.youtube.com/channel/UCaRKtfQE4Fns7zBIB747mHw/">YouTube channel</a> to view them.<br><br>Cheers<br>Team Ozone
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11 June 2020
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10:00
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<a href="" onclick="return ShowHashtag("21DC")">#21DC</a> <a href="" onclick="return ShowHashtag("CodeWithOzone")">#CodeWithOzone</a> <br><br>Day 11<br><br>Problem 1: <a href="https://leetcode.com/contest/leetcode-weekly-contest-7/problems/longest-palindrome/">Longest palindrome</a> <br>Problem 2: <a href="https://leetcode.com/problems/buddy-strings/">Buddy Strings</a> <br>Problem 3: <a href="https://leetcode.com/problems/design-browser-history/">Design browser history</a> <br><br>Cheers<br>Team Ozone
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We've successfully completed first 10 days of coding at 21DC with Ozone, now it's time we uplift our standards and include your feedbacks in the content we deliver. There are a few changes that you guys suggested and we are happy to incorporate them in our program. Following are the key changes that we have made as per the feedback received from you all -<br><br>1) Stepped up the difficulty levels a bit <br>2) Starting today we'd provide code for every problem in java and c++ both<br>3) We've tried to assort the problem in a unique pattern that support natural learning instincts<br>4) Started the use of Hindi in our videos to ease up the flow of ideas<br><br>We are constantly trying to improve ourselves so that we together can build a better understanding of Interview Coding.<br><br>Cheers<br>Team Ozone<br><br>Socials- <a href="http://bit.do/OzoneProject"> Youtube</a> | <a href="http://t.me/codewithozone">Telegram</a> | <a href="http://bit.do/OzoneWA">WhatsApp</a> <br><br><a href="http://github.com/OzoneProject">GitHub</a>
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12 June 2020
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<a href="" onclick="return ShowHashtag("21DC")">#21DC</a> <a href="" onclick="return ShowHashtag("CodeWithOzone")">#CodeWithOzone</a> <br><br>Day 12<br><br>Problem 1: <a href="https://leetcode.com/problems/the-k-strongest-values-in-an-array/">K strongest values in an array</a> <br>Problem 2: <a href="https://leetcode.com/problems/arithmetic-slices/">Arithmetic slices</a> <br>Problem 3: <a href="https://leetcode.com/problems/decode-string/">Decode string</a> <br><br>Cheers<br>Team Ozone
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13 June 2020
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<a href="" onclick="return ShowHashtag("21DC")">#21DC</a> <a href="" onclick="return ShowHashtag("CodeWithOzone")">#CodeWithOzone</a> <br><br>Day 13<br><br>Problem 1: <a href="https://leetcode.com/problems/pseudo-palindromic-paths-in-a-binary-tree/">Pseudo-Palindromic Paths in a Binary Tree</a> <br>Problem 2: <a href="https://leetcode.com/problems/integer-break/">Integer Break</a> <br>Problem 3: <a href="https://leetcode.com/problems/bulb-switcher-iii/">Bulb Switcher III</a> <br><br>Cheers<br>Team Ozone
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We've started a discussion group here on telegram also, if you guys want to discuss any issues with us feel free to join <a href="https://t.me/discussozone">https://t.me/discussozone</a> .
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14 June 2020
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