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<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="favicon.ico" rel="shortcut icon" type="image/x-icon" />
<title>A2OJ Category: Segment Tree</title>
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<b>
<u>
Segment Tree problems</u></b></font><br/><br/>
<table>
<tr>
<th></th>
<th>Problem Name</th>
<th>Online Judge</th>
<th>Year</th>
<th>Contest</th>
<th>Difficulty Level</th>
</tr>
<tr>
<td>1</td>
<td><a href="http://www.spoj.com/problems/BRCKTS/" target="_blank">Brackets</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>2</td>
<td><a href="http://www.spoj.com/problems/BYTESE2/" target="_blank">The Great Ball</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>3</td>
<td><a href="http://www.spoj.com/problems/GSS1/" target="_blank">Can you answer these queries I</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>4</td>
<td><a href="http://www.spoj.com/problems/GSS3/" target="_blank">Can you answer these queries III</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>5</td>
<td><a href="http://www.spoj.com/problems/GSS5/" target="_blank">Can you answer these queries V</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>6</td>
<td><a href="http://www.spoj.com/problems/KGSS/" target="_blank">Maximum Sum</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>7</td>
<td><a href="http://www.spoj.com/problems/POSTERS/" target="_blank">Election Posters</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>8</td>
<td><a href="http://www.spoj.com/problems/NICEDAY/" target="_blank">The day of the competitors</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>9</td>
<td><a href="http://www.spoj.com/problems/MKTHNUM/" target="_blank">K-th Number</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>10</td>
<td><a href="http://www.spoj.com/problems/YODANESS/" target="_blank">Yodaness Level</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>11</td>
<td><a href="http://www.spoj.com/problems/ANDROUND/" target="_blank">AND Rounds</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>12</td>
<td><a href="http://www.spoj.com/problems/MULTQ3/" target="_blank">Multiples of 3</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>13</td>
<td><a href="http://www.spoj.com/problems/LITE/" target="_blank">Light Switching</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>14</td>
<td><a href="http://www.spoj.com/problems/DQUERY/" target="_blank">D-query</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>15</td>
<td><a href="http://www.spoj.com/problems/FREQUENT/" target="_blank">Frequent values</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>16</td>
<td><a href="http://www.spoj.com/problems/GSS2/" target="_blank">Can you answer these queries II</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>17</td>
<td><a href="http://www.spoj.com/problems/SEGSQRSS/" target="_blank">Sum of Squares with Segment Tree</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>18</td>
<td><a href="http://www.spoj.com/problems/HORRIBLE/" target="_blank">Horrible Queries</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>19</td>
<td><a href="http://www.spoj.com/problems/KQUERY/" target="_blank">K-query</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>20</td>
<td><a href="http://www.spoj.com/problems/HISTOGRA/" target="_blank">Largest Rectangle in a Histogram</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>21</td>
<td><a href="http://codeforces.com/problemset/problem/339/D" target="_blank">Xenia and Bit Operations</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #197 (Div. 2)</td>
<td>1</td>
</tr>
<tr>
<td>22</td>
<td><a href="http://www.spoj.com/problems/ORDERS/" target="_blank">Ordering the Soldiers</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>23</td>
<td><a href="https://uva.onlinejudge.org/index.php?option=onlinejudge&page=show_problem&problem=2176" target="_blank">Frequent values</a></td>
<td>UVA</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>24</td>
<td><a href="http://www.spoj.com/problems/PRATA/" target="_blank">Roti Prata</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>25</td>
<td><a href="http://www.spoj.com/problems/RPLN/" target="_blank">Negative Score</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>26</td>
<td><a href="http://www.spoj.com/problems/GSS4/" target="_blank">Can you answer these queries IV</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>27</td>
<td><a href="http://www.spoj.com/problems/QTREE3/" target="_blank">Query on a tree again!</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>28</td>
<td><a href="http://www.spoj.com/problems/ORDERSET/" target="_blank">Order statistic set</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>29</td>
<td><a href="https://icpcarchive.ecs.baylor.edu/index.php?option=onlinejudge&page=show_problem&problem=4150" target="_blank">Interval Product</a></td>
<td>Live Archive</td>
<td>2012</td>
<td>Latin America</td>
<td>1</td>
</tr>
<tr>
<td>30</td>
<td><a href="http://www.codechef.com/problems/CONFLIP" target="_blank">Coin Flip</a></td>
<td>CodeChef</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>31</td>
<td><a href="http://www.spoj.com/problems/FINDSR/" target="_blank">Find String Roots</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>32</td>
<td><a href="http://www.spoj.com/problems/COT/" target="_blank">Count on a tree</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>33</td>
<td><a href="http://www.codechef.com/problems/FLIPCOIN" target="_blank">Flipping Coins</a></td>
<td>CodeChef</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>34</td>
<td><a href="http://www.spoj.com/problems/INVCNT/" target="_blank">Inversion Count</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>1</td>
</tr>
<tr>
<td>35</td>
<td><a href="http://www.spoj.com/problems/HELPR2D2/" target="_blank">Help R2-D2!</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>2</td>
</tr>
<tr>
<td>36</td>
<td><a href="http://www.spoj.com/problems/RACETIME/" target="_blank">Race Against Time</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>2</td>
</tr>
<tr>
<td>37</td>
<td><a href="http://www.spoj.com/problems/GSS6/" target="_blank">Can you answer these queries VI</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>2</td>
</tr>
<tr>
<td>38</td>
<td><a href="https://icpcarchive.ecs.baylor.edu/index.php?option=onlinejudge&page=show_problem&problem=3137" target="_blank">Mummy Madness</a></td>
<td>Live Archive</td>
<td>2011</td>
<td>World Finals - Orlando</td>
<td>2</td>
</tr>
<tr>
<td>39</td>
<td><a href="http://www.spoj.com/problems/CNTPRIME/" target="_blank">Counting Primes </a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>2</td>
</tr>
<tr>
<td>40</td>
<td><a href="http://www.spoj.com/problems/PATULJCI/" target="_blank">Snow White and the N dwarfs</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>2</td>
</tr>
<tr>
<td>41</td>
<td><a href="http://codeforces.com/problemset/problem/295/A" target="_blank">Greg and Array</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #179 (Div. 1) & Codeforces Round #179 (Div. 2)</td>
<td>2</td>
</tr>
<tr>
<td>42</td>
<td><a href="https://uva.onlinejudge.org/index.php?option=onlinejudge&page=show_problem&problem=2397" target="_blank">Ahoy, Pirates!</a></td>
<td>UVA</td>
<td></td>
<td></td>
<td>2</td>
</tr>
<tr>
<td>43</td>
<td><a href="https://uva.onlinejudge.org/index.php?option=onlinejudge&page=show_problem&problem=3977" target="_blank">Interval Product</a></td>
<td>UVA</td>
<td></td>
<td></td>
<td>2</td>
</tr>
<tr>
<td>44</td>
<td><a href="http://www.spoj.com/problems/COURAGE/" target="_blank">Living with Courage</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>2</td>
</tr>
<tr>
<td>45</td>
<td><a href="http://acm.tju.edu.cn/toj/showp2913.html" target="_blank">Frequent values</a></td>
<td>TJU</td>
<td></td>
<td></td>
<td>2</td>
</tr>
<tr>
<td>46</td>
<td><a href="http://acm.tju.edu.cn/toj/showp3148.html" target="_blank">Light Switching</a></td>
<td>TJU</td>
<td></td>
<td></td>
<td>2</td>
</tr>
<tr>
<td>47</td>
<td><a href="https://uva.onlinejudge.org/index.php?option=onlinejudge&page=show_problem&problem=3238" target="_blank">Potentiometers</a></td>
<td>UVA</td>
<td></td>
<td></td>
<td>2</td>
</tr>
<tr>
<td>48</td>
<td><a href="http://www.spoj.com/problems/WINDVANE/" target="_blank">WIND VANE</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>2</td>
</tr>
<tr>
<td>49</td>
<td><a href="https://uva.onlinejudge.org/index.php?option=onlinejudge&page=show_problem&problem=4663" target="_blank">Handball</a></td>
<td>UVA</td>
<td></td>
<td></td>
<td>2</td>
</tr>
<tr>
<td>50</td>
<td><a href="http://www.spoj.com/problems/QTREE4/" target="_blank">Query on a tree IV</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>2</td>
</tr>
<tr>
<td>51</td>
<td><a href="http://www.spoj.com/problems/QTREE5/" target="_blank">Query on a tree V</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>2</td>
</tr>
<tr>
<td>52</td>
<td><a href="http://www.spoj.com/problems/BRCKTS2/" target="_blank">Brackets II</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>2</td>
</tr>
<tr>
<td>53</td>
<td><a href="http://www.spoj.com/problems/GSS7/" target="_blank">Can you answer these queries VII</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>2</td>
</tr>
<tr>
<td>54</td>
<td><a href="http://www.codechef.com/problems/CHEFD" target="_blank">Chef and medium problem 2</a></td>
<td>CodeChef</td>
<td></td>
<td></td>
<td>2</td>
</tr>
<tr>
<td>55</td>
<td><a href="http://www.spoj.com/problems/HEAPULM/" target="_blank">Binary Search Heap Construction</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>3</td>
</tr>
<tr>
<td>56</td>
<td><a href="http://www.spoj.com/problems/DPEQN/" target="_blank">Congruence Equation</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>3</td>
</tr>
<tr>
<td>57</td>
<td><a href="http://www.spoj.com/problems/TEMPLEQ/" target="_blank">Temple Queues</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>3</td>
</tr>
<tr>
<td>58</td>
<td><a href="http://www.spoj.com/problems/IOPC1207/" target="_blank">GM plants</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>3</td>
</tr>
<tr>
<td>59</td>
<td><a href="http://www.spoj.com/problems/CASHIER/" target="_blank">Blue Mary Needs Help Again</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>3</td>
</tr>
<tr>
<td>60</td>
<td><a href="http://www.spoj.com/problems/XXXXXXXX/" target="_blank">Sum of Distinct Numbers</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>3</td>
</tr>
<tr>
<td>61</td>
<td><a href="http://acm.timus.ru/problem.aspx?space=1&num=1846" target="_blank">GCD 2010</a></td>
<td>Timus</td>
<td></td>
<td></td>
<td>3</td>
</tr>
<tr>
<td>62</td>
<td><a href="http://codeforces.com/problemset/problem/272/C" target="_blank">Dima and Staircase</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #167 (Div. 2) & Codeforces Round #167 (Div. 1)</td>
<td>3</td>
</tr>
<tr>
<td>63</td>
<td><a href="http://www.spoj.com/problems/SALMAN/" target="_blank">Salary Management</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>3</td>
</tr>
<tr>
<td>64</td>
<td><a href="http://codeforces.com/problemset/problem/380/C" target="_blank">Sereja and Brackets</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #223 (Div. 1) & Codeforces Round #223 (Div. 2)</td>
<td>3</td>
</tr>
<tr>
<td>65</td>
<td><a href="http://www.spoj.com/problems/QTREE6/" target="_blank">Query on a tree VI</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>3</td>
</tr>
<tr>
<td>66</td>
<td><a href="http://codeforces.com/problemset/problem/482/B" target="_blank">Interesting Array</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #275 (Div. 1) & Codeforces Round #275 (Div. 2)</td>
<td>3</td>
</tr>
<tr>
<td>67</td>
<td><a href="http://www.codechef.com/problems/ANUGCD" target="_blank">Maximum number, GCD condition</a></td>
<td>CodeChef</td>
<td></td>
<td></td>
<td>3</td>
</tr>
<tr>
<td>68</td>
<td><a href="http://www.codechef.com/problems/XRQRS" target="_blank">Xor Queries</a></td>
<td>CodeChef</td>
<td></td>
<td></td>
<td>3</td>
</tr>
<tr>
<td>69</td>
<td><a href="http://www.spoj.com/problems/KQUERY2/" target="_blank">K-query II</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>3</td>
</tr>
<tr>
<td>70</td>
<td><a href="http://codeforces.com/problemset/problem/220/B" target="_blank">Little Elephant and Array</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #136 (Div. 1) & Codeforces Round #136 (Div. 2)</td>
<td>3</td>
</tr>
<tr>
<td>71</td>
<td><a href="http://acm.tju.edu.cn/toj/showp3440.html" target="_blank">Multiply Game</a></td>
<td>TJU</td>
<td></td>
<td></td>
<td>3</td>
</tr>
<tr>
<td>72</td>
<td><a href="http://www.codechef.com/problems/FRBSUM" target="_blank">ForbiddenSum</a></td>
<td>CodeChef</td>
<td></td>
<td></td>
<td>3</td>
</tr>
<tr>
<td>73</td>
<td><a href="http://codeforces.com/problemset/problem/459/D" target="_blank">Pashmak and Parmida's problem</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #261 (Div. 2)</td>
<td>3</td>
</tr>
<tr>
<td>74</td>
<td><a href="http://codeforces.com/problemset/problem/495/B" target="_blank">Modular Equations</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #282 (Div. 2)</td>
<td>3</td>
</tr>
<tr>
<td>75</td>
<td><a href="http://codeforces.com/problemset/problem/722/C" target="_blank">Destroying Array</a></td>
<td>Codeforces</td>
<td></td>
<td>Intel Code Challenge Elimination Round (Div. 1 + Div. 2, combined)</td>
<td>3</td>
</tr>
<tr>
<td>76</td>
<td><a href="https://uva.onlinejudge.org/index.php?option=onlinejudge&page=show_problem&problem=2325" target="_blank">Stern-Brocot Tree</a></td>
<td>UVA</td>
<td></td>
<td></td>
<td>3</td>
</tr>
<tr>
<td>77</td>
<td><a href="https://icpcarchive.ecs.baylor.edu/index.php?option=onlinejudge&page=show_problem&problem=1048" target="_blank">Squares</a></td>
<td>Live Archive</td>
<td>2004</td>
<td>North America - Rocky Mountain</td>
<td>3</td>
</tr>
<tr>
<td>78</td>
<td><a href="https://www.urionlinejudge.com.br/judge/en/problems/view/1301" target="_blank">Interval Product</a></td>
<td>URI</td>
<td></td>
<td></td>
<td>3</td>
</tr>
<tr>
<td>79</td>
<td><a href="http://www.spoj.com/problems/LGLOVE/" target="_blank">LCM GCD Love</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>4</td>
</tr>
<tr>
<td>80</td>
<td><a href="http://www.spoj.com/problems/VBOSS/" target="_blank">Who is The Boss</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>4</td>
</tr>
<tr>
<td>81</td>
<td><a href="http://www.spoj.com/problems/SEQ1/" target="_blank">01 Sequence</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>4</td>
</tr>
<tr>
<td>82</td>
<td><a href="http://www.spoj.com/problems/SUMSUM/" target="_blank">Enjoy Sum with Operations</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>4</td>
</tr>
<tr>
<td>83</td>
<td><a href="http://www.spoj.com/problems/DCEPC11I/" target="_blank">Impossible Boss</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>4</td>
</tr>
<tr>
<td>84</td>
<td><a href="http://codeforces.com/problemset/problem/383/C" target="_blank">Propagating tree</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #225 (Div. 1) & Codeforces Round #225 (Div. 2)</td>
<td>4</td>
</tr>
<tr>
<td>85</td>
<td><a href="http://codeforces.com/problemset/problem/242/E" target="_blank">XOR on Segment</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #149 (Div. 2)</td>
<td>4</td>
</tr>
<tr>
<td>86</td>
<td><a href="https://uva.onlinejudge.org/index.php?option=onlinejudge&page=show_problem&problem=1850" target="_blank">Lucky Number</a></td>
<td>UVA</td>
<td></td>
<td></td>
<td>4</td>
</tr>
<tr>
<td>87</td>
<td><a href="http://www.spoj.com/problems/QTREE7/" target="_blank">Query on a tree VII</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>4</td>
</tr>
<tr>
<td>88</td>
<td><a href="http://www.codechef.com/problems/TROOT" target="_blank">Roots of a Tree</a></td>
<td>CodeChef</td>
<td></td>
<td></td>
<td>4</td>
</tr>
<tr>
<td>89</td>
<td><a href="https://icpcarchive.ecs.baylor.edu/index.php?option=onlinejudge&page=show_problem&problem=2745" target="_blank">Brute-force Algorithm</a></td>
<td>Live Archive</td>
<td>2009</td>
<td>Asia - Shanghai</td>
<td>4</td>
</tr>
<tr>
<td>90</td>
<td><a href="http://acm.timus.ru/problem.aspx?space=1&num=1987" target="_blank">Nested Segments</a></td>
<td>Timus</td>
<td></td>
<td></td>
<td>4</td>
</tr>
<tr>
<td>91</td>
<td><a href="https://uva.onlinejudge.org/index.php?option=onlinejudge&page=show_problem&problem=3673" target="_blank">SKYLINE</a></td>
<td>UVA</td>
<td></td>
<td></td>
<td>4</td>
</tr>
<tr>
<td>92</td>
<td><a href="http://codeforces.com/problemset/problem/52/C" target="_blank">Circular RMQ</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Testing Round #1</td>
<td>4</td>
</tr>
<tr>
<td>93</td>
<td><a href="http://codeforces.com/problemset/problem/629/D" target="_blank">Babaei and Birthday Cake</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #343 (Div. 2)</td>
<td>4</td>
</tr>
<tr>
<td>94</td>
<td><a href="http://codeforces.com/problemset/problem/61/E" target="_blank">Enemy is weak</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Beta Round #57 (Div. 2)</td>
<td>4</td>
</tr>
<tr>
<td>95</td>
<td><a href="http://codeforces.com/problemset/problem/474/F" target="_blank">Ant colony</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #271 (Div. 2)</td>
<td>4</td>
</tr>
<tr>
<td>96</td>
<td><a href="http://codeforces.com/problemset/problem/311/A" target="_blank">The Closest Pair</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #185 (Div. 1) & Codeforces Round #185 (Div. 2)</td>
<td>4</td>
</tr>
<tr>
<td>97</td>
<td><a href="http://www.codechef.com/problems/MINXOR" target="_blank">XOR Minimization</a></td>
<td>CodeChef</td>
<td></td>
<td></td>
<td>4</td>
</tr>
<tr>
<td>98</td>
<td><a href="http://codeforces.com/problemset/problem/847/B" target="_blank">Preparing for Merge Sort</a></td>
<td>Codeforces</td>
<td></td>
<td>2017-2018 ACM-ICPC, NEERC, Southern Subregional Contest, qualification stage (Online Mirror, ACM-ICPC Rules, Teams Preferred)</td>
<td>4</td>
</tr>
<tr>
<td>99</td>
<td><a href="http://codeforces.com/problemset/problem/914/D" target="_blank">Bash and a Tough Math Puzzle</a></td>
<td>Codeforces</td>
<td></td>
<td>Codecraft-18 and Codeforces Round #458 (Div. 1 + Div. 2, combined)</td>
<td>4</td>
</tr>
<tr>
<td>100</td>
<td><a href="https://uva.onlinejudge.org/index.php?option=onlinejudge&page=show_problem&problem=3867" target="_blank">Rip Van Winkle's Code</a></td>
<td>UVA</td>
<td></td>
<td></td>
<td>5</td>
</tr>
<tr>
<td>101</td>
<td><a href="http://codeforces.com/problemset/problem/292/E" target="_blank">Copying Data</a></td>
<td>Codeforces</td>
<td></td>
<td>Croc Champ 2013 - Round 1</td>
<td>5</td>
</tr>
<tr>
<td>102</td>
<td><a href="https://uva.onlinejudge.org/index.php?option=onlinejudge&page=show_problem&problem=3141" target="_blank">``Dynamic'' Inversion</a></td>
<td>UVA</td>
<td></td>
<td></td>
<td>5</td>
</tr>
<tr>
<td>103</td>
<td><a href="http://www.codechef.com/problems/QRECT" target="_blank">Rectangle Query</a></td>
<td>CodeChef</td>
<td></td>
<td></td>
<td>5</td>
</tr>
<tr>
<td>104</td>
<td><a href="http://codeforces.com/problemset/problem/438/D" target="_blank">The Child and Sequence</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #250 (Div. 1)</td>
<td>5</td>
</tr>
<tr>
<td>105</td>
<td><a href="http://www.codechef.com/problems/FUNAGP" target="_blank">Fun with AGp</a></td>
<td>CodeChef</td>
<td></td>
<td></td>
<td>5</td>
</tr>
<tr>
<td>106</td>
<td><a href="http://codeforces.com/problemset/problem/558/E" target="_blank">A Simple Task</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #312 (Div. 2)</td>
<td>5</td>
</tr>
<tr>
<td>107</td>
<td><a href="http://codeforces.com/problemset/problem/501/D" target="_blank">Misha and Permutations Summation</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #285 (Div. 2) & Codeforces Round #285 (Div. 1)</td>
<td>5</td>
</tr>
<tr>
<td>108</td>
<td><a href="http://codeforces.com/problemset/problem/474/E" target="_blank">Pillars</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #271 (Div. 2)</td>
<td>5</td>
</tr>
<tr>
<td>109</td>
<td><a href="http://codeforces.com/problemset/problem/343/D" target="_blank">Water Tree</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #200 (Div. 1)</td>
<td>5</td>
</tr>
<tr>
<td>110</td>
<td><a href="http://codeforces.com/problemset/problem/375/D" target="_blank">Tree and Queries</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #221 (Div. 1)</td>
<td>5</td>
</tr>
<tr>
<td>111</td>
<td><a href="http://codeforces.com/problemset/problem/830/B" target="_blank">Cards Sorting</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #424 (Div. 1, rated, based on VK Cup Finals) & Codeforces Round #424 (Div. 2, rated, based on VK Cup Finals)</td>
<td>5</td>
</tr>
<tr>
<td>112</td>
<td><a href="http://codeforces.com/problemset/problem/755/D" target="_blank">PolandBall and Polygon</a></td>
<td>Codeforces</td>
<td></td>
<td>8VC Venture Cup 2017 - Elimination Round</td>
<td>5</td>
</tr>
<tr>
<td>113</td>
<td><a href="http://codeforces.com/problemset/problem/514/D" target="_blank">R2D2 and Droid Army</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #291 (Div. 2)</td>
<td>5</td>
</tr>
<tr>
<td>114</td>
<td><a href="http://codeforces.com/problemset/problem/703/D" target="_blank">Mishka and Interesting sum</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #365 (Div. 2)</td>
<td>5</td>
</tr>
<tr>
<td>115</td>
<td><a href="http://codeforces.com/problemset/problem/627/B" target="_blank">Factory Repairs</a></td>
<td>Codeforces</td>
<td></td>
<td>8VC Venture Cup 2016 - Final Round</td>
<td>5</td>
</tr>
<tr>
<td>116</td>
<td><a href="http://codeforces.com/problemset/problem/877/E" target="_blank">Danil and a Part-time Job</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #442 (Div. 2)</td>
<td>5</td>
</tr>
<tr>
<td>117</td>
<td><a href="http://codeforces.com/problemset/problem/920/F" target="_blank">SUM and REPLACE</a></td>
<td>Codeforces</td>
<td></td>
<td>Educational Codeforces Round 37 (Rated for Div. 2)</td>
<td>5</td>
</tr>
<tr>
<td>118</td>
<td><a href="http://www.spoj.com/problems/HILO/" target="_blank">High and Low</a></td>
<td>SPOJ</td>
<td></td>
<td></td>
<td>6</td>
</tr>
<tr>
<td>119</td>
<td><a href="http://codeforces.com/problemset/problem/396/C" target="_blank">On Changing Tree</a></td>
<td>Codeforces</td>
<td></td>
<td>Codeforces Round #232 (Div. 1) & Codeforces Round #232 (Div. 2)</td>
<td>6</td>
</tr>
<tr>