feat: std::vector DeDuplication
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XMuli
92
DeDuplication/Unique/Unique.cpp
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92
DeDuplication/Unique/Unique.cpp
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// Unique.cpp : This file contains the 'main' function. Program execution begins and ends there.
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//
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#include <iostream>
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#include <string>
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#include <algorithm>
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#include <vector>
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#include <set>
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using namespace std;
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/* <20><>Ӧ<EFBFBD>̳<EFBFBD>
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* STL <20>и<EFBFBD> vector ȥ<>ص<EFBFBD><D8B5><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>: https://xmuli.blog.csdn.net/article/details/126322011
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* STL <20><> std::set <20><><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD>ṹ<EFBFBD><E1B9B9><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><F3A3ACB6><EFBFBD><EFBFBD>ϸ<EFBFBD><CFB8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ıȽϺ<C8BD><CFBA><EFBFBD>: https://xmuli.blog.csdn.net/article/details/126354597
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*/
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struct MyData
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{
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wstring name;
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wstring md5;
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// <20><>ʽһ<CABD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> < <20><><EFBFBD><EFBFBD>
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//bool operator<(const MyData& d) const noexcept {
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// return md5 < d.md5;
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//}
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};
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// <20><>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD>ṹ<EFBFBD><E1B9B9><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD><CDA3>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD>ȽϺ<C8BD><CFBA><EFBFBD> _Pr <20><><EFBFBD><EFBFBD><EFBFBD>β<EFBFBD><CEB2>õķ<C3B5>ʽ<EFBFBD><CABD>
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bool cmpSort(const MyData& d1, const MyData& d2) {
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// Simple example
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return d1.md5 < d2.md5;
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// Complex sample
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//if (d1.md5 != d2.md5)
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// return d1.md5 < d2.md5;
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//else
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// return d1.name < d2.name;
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};
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// <20><>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD>֣<EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Lambda <20><><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD>ijЩ<C4B3><D0A9><EFBFBD><EFBFBD><EFBFBD>㷨<EFBFBD>л<EFBFBD>ʧЧ<CAA7><D0A7>
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auto cmpSortLambda = [](const MyData& d1, const MyData& d2) {
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return d1.md5 < d2.md5;
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};
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// <20><>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԡ<EFBFBD><D4A1><EFBFBD><EFBFBD>£<EFBFBD><C2A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD>Եģ<D4B5><C4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˴<EFBFBD><CBB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD>
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struct cmpSortObj
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{
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bool operator()(const MyData& d1, const MyData& d2) const {
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return d1.md5 < d2.md5;
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}
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};
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// ************* std::unique <20><><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD>ȽϺ<C8BD><CFBA><EFBFBD> *************
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bool cmpUnique(const MyData& d1, const MyData& d2) {
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return d1.md5 == d2.md5; // <20><><EFBFBD>ϸ<EFBFBD><CFB8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD><C8A3><EFBFBD><EFBFBD>ԴﵽĿ<EFB5BD>꣬<EFBFBD><EAA3AC><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>й©
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//return d1.md5 == d2.md5 && d1.name == d2.name; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͱ<EFBFBD><CDB1>룬<EFBFBD><EBA3AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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};
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int main()
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{
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vector<MyData> vec = { { L"a1.exe", L"B9204B6362A65C248950D5A41F341DCC"},
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{ L"a2.exe", L"B9204B6362A65C248950D5A41F341DCC"},
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{ L"b1.exe", L"C96D1AA5D314954417C28A645ED72665"},
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{ L"b2.exe", L"C96D1AA5D314954417C28A645ED72665"} };
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wcout.imbue(locale("", LC_CTYPE));
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wcout << L"----------<2D><><EFBFBD><EFBFBD>ǰ--------" << endl;
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for (const auto& it : vec)
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wcout << L"[it.name]" << it.name << L"[it.md5]" << it.md5 << endl;
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// ************* <20><>һ<EFBFBD><D2BB>vector, sort + unique *************
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//sort(vec.begin(), vec.end(), cmpSort);
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//auto ite = std::unique(vec.begin(), vec.end(), cmpUnique);
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//vec.erase(ite, vec.end());
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// ************* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>vector + set<65><74><EFBFBD>ֶ<EFBFBD><D6B6><EFBFBD>ֵ<EFBFBD><D6B5> *************
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//set<MyData, cmpSortObj> s; // "<22><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>"<22><><EFBFBD><EFBFBD> set <20><><EFBFBD><EFBFBD> --> OK
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set<MyData, decltype(cmpSort)*> s(&cmpSort); // "<22><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD> + decltype"<22><><EFBFBD><EFBFBD> set <20><><EFBFBD><EFBFBD> --> OK: <20><><EFBFBD>롢<EFBFBD><EBA1A2><EFBFBD>гɹ<D0B3><C9B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD>ɹ<EFBFBD>
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//set<MyData, decltype(cmpSort)*> s; // --> Error: <20><><EFBFBD>롢<EFBFBD><EBA1A2><EFBFBD>гɹ<D0B3><C9B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ի<EFBFBD>ʧ<EFBFBD><CAA7>
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for (unsigned i = 0; i < vec.size(); ++i)
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s.insert(vec[i]); // <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD><D0BF><EFBFBD>֤<EFBFBD><D6A4><EFBFBD>洴<EFBFBD><E6B4B4> std::set <20>Ľ<EFBFBD><C4BD><EFBFBD>
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vec.assign(s.begin(), s.end());
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// ************* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>vector + set<65><74><EFBFBD><EFBFBD><EFBFBD>캯<EFBFBD><ECBAAF><EFBFBD><EFBFBD> *************
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// Ч<>ʲ<EFBFBD><CAB2>硺<EFBFBD><E7A1BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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wcout << L"----------<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>--------" << endl;
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for (const auto& it : vec)
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wcout << L"[it.name]" << it.name << L"[it.md5]" << it.md5 << endl;
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return 0;
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}
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