CareerCup

#include "stdafx.h"
#include<stdio.h>
#include<math.h>
#include<iostream>
using namespace std;
int main()
{
int epsilon = 3;
int cntepsilon = 0;
int cntresult = 0;
int fpcnt = -1;
double x = 9;
double y = 2;
double nom = x;
double denom = y;
double finalResult = 0;
double result = x;
if (x < y) {
while (cntepsilon < epsilon && result != 0)
{
result = result * 10;
result = result - denom;
cntresult += 1;
while (result >= denom)
{
result = result - denom;
cntresult += 1;
}
finalResult = finalResult + cntresult* pow(10, fpcnt);
fpcnt = fpcnt - 1;
cntepsilon += 1;
cntresult = 0;


}
cout << finalResult << endl;

}
else if (x>y)
{
while (result >= denom)
{
result = result - denom;
cntresult += 1;

}
cout << result << endl;
finalResult = cntresult;
cout << finalResult << endl;
if (result != 0)
{
cntresult = 0;
while (cntepsilon < epsilon && result != 0)
{
result = result * 10;
result = result - denom;
cntresult += 1;
while (result >= denom)
{
result = result - denom;
cntresult += 1;
}
finalResult = finalResult + cntresult* pow(10, fpcnt);
fpcnt = fpcnt - 1;
cntepsilon += 1;
cntresult = 0;
}
}
cout << finalResult << endl;

}
else {
finalResult = 1;
}
return 0;
}

def find_x_by_y(x, y, e):
	p = 0
	q = x * y
	while abs(p-q) > e:
		m = (p + q) / 2.0
		c = (m * y) - x
		if c < 0:
			p = m
		else:
			q = m
	return p

public class DivisionToEpsilon {
	
	public static void main(String[] args){
		int epsilon = 3;
		
		double d1 = 2.223456;
		double d2 = 2.1;
		
		System.out.println(d1/d2);
		DoubleWithEpsilon doubleWithEpsilon = new DoubleWithEpsilon(epsilon);
		
		DoubleWithEpsilon result = doubleWithEpsilon.divid(d1, d2);
		
		System.out.println(result);
		
	}

}

class DoubleWithEpsilon{
	int epsilon;
	int whole;
	int fraction;
	
	public DoubleWithEpsilon(int epsilon){
		this.epsilon = epsilon;
	}
	
	public DoubleWithEpsilon(int epsilon, double doubleNumber){
		this.epsilon = epsilon;
		if(doubleNumber<1){
			this.whole=0;
		}else{
			this.whole = (int) doubleNumber;
		}
		
		int powerE=1;
		for(int i=0; i<epsilon; i++){
			powerE = powerE*10;
		}
		int powerE1 = powerE*10;
		
		double tempDouble = doubleNumber-this.whole; //get the fraction from double.
		
		int tempInt0 = (int)(tempDouble*powerE);  //get the fist epsilon digits from fraction.
		int tempInt1 = (int)(tempDouble*powerE1); // get the fist epsilon+1 digits from fraction.
		int tempInt = tempInt1-tempInt0*10;       //get last digit of tempInt1.
		
		if(tempInt<5){                            //Round fraction of original double based on tempInt 
			this.fraction = tempInt0;
		}else{
			this.fraction = tempInt0+1;
		}
		
		if(this.fraction>=powerE){
			this.fraction = 0;
			this.whole = this.whole+1;
		}
	}
	
	public DoubleWithEpsilon divid(double d1, double d2){
		
		DoubleWithEpsilon doubleWithEpsilon = new DoubleWithEpsilon(this.epsilon, d1/d2);

		return doubleWithEpsilon;
	}

	@Override
	public String toString() {
		StringBuilder sb = new StringBuilder();
		
		sb.append(this.whole).append(".");
		if(this.fraction<10){
			sb.append("00").append(this.fraction);
		}else if(this.fraction<100){
			sb.append("0").append(this.fraction);
		}else{
			sb.append(this.fraction);
		}
		
		return sb.toString();
	}
	
	
}