提示有问题，恶心，恶心恶心

#include <iostream>
#include <string> 
#include <algorithm>

using namespace std;
int main() 
{
	string s;
	getline(cin,s);
	int n = s.size();
	for (int left = 0, right = 0; right < n;)
	{
		//  "   abcdef"
		if (s[right] >= 'a' && s[right] <= 'z')
		{
			left = right; // 保证了 left为单纯的左端点 
			while(right < n && s[right] >= 'a' && s[right] <= 'z') right++;

			string tmp = s.substr(left, right - left); // substr是开始位置加长度
			reverse(tmp.begin(), tmp.end());
			cout << tmp.c_str() << endl;
		}
		else
			right++;		
	}
	
	return 0;
}