46 lines
1.0 KiB
C++
46 lines
1.0 KiB
C++
//
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// Created by light on 19-12-16.
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//
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#include <algorithm> // std::sort
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#include <functional> // std::less/greater/hash
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#include <iostream> // std::cout/endl
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#include <string> // std::string
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#include <vector> // std::vector
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#include "../container1/output_container.h"
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using namespace std;
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int main()
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{
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// 初始数组
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vector<int> v{13, 6, 4, 11, 29};
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cout << v << endl;
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// 从小到大排序
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sort(v.begin(), v.end());
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cout << v << endl;
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// 从大到小排序
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sort(v.begin(), v.end(),
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greater<int>());
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cout << v << endl;
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cout << hex;
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auto hp = hash<int*>();
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cout << "hash(nullptr) = "
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<< hp(nullptr) << endl;
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cout << "hash(v.data()) = "
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<< hp(v.data()) << endl;
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cout << "v.data() = "
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<< static_cast<void*>(v.data())
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<< endl;
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auto hs = hash<string>();
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cout << "hash(\"hello\") = "
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<< hs(string("hello")) << endl;
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cout << "hash(\"hellp\") = "
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<< hs(string("hellp")) << endl;
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} |