学步园

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
using namespace std;

class JustifyText{
public:
	vector<string> format( vector<string> text ){
	
		/*find the max length*/
		int max_length = 0;
		for(int i=0; i<text.size(); ++i )
			if( text[i].length() > max_length )
				max_length = text[i].length();


		vector<string> result = text;

		/*padding every string*/
		for(int i=0; i<result.size(); ++i)
			if( result[i].length() < max_length ){
				reverse( result[i].begin(), result[i].end() );
				for( int k=result[i].length(); k<max_length; ++k )
					result[i].push_back(' ');
				reverse( result[i].begin(), result[i].end() );
			}

		return result;
	}

private:

};