float num final final

#pragma hdrstop
#pragma argsused

#ifdef _WIN32
#include <tchar.h>
#else
  typedef char _TCHAR;
  #define _tmain main
#endif

#include <stdio.h>
#include <iostream>
#include <conio.h>
#include <math.h>

using namespace std;

int _tmain(int argc, _TCHAR* argv[])
{
	float b;
	cin >>b;
	cout << "b : "<<b<< endl;
	char str[51]={'\0'};
	float c = 1.4013e-45;
	if (b<c) {
		str[0]='0';
		cout <<"str : "<< str;
		getch();
		return 0;
	}
		if (b==10) {
			str[0]='1';
			str[1]='0';
			cout <<"str : "<< str;

			getch();
			return 0;
		}
	  if (b==1) {
			str[0]='1';
			cout <<"str : "<< str;

			getch();
			return 0;
		}

	//cout << "c : "<<c<< endl;
	//cout << "str : "<<str<< endl;

	float f = b;
	int i=0;

	if ((f>10)||(f<1)) do
	{
		i++;
		f= b>1?f/10:f*10;
		//cout << "f  "<<i<<" : "<<f<< endl;

	}while ((f>=10)||(f<1)) ;
	f += 5.1e-6;
	if(f>=10){ i--; f/=10; }
	//cout << "i "<<i<< endl;
	str[0]=char((int)f%10+'0');
	cout << "str[0] "  <<str[0]<< endl;
	str[1]='.';
	for (int j= 2; j < 7; j++) {
		f*=10;
		//str[j]=char((int)f%10+'0');
		//cout << "str["<<j<<"] : "<<str[j]<< endl;
	}
	int x=(int) round(f);
	cout << "x : "<<x<< endl;
	for (int j = 6; j>1; j--) {

		str[j]=char(x%10+'0');   cout << "str["<<j<<"] : "<<str[j]<< endl;
		x/=10;
		//cout << "x : "<<x<< endl;
	}
	/*int j;
	for (j= 6; j >1; j--)
	{
		if (str[j]=='0') {
			str[j]='\0';
		}
		else break;
	}
	if (j==1)
	{
		str[1]='\0';
		j--;
	}
	if (i>=6)
	{
		str[j+1]='e';
		if (b>1) {
			str[j+2]='+';
		}
		else str[j+2]='-';
		str[j+3]=char(i/10+'0');
		str[j+4]=char(i%10+'0');
	}
					*/
	int pofe = 0;
	int point = 0;
	if (i<6) {
		if (b>1) {
			for (int h = 2; h <=i+1; h++) {
				str[h-1]=str[h]; cout << "str[" << h-1 << "] : " << str[h-1] << endl;
			}
			str[i+1]='.';  point = i+1;
			pofe=6;
		}
		else {

				str[1]=str[0];
				for (int h = 6; h >0; h--)
				{
					str[h+i]=str[h];
				}
				str[0]='0';
				str[1]='.'; point = 1;
				for (int h = 2; h < 1+i; h++)
				{
					str[h]='0';
				}
				pofe=6+i;

		}
	}
	else {
			pofe=6; point = 1;
		  /*	str[7]='e';
			if (b>1) {
				str[8]='+';
			}
			else str[j+2]='-';
			str[9]=char(i/10+'0');
			str[10]=char(i%10+'0'); */


	}
	int j;
	for (j= pofe; j >point; j--)
	{
		if (str[j]=='0') {
			str[j]='\0';
		}
		else break;
	}
	if (j==point)
	{
		str[point]='\0';
		j--;
	}
    if (i>=6)
	{
		str[j+1]='e';
		if (b>1) {
			str[j+2]='+';
		}
		else str[j+2]='-';
		str[j+3]=char(i/10+'0');
		str[j+4]=char(i%10+'0');
	}



	cout <<  "str "  <<str<< endl;
	//cout << "f : "<<f<< endl;
	getch();
	getch();
	return 0;
}