#include<iostream>#include<string>#include<unordered_map>usingnamespacestd;typedefunordered_map<string,string> stringmap;typedefunordered_map<int,int> intmap;stringmapmerge(stringmap a,stringmap b){stringmaptmp(a); tmp.insert(b.begin(),b.end());returntmp; }intmain(intargc,char**argv){ str...
In anunordered_map, thekey valueis generally used to uniquely identify the element, while themapped valueis an object with the content associated to thiskey. Types ofkeyandmappedvalue may differ. Internally, the elements in theunordered_mapare not sorted in any particular order with respect to ...
In anunordered_map, thekey valueis generally used to uniquely identify the element, while themapped valueis an object with the content associated to thiskey. Types ofkeyandmappedvalue may differ. Internally, the elements in theunordered_mapare not sorted in any particular order with respect to ...
// swap (unordered_map specialization)#include <iostream>#include <string>#include <unordered_map>intmain () { std::unordered_map<std::string,std::string> first = {{"Star Wars","G. Lucas"},{"Alien","R. Scott"},{"Terminator","J. Cameron"}}, second = {{"Inception","C. Nolan"...
000,000以及N=100,000,000//分别定义MapKey=map<int,int>、hash_map<int,int>、unordered_map<int,int>//typedef map<int,int> MapKey;//采用map//typedef hash_map<int,int> MapKey;//采用hash_maptypedef unordered_map<int,int> MapKey;//采用unordered_mapintGetPidMem(pid_t pid,string&memsize)...
//typedef map<int,int> MapKey; //采用map //typedef hash_map<int,int> MapKey; //采用hash_map typedefunordered_map<int,int> MapKey;//采用unordered_map intGetPidMem(pid_t pid,string& memsize) { charfilename[1024]; snprintf(filename,sizeof(filename),"/proc/%d/status",pid); ...