View Code of Problem 58

#include<cstdio>
#include<iostream>
#include<algorithm>
#include<cmath>
#include<cstring>
#include<vector>
#include<map>
#include<string>
#include<set>
using namespace std;
vector<string> split(const string& str, const string& pattern)
    {
        vector<string> ret;
        if(pattern.empty()) return ret;
        size_t start=0,index=str.find_first_of(pattern,0);
        while(index!=str.npos)
        {
            if(start!=index)
                ret.push_back(str.substr(start,index-start));
            start=index+1;
            index=str.find_first_of(pattern,start);
        }
        if(!str.substr(start).empty())
            ret.push_back(str.substr(start));
        return ret;
    }

int main(void){
	string str;
	getline(cin,str);
	vector<string> v = split(str," ");
	cout<<v.size();
}