std::string> hashTable; // 添加元素 hashTable[0] = "False"; hashTable[1] = "True"; // 迭代并打印 for (const auto& node : hashTable) { std::cout << "Key = " << node.first << " Value = " << node.second << std::endl; } return 0;...
classhash<std::string> { public: std::size_toperator()(conststd::stringtheKey)const { unsignedlonghashValue=0; intlength=(int)theKey.length(); for(inti=0;i<length;i++) { hashValue=hashValue*5+theKey.at(i); } returnstd::size_t(hashValue); } }; 1. 2. 3. 4. 5. 6. 7....
#include<bits/stdc++.h>usingnamespacestd;typedefunsignedlonglongull;constintN =1e6+10, M =1e5+10;constull base =163; ull p[N];voidinit(){ p[0] =1;for(inti =1;i < N;i++) p[i] = p[i-1] * base; }structHashString{ string s; ull* hash;intlen;voidinput(){ cin >> s...
The GCC C++11 hashing function used by the std::unordered_map<> template container hash table is excellent. The GCC C++11 hashing functions used for unordered_map (a hash table template) and unordered_set (a hash set template) appear to be as follows. This is a partial answer to the qu...
StringHash.h 1#include <StdAfx.h> 2#include <string> 3 4usingnamespacestd; 5 6#pragmaonce 7 8#defineMAXTABLELEN 1024//默认哈希索引表大小 9/// 10//哈希索引表定义 11typedefstruct_HASHTABLE 12{ 13longnHashA; 14longnHashB; 15boolbExists; 16}HASHTABLE...
本文整理汇总了C++中std_string::c_str方法的典型用法代码示例。如果您正苦于以下问题:C++ std_string::c_str方法的具体用法?C++ std_string::c_str怎么用?C++ std_string::c_str使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类std_string的用法示例。
making a string hash is pretty simple, boost::hash<std::string> string_hash; std::size_t h = string_hash("Hash me"); newer versions of C++ have an equivalent with std::hash Share Follow answered Nov 11, 2011 at 13:47 Megatron 2,91144 gold badges4141 silver badges6060 bronze ba...
#include<string> usingnamespacestd; constintMAXN=9973;//哈希表长度 constintlen=30;//字符串的最大长度 intHtable[MAX]; charch[MAX][len];//存储关键字的字符串 unsignedlongHash(char*key) { unsignedlongh=0; while(*key) { h=(h<<4)+*key++; ...
#include<iostream>#include<unordered_map>usingnamespacestd;intn;string s1,s2;intmain(){//写全局会和库函数中的hash冲突: 解决法:可以写heap 或者map(映射)unordered_map<int,string>hash;//映射的下一个(取模) 等于s2则 s1 < s2, 先判断是不是相等 ,hash[0]="Hunter",hash[1]="Bear",hash[2...