1 | /* -*- C++ -*- |
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2 | * |
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3 | * This file is a part of LEMON, a generic C++ optimization library |
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4 | * |
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5 | * Copyright (C) 2003-2006 |
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6 | * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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7 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
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8 | * |
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9 | * Permission to use, modify and distribute this software is granted |
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10 | * provided that this copyright notice appears in all copies. For |
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11 | * precise terms see the accompanying LICENSE file. |
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12 | * |
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13 | * This software is provided "AS IS" with no warranty of any kind, |
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14 | * express or implied, and with no claim as to its suitability for any |
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15 | * purpose. |
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16 | * |
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17 | */ |
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18 | |
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19 | #define NDEBUG |
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20 | |
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21 | #include <lemon/time_measure.h> |
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22 | #include <lemon/smart_graph.h> |
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23 | #include <lemon/graph_utils.h> |
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24 | #include <lemon/maps.h> |
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25 | #include <lemon/error.h> |
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26 | |
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27 | #include <lemon/radix_sort.h> |
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28 | |
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29 | #include <vector> |
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30 | #include <algorithm> |
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31 | #include <cmath> |
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32 | |
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33 | using namespace std; |
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34 | using namespace lemon; |
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35 | |
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36 | void testRadixSort() { |
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37 | int n = 10000000; |
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38 | vector<int> data(n); |
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39 | for (int i = 0; i < n; ++i) { |
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40 | data[i] = (int)(1000 * (rand() / (RAND_MAX + 1.0))) - 500; |
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41 | } |
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42 | radixSort(data.begin(), data.end()); |
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43 | } |
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44 | |
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45 | |
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46 | void testCounterSort() { |
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47 | int n = 10000000; |
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48 | vector<int> data(n); |
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49 | for (int i = 0; i < n; ++i) { |
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50 | data[i] = (int)(1000 * (rand() / (RAND_MAX + 1.0))) - 500; |
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51 | } |
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52 | counterSort(data.begin(), data.end()); |
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53 | } |
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54 | |
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55 | void testSort() { |
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56 | int n = 10000000; |
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57 | vector<int> data(n); |
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58 | for (int i = 0; i < n; ++i) { |
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59 | data[i] = (int)(1000 * (rand() / (RAND_MAX + 1.0))) - 500; |
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60 | } |
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61 | sort(data.begin(), data.end()); |
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62 | } |
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63 | |
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64 | void testStableSort() { |
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65 | int n = 10000000; |
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66 | vector<int> data(n); |
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67 | for (int i = 0; i < n; ++i) { |
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68 | data[i] = (int)(1000 * (rand() / (RAND_MAX + 1.0))) - 500; |
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69 | } |
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70 | stable_sort(data.begin(), data.end()); |
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71 | } |
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72 | |
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73 | void testSorts() { |
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74 | { |
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75 | int n = 10000000; |
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76 | vector<int> data(n); |
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77 | } |
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78 | cout << "Radix sort: " << runningTimeTest(testRadixSort, 60) << endl; |
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79 | cout << "Counter sort: " << runningTimeTest(testCounterSort, 60) << endl; |
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80 | cout << "Standard sort: " << runningTimeTest(testSort, 60) << endl; |
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81 | cout << "Stable sort: " << runningTimeTest(testStableSort, 60) << endl; |
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82 | } |
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83 | |
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84 | |
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85 | int main() { |
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86 | testSorts(); |
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87 | return 0; |
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88 | } |
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