7.2 (C++)

完成split函数
EXAMPLE INPUT
123 abcde 567
ds tete dfsd 567
asd te sdfs 567
EXAMPLE OUTPUT
123
abcde
567
ds
tete
dfsd
567
asd
te
sdfs
567
主程序 (不能修改)

#include "source.cpp"
#include <iostream>
#include <string>
#include <vector>
using namespace std;

void test() {
    string line;
    getline(cin, line);
    vector<string> words = split(line);
    for (int i = 0; i < words.size(); ++ i) {
        cout << words[i] << endl;
    }
}

int main() {
    test();
    test();
    test();
}

Mitte的答案

#include<vector>
#include<string>
#include<cstring>
#include<iostream>
using namespace std;
vector<string> split(string line)
{
    vector <string> word;
    for(int i=0;i<line.length();i++)
    {
        char t[20];
        memset(t,0,sizeof(t));
        for(int j=i;j<line.length();j++)
        {
            if(line[j]==' ')
            {
                i=j;
                break;
            }
            t[j-i]=line[j];
                
        }
        word.push_back(t);
    }
    return word;
}

我的答案

#include<vector>
#include <cstring>
#include<iostream>
using namespace std;
vector<string> split(string str)
{
    vector <string> word;
   const char * s=" ";
    int n = 0;
   char *token;
   token = strtok(str, s);
    
   while(token!= NULL)
   {
      word[n++]=token;
     token=strtok(NULL,s);
   }
    
   return word;
}

报错信息

In file included from main.cpp:1:0:
source.cpp: In function ‘std::vector<std::__cxx11::basic_string<char> > split(std::__cxx11::string)’:
source.cpp:11:25: error: cannot convert ‘std::__cxx11::string {aka std::__cxx11::basic_string<char>}’ to ‘char*’ for argument ‘1’ to ‘char* strtok(char*, const char*)’
    token = strtok(str, s);