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47 lines
1.2 KiB
47 lines
1.2 KiB
8 months ago
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/**
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* File: hash_map.cpp
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* Created Time: 2022-12-14
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* Author: msk397 (machangxinq@gmail.com)
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*/
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#include "../utils/common.hpp"
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/* Driver Code */
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int main() {
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/* 初始化雜湊表 */
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unordered_map<int, string> map;
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/* 新增操作 */
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// 在雜湊表中新增鍵值對 (key, value)
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map[12836] = "小哈";
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map[15937] = "小囉";
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map[16750] = "小算";
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map[13276] = "小法";
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map[10583] = "小鴨";
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cout << "\n新增完成後，雜湊表為\nKey -> Value" << endl;
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printHashMap(map);
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/* 查詢操作 */
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// 向雜湊表中輸入鍵 key ，得到值 value
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string name = map[15937];
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cout << "\n輸入學號 15937 ，查詢到姓名 " << name << endl;
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/* 刪除操作 */
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// 在雜湊表中刪除鍵值對 (key, value)
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map.erase(10583);
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cout << "\n刪除 10583 後，雜湊表為\nKey -> Value" << endl;
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printHashMap(map);
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/* 走訪雜湊表 */
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cout << "\n走訪鍵值對 Key->Value" << endl;
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for (auto kv : map) {
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cout << kv.first << " -> " << kv.second << endl;
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}
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cout << "\n使用迭代器走訪 Key->Value" << endl;
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for (auto iter = map.begin(); iter != map.end(); iter++) {
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cout << iter->first << "->" << iter->second << endl;
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}
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return 0;
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}
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