题解 | #单词识别#

#include <iostream>
#include <string>
#include <map>
#include <vector>
using namespace std;
int main() {
    string str;
    getline(cin, str);
    //去掉大写 和 最后的逗号
    str[0] += 32;
    str[str.size()-1] = ' ';

    size_t dest = 0;
    size_t cur = str.find(' ');
    //在vector中插入字符
    vector<string> vs;
    while(cur < str.size()-1)
    {
        string tmp = str.substr(dest,cur-dest);
        dest = cur+1;
        cur = str.find(' ',dest);
        vs.push_back(tmp);
    }
    vs.push_back(str.substr(dest,cur-dest));
    //把vector的字符串插入map容器中
    map<string,int> mp;
    for(auto ch : vs)
    {
        mp[ch]++;
    }

    //打印map
    auto begin = mp.begin();
    while(begin != mp.end())
    {
        cout<<begin->first<<":"<<begin->second<<endl;
        begin++;
    }
    return 0;
}
// 64 位输出请用 printf("%lld")