习题10.12

// 1012.cpp : 定义控制台应用程序的入口点。//#include "stdafx.h"#include <map> #include <string> #include <iostream> #include <utility>using namespace std; int _tmain(int argc, _TCHAR* argv[]){map<string,int> word_count;string word;pair< map<string, int>::iterator, bool > ret;cout << "Enter words:";while (cin >> word){ret = word_count.insert( make_pair(word,1) );if(!ret.second)++ret.first->second;}cout << "Output the counter for every word" << endl; for (map<string,int>::iterator iter = word_count.begin();iter != word_count.end();iter++) cout << iter->first << " " << iter->second << endl; return 0;}