#include "stdafx.h"
#include "iostream.h"
#include "windows.h"
#include "winnls.h"
#include "string"

using namespace std;

#pragma comment(lib, "kernel32.lib")

int main(int argc, char* argv[])
{
	if (argc != 2)
	{
		return 1;
	}

	char * text = argv[1];
	int cchWideChar = MultiByteToWideChar(CP_ACP,0,text,strlen(text),NULL,0) + 1;
	wchar_t * lpcwStr = new wchar_t[cchWideChar];
	ZeroMemory(lpcwStr, sizeof(wchar_t) * cchWideChar);
	MultiByteToWideChar(CP_ACP,0,text,strlen(text),lpcwStr,cchWideChar);

	cchWideChar = WideCharToMultiByte(CP_UTF8,NULL,lpcwStr,-1,NULL,0,NULL,FALSE);
	char * lpMultiByteStr = new char[cchWideChar];
	WideCharToMultiByte(CP_UTF8,NULL,lpcwStr,-1,lpMultiByteStr,cchWideChar,NULL,FALSE);
	for (int i = 0; i < strlen(lpMultiByteStr); i++)
	{
		int byte = lpMultiByteStr[i];
		byte = byte >=0 ? byte : 256 + byte;
		cout << '%' << hex << byte;
	}
	cout << endl;
	delete lpcwStr;
	delete lpMultiByteStr;
	return 0;
}

#include "stdafx.h"
#include "iostream.h"
#include "atlbase.h"

int main(int argc, char* argv[])
{
	if (argc != 2)
	{
		return 1;
	}

	USES_CONVERSION;
	wchar_t * lpcwStr = A2W(argv[1]);

	int cchWideChar = WideCharToMultiByte(CP_UTF8,NULL,lpcwStr,-1,NULL,0,NULL,FALSE);
	char * lpMultiByteStr = new char[cchWideChar];
	WideCharToMultiByte(CP_UTF8,NULL,lpcwStr,-1,lpMultiByteStr,cchWideChar,NULL,FALSE);

	for (unsigned int i = 0; i < strlen(lpMultiByteStr); i++)
	{
		char c = lpMultiByteStr[i];
		if (c >= 'a' && c <= 'z'
			|| c >='A' && c <= 'Z'
			|| c >= '0' && c <= '9'
			|| c == '/'
			|| c == ':'
			|| c == '-'
			|| c == '_'
			|| c == '.'
			|| c == '*'
			|| c == '?'
			|| c == '&'
			|| c == '=')
		{
			cout << c;
		} else if (c == ' ')
		{
			cout << '+';
		} else
		{
			cout << '%' << hex << (int) (unsigned char) c;
		}
	}
	cout << endl;

	delete lpMultiByteStr;
	return 0;
}