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Test results - Codility L04 Triangle.html
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<!DOCTYPE html>
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<h4>Session</h4>
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<b>ID:</b> <span id="ticket-id">demoK832FY-NGM</span>
</div>
<div id="timelimit-min"><b>Time limit:</b> 120 min.</div>
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<h4 id="ticket-status">
Status: closed
</h4>
<div id="ticket-create-date"><b>Created on:</b> 2014-12-19 02:39 UTC</div>
<div id="ticket-start-date"><b>Started on:</b> 2014-12-19 02:40 UTC</div>
<div id="ticket-end-date"><b>Finished on:</b> 2014-12-19 03:52 UTC</div>
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<div class="total-score" id="total-result">
<h4>Test score</h4>
<div class="help help-total-result" data-hasqtip="3"></div>
<b>93%</b>
<small>
93
out of 100 points
</small>
</div>
<table class="task-scores">
<tbody><tr>
<th class="task-col">Tasks in test</th>
<th class="partial-col">Correctness</th>
<th class="partial-col">Performance</th>
<th class="score-col">Task score</th>
</tr>
<tr>
<td class="task-col difficulty difficulty-1">
<strong>1</strong>
<img src="./Test results - Codility L04 Triangle_files/icon-type-algo-24.png" title="algo task">
<a href="https://codility.com/demo/results/demoK832FY-NGM/#task-0" title="Triangle">
Triangle
</a>
</td>
<td class="partial-col">
<div title="good" class="good ">
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<div class="filled" style="width: 90.00%"></div>
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<span class="number">90%</span>
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<td class="partial-col">
<div title="good" class="good ">
<div class="progress-bar">
<div class="filled" style="width: 100.00%"></div>
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<span class="number">100%</span>
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<td class="score-col">
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93%
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The solution is being evaluated.
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<span><span>easy</span></span>
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score:
93 of 100
</span>
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<span style="display:none" class="result">93</span>
<span style="display:none" class="max-result">100</span>
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<div class="task-opener">
1.
<a href="https://codility.com/demo/results/demoK832FY-NGM/#" id="task-0-name" class="task-opener">Triangle</a>
</div>
<span class="task-synopsis">
Determine whether a triangle can be built from a given set of edges.
</span>
</div>
</div>
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<td class="description-column">
<div class="hdr hdr-dark">Task description</div>
<div id="task-0-text">
<div id="brinza-task-description">
<p>A zero-indexed array A consisting of N integers is given. A triplet (P, Q, R) is <i>triangular</i> if 0 ≤ P < Q < R < N and:</p>
<blockquote><ul style="margin: 10px;padding: 0px;"><li>A[P] + A[Q] > A[R],</li>
<li>A[Q] + A[R] > A[P],</li>
<li>A[R] + A[P] > A[Q].</li>
</ul>
</blockquote><p>For example, consider array A such that:</p>
<p></p><pre><tt> A[0] = 10 A[1] = 2 A[2] = 5
A[3] = 1 A[4] = 8 A[5] = 20</tt></pre>
<p>Triplet (0, 2, 4) is triangular.</p>
<p>Write a function:</p>
<blockquote><p class="lang-c" style="font-family: monospace; font-size: 9pt; display: none"><tt>
int solution(int A[], int N);
</tt></p></blockquote>
<blockquote><p class="lang-cpp" style="font-family: monospace; font-size: 9pt; display: none"><tt>
int solution(vector<int> &A);
</tt></p></blockquote>
<blockquote><p class="lang-pas" style="font-family: monospace; font-size: 9pt; display: none"><tt>
function solution(A: array of longint; N: longint): longint;
</tt></p></blockquote>
<blockquote><p class="lang-java" style="font-family: monospace; font-size: 9pt; display: none"><tt>
class Solution { public int solution(int[] A); }
</tt></p></blockquote>
<blockquote><p class="lang-py" style="font-family: monospace; font-size: 9pt; display: none"><tt>
def solution(A)
</tt></p></blockquote>
<blockquote><p class="lang-php" style="font-family: monospace; font-size: 9pt; display: none"><tt>
function solution($A);
</tt></p></blockquote>
<blockquote><p class="lang-cs" style="font-family: monospace; font-size: 9pt; display: block"><tt>
class Solution { public int solution(int[] A); }
</tt></p></blockquote>
<blockquote><p class="lang-js" style="font-family: monospace; font-size: 9pt; display: none"><tt>
function solution(A);
</tt></p></blockquote>
<blockquote><p class="lang-pl" style="font-family: monospace; font-size: 9pt; display: none"><tt>
sub solution { my (@A)=@_; ... }
</tt></p></blockquote>
<blockquote><p class="lang-rb" style="font-family: monospace; font-size: 9pt; display: none"><tt>
def solution(a)
</tt></p></blockquote>
<blockquote><p class="lang-vb" style="font-family: monospace; font-size: 9pt; display: none"><tt>
Private Function solution(A As Integer()) As Integer
</tt></p></blockquote>
<blockquote><p class="lang-lua" style="font-family: monospace; font-size: 9pt; display: none"><tt>
function solution(A)
</tt></p></blockquote>
<blockquote><p class="lang-m" style="font-family: monospace; font-size: 9pt; display: none"><tt>
int solution(NSMutableArray *A);
</tt></p></blockquote>
<blockquote><p class="lang-scala" style="font-family: monospace; font-size: 9pt; display: none"><tt>
object Solution { def solution(A: Array[Int]): Int }
</tt></p></blockquote>
<blockquote><p class="lang-go" style="font-family: monospace; font-size: 9pt; display: none"><tt>
func Solution(A []int) int
</tt></p></blockquote>
<p>that, given a zero-indexed array A consisting of N integers, returns 1 if there exists a triangular triplet for this array and returns 0 otherwise. For example, given array A such that:</p>
<p></p><pre><tt> A[0] = 10 A[1] = 2 A[2] = 5
A[3] = 1 A[4] = 8 A[5] = 20</tt></pre>
<p>the function should return 1, as explained above. Given array A such that:</p>
<p></p><pre><tt> A[0] = 10 A[1] = 50 A[2] = 5
A[3] = 1</tt></pre>
<p>the function should return 0.</p>
<p>Assume that:</p>
<blockquote><ul style="margin: 10px;padding: 0px;"><li>N is an integer within the range [<span class="number">0</span>..<span class="number">100,000</span>];</li>
<li>each element of array A is an integer within the range [<span class="number">−2,147,483,648</span>..<span class="number">2,147,483,647</span>].</li>
</ul>
</blockquote><p>Complexity:</p>
<blockquote><ul style="margin: 10px;padding: 0px;"><li>expected worst-case time complexity is O(N*log(N));</li>
<li>expected worst-case space complexity is O(N), beyond input storage (not counting the storage required for input arguments).</li>
</ul>
</blockquote><p>Elements of input arrays can be modified.</p>
</div>
<div style="margin-top:5px">
<small>Copyright 2009–2014 by Codility Limited. All Rights Reserved. Unauthorized copying, publication or disclosure prohibited.</small>
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<div class="hdr hdr-dark" style="position:relative">
Solution
<div style="position:absolute;right:10px;top:4px;">
</div>
</div>
<div class="hdr">
<b>Programming language used:</b> <span class="language_used" style="font-weight: normal">C#</span>
</div>
<div class="hdr">
<div class="help help-total-time" data-hasqtip="0"></div>
<b>Total time used: 72 minutes</b>
</div>
<div class="hdr">
<div class="help help-effective-time" data-hasqtip="1"></div>
<b>Effective time used: 69 minutes</b>
</div>
<div class="hdr">
<span class="left">Notes: </span>
<div id="sol-desc-0-container">
<div id="sol-desc-0" style="display:block; text-align : left;">
<span class="value user_notes_right" style="font-weight:normal">
<i>not defined yet</i>
</span>
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Code: 03:51:52 UTC,
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verify,
result: <strong>Passed</strong>
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<a>1</a><a>2</a><a>3</a><a>4</a><a>5</a><a>6</a><a>7</a><a>8</a><a>9</a><a>10</a><a>11</a><a>12</a><a>13</a><a>14</a><a>15</a><a>16</a><a>17</a><a>18</a><a>19</a><a>20</a><a>21</a><a>22</a><a>23</a><a>24</a><a>25</a><a>26</a><a>27</a><a>28</a><a>29</a><a>30</a><a>31</a><a>32</a><a>33</a><a>34</a><a>35</a><a>36</a><a>37</a><a>38</a><a>39</a><a>40</a><a>41</a><a>42</a><a>43</a><a>44</a><a>45</a><a>46</a><a>47</a><a>48</a><a>49</a><a>50</a><a>51</a><a>52</a><a>53</a><a>54</a><a>55</a><a>56</a><a>57</a>
</div>
<div class="code-highlight">
<pre id="code-0-119"><code data-prg-lang="cs" class="language-cs hljs"><span class="line "><span class="hljs-keyword">using</span> System;</span>
<span class="line "><span class="hljs-keyword">using</span> System.Linq;</span>
<span class="line "><span class="hljs-keyword">using</span> System.Collections.Generic;</span>
<span class="line "><span class="hljs-comment">// you can also use other imports, for example:</span></span>
<span class="line "><span class="hljs-comment">// using System.Collections.Generic;</span></span>
<span class="line "></span>
<span class="line "><span class="hljs-comment">// you can use Console.WriteLine for debugging purposes, e.g.</span></span>
<span class="line "><span class="hljs-comment">// Console.WriteLine("this is a debug message");</span></span>
<span class="line "></span>
<span class="line "><span class="hljs-keyword">class</span> <span class="hljs-title">Solution</span> {</span>
<span class="line "> <span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">int</span> <span class="hljs-title">solution</span><span class="hljs-params">(<span class="hljs-keyword">int</span>[] A)</span> </span>{</span>
<span class="line "> </span>
<span class="line "> Array.Sort(A);</span>
<span class="line "> </span>
<span class="line "> <span class="hljs-keyword">int</span> start = <span class="hljs-number">0</span>;</span>
<span class="line "> <span class="hljs-keyword">for</span> (<span class="hljs-keyword">int</span> i = <span class="hljs-number">0</span>; i < A.Length; i++)</span>
<span class="line "> {</span>
<span class="line "> <span class="hljs-keyword">if</span> (A[i] > <span class="hljs-number">0</span>) <span class="hljs-comment">// no negative needs consideration.</span></span>
<span class="line "> {</span>
<span class="line "> start = i;</span>
<span class="line "> <span class="hljs-keyword">break</span>;</span>
<span class="line "> }</span>
<span class="line "> }</span>
<span class="line "> </span>
<span class="line "> <span class="hljs-comment">// bool broke = false;</span></span>
<span class="line "> </span>
<span class="line "> <span class="hljs-comment">// for (int Q = start + 1; Q < A.Length - 1; Q++)</span></span>
<span class="line "> <span class="hljs-comment">// {</span></span>
<span class="line "> <span class="hljs-comment">// for (int P = Q - 1; P >= 0; P--)</span></span>
<span class="line "> <span class="hljs-comment">// {</span></span>
<span class="line "> <span class="hljs-comment">// for (int R = Q + 1; R < A.Length; R++)</span></span>
<span class="line "> <span class="hljs-comment">// {</span></span>
<span class="line "> <span class="hljs-comment">// if (A[P] + A[Q] > A[R]) // because it is sorted, other ones are obviously going to be true.</span></span>
<span class="line "> <span class="hljs-comment">// return 1;</span></span>
<span class="line "> <span class="hljs-comment">// else // and otherwise breaks.</span></span>
<span class="line "> <span class="hljs-comment">// {</span></span>
<span class="line "> <span class="hljs-comment">// broke = true;</span></span>
<span class="line "> <span class="hljs-comment">// break;</span></span>
<span class="line "> <span class="hljs-comment">// }</span></span>
<span class="line "> <span class="hljs-comment">// }</span></span>
<span class="line "> <span class="hljs-comment">// if (broke) // smaller P would not help at all.</span></span>
<span class="line "> <span class="hljs-comment">// break;</span></span>
<span class="line "> <span class="hljs-comment">// }</span></span>
<span class="line "> <span class="hljs-comment">// }</span></span>
<span class="line "> </span>
<span class="line "> <span class="hljs-keyword">for</span> (<span class="hljs-keyword">int</span> Q = start + <span class="hljs-number">1</span>; Q < A.Length - <span class="hljs-number">1</span>; Q++)</span>
<span class="line "> {</span>
<span class="line "> <span class="hljs-keyword">if</span> (A[Q-<span class="hljs-number">1</span>] + A[Q] > A[Q + <span class="hljs-number">1</span>])</span>
<span class="line "> <span class="hljs-keyword">return</span> <span class="hljs-number">1</span>;</span>
<span class="line "> }</span>
<span class="line "> </span>
<span class="line "> <span class="hljs-keyword">return</span> <span class="hljs-number">0</span>;</span>
<span class="line "> </span>
<span class="line "> <span class="hljs-comment">// runs but O(N^3) sweet!</span></span>
<span class="line "> </span>
<span class="line "> }</span>
<span class="line ">}</span>
<span class="line "></span></code></pre>
</div>
</div>
</div>
<div class="analysis">
<div class="hdr hdr-dark">
<div class="help help-analysis" data-hasqtip="52"></div>
Analysis
<div class="clr"></div>
</div>
<table class="tests-table">
<thead>
<tr>
<th>test</th>
<th>time</th>
<th class="plot-header"></th>
<th colspan="2">result</th>
</tr>
</thead>
<thead>
<tr>
<th class="group example" colspan="4">Example tests</th>
</tr>
</thead>
<tbody>
<tr>
<td>
example
<br>
<small>example, positive answer, length=6</small>
</td>
<td align="right">0.076 s</td>
<td colspan=" 2 ">
<b>OK</b>
</td>
</tr>
<tr>
<td>
example1
<br>
<small>example, negative answer, length=4</small>
</td>
<td align="right">0.068 s</td>
<td colspan=" 2 ">
<b>OK</b>
</td>
</tr>
<tr>
<td>
example2
<br>
<small>example, positive answer</small>
</td>
<td align="right">0.076 s</td>
<td colspan=" 2 ">
<b>OK</b>
</td>
</tr>
<tr>
<td>
example_grouped
<br>
<small>example, answer is zero</small>
</td>
<td align="right">0.072 s</td>
<td colspan=" 2 ">
<b>OK</b>
</td>
</tr>
</tbody>
<tbody><tr><td colspan="4" style="padding: 0;"></td></tr>
</tbody></table>
</div>
</div></div>
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Code: 02:40:56 UTC,
c,
autosave
</div>
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<div class="line-numbers">
<a>1</a><a>2</a><a>3</a><a>4</a><a>5</a><a>6</a>
</div>
<div class="code-highlight">
<pre id="code-0-0"><code data-prg-lang="c">// you can write to stdout for debugging purposes, e.g.
// printf("this is a debug message\n");
int solution(int A[], int N) {
// write your code in C99
}
</code></pre>
</div>
</div>
</div>
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Code: 02:41:30 UTC,
cs,
autosave
</div>