Go: package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
	"strings"
)

func gcd(num1, num2 int) int {
	if num2 == 0 {
		return num1
	}
	num3 := num1 % num2
	return gcd(num2, num3)
}

func lcm(num1, num2 int) int {
	if num1%num2 != 0 {
		num3 := gcd(num1, num2)
		for i := 1; ; i++ {
			check := num3 * i
			if check%num1 == 0 && check%num2 == 0 {
				return check
			}
		}
	} else {
		return num1
	}
}

func main() {
	scanner := bufio.NewScanner(os.Stdin)
	for scanner.Scan() {
		strNums := strings.Fields(scanner.Text())
		nums := []int{}
		for _, strNum := range strNums {
			num, _ := strconv.Atoi(strNum)
			nums = append(nums, num)
		}
		a := nums[0]
		b := nums[1]
		c := nums[2]
		d := nums[3]
		e := nums[4]
		f := nums[5]
		lcm := lcm(a, d)
		mulA := lcm / a
		mulD := lcm / d
		a *= mulA
		b *= mulA
		c *= mulA
		d *= mulD
		e *= mulD
		f *= mulD

		if d < 0 {
			d *= -1
			e *= -1
			f *= -1
		}

		bE := b - e
		cF := c - f
		y := float64(cF) / float64(bE)
		x := (float64(c) - (y * float64(b))) / float64(a)

		if x == 0 {
			fmt.Printf("%.3f ", 0.0)
		} else {
			fmt.Printf("%.3f ", x)
		}
		if y == 0 {
			fmt.Printf("%.3f\n", 0.0)
		} else {
			fmt.Printf("%.3f\n", y)
		}
	}
}

C++: #include<iostream>
#include<string>
#include<sstream>
using namespace std;

string toStr(int n);
string intToString(int n);

int main() {
  int a, b, c, d, e, f;

  while(cin >> a >> b >> c >> d >> e >> f) {
    a = a * 10000;
    b = b * 10000;
    c = c * 10000;
    d = d * 10000;
    e = e * 10000;
    f = f * 10000;
    
    int x, y;
    int det = a * e - b * d;

    x = ( e * c - b * f) / det;
    y = (-d * c + a * f) / det;

    cout << toStr(x) << " " << toStr(y) << endl;
  }
}

string toStr(int n) {
  int ipart = n / 10000;
  int fpart = (n - ipart * 10000) + 5;
  return intToString(ipart) + "." + intToString(fpart).substr(0, 3);
}

string intToString(int n) {
  stringstream ss;
  ss << n;
  return ss.str();
}

C++: #include<cstdio>
#include<vector>
#include<algorithm>
using namespace std;
int main(void){
	long long a, b, c, d, e, f;
	long long p, q, r;
	long long x, y, z;
	for (; scanf("%lld %lld %lld %lld %lld %lld", &a, &b, &c, &d, &e, &f) !=EOF;){
		c = c * 1000;
		f = f * 1000;
		p = (a*e) - (d*b);
		q = (c*e) - (f*b);
		x = q / p;
		p = (b*d) - (e*a);
		q = (c*d) - (f*a);
		y = q / p;
		if (x < 0){
			printf("-");
			x = -x;
		}
			printf("%lld.%03lld ", x / 1000, x % 1000);
			if (y < 0){
				printf("-");
				y = -y;
			}
		printf("%lld.%03lld\n", y / 1000, y % 1000);
	}
		return 0;
	}

C++: #include<iostream>
#include<cstdio>
using namespace std;

int main()
{
    double a,b,c,d,e,f;
    
    while(cin>>a>>b>>c>>d>>e>>f){
    
        double x=(e*c-b*f)/(e*a-b*d);
        double y=(d*c-a*f)/(d*b-a*e);
    
        printf("%.3f %.3f\n",x,y);
    }
    
    return 0;
    
}

C++: #include <stdio.h>
#include <stdlib.h>

int main(void){
	int a,b,c,d,e,f;
	a=b=c=d=e=f=0;
	float x=0.0f;
	float y=0.0f;
	while(scanf("%d %d %d %d %d %d", &a, &b, &c, &d, &e, &f) != EOF){
		x = (c*e-f*b)/(float)(a*e-b*d);
		y = (c*d-f*a)/(float)(b*d-e*a);
		x = (float)(x * 1000 + 0.5)/1000;
		y = (float)(y * 1000 + 0.5)/1000;
		printf("%.3f %.3f\n", x, y);
	}
	return 0;
}

C++: #include <iostream>
#include <stdio.h>
using namespace std;

int main()
{
    double a,b,c,d,e,f;
    while(cin>>a>>b>>c>>d>>e>>f) {
		//A*x=y
		//x=A^-1*y

		double x = (c * e + f * -b)/(a*b - d*e);
		double y = (c * -d + f * a)/(a*b - d*e);
		printf("%.3f %.3f\n",x,y);
    }
    return 0;
}

C++: #include<iostream>
#include<iomanip>
#include<cmath>
#include<algorithm>
#include<string>
#include<cctype>
#include<vector>
#include<queue>
#include<map>
using namespace std;

int main() {
	double a, b, c, d, e, f, x, y, G;

	while (cin >> a >> b >> c >> d >> e >> f) {
		//a*d-b*c=0:?§£??????
		G = 1 / (a*e - b*d);
		x = G*(e*c + (-b)*f);
		y = G*((-d)*c + a*f);
		if (fabs(x) < 1e-3) x = 0;
		if (fabs(y) < 1e-3) y = 0;
		cout << fixed << setprecision(3) << x << " " << y << endl;
	}

	return 0;
}

C++: #include<iostream>
#include<algorithm>
#include<stdio.h>
using namespace std;
int main(){
	int a,b,c,d,e,f;
	int o,p,q,r,s,t;
	float x,y;
	for(int i=0;i<2;i++){
		scanf("%d%d%d%d%d%d",&a,&b,&c,&d,&e,&f);
		o=a;p=b;q=c;r=d;s=e;t=f;
		o*=d;p*=d;q*=d;
		r*=a;s*=a;t*=a;
		//printf("%d %d %d %d %d %d \n",o,p,q,r,s,t);
		p-=s;
		q-=t;
		y=(float)(q/p);
		int g=(int)(e*y);
		g*=-1;
		x=(float)((f+g)/d);
		printf("%.3 %.3f",x,y);
	}
}

C++: #include<iostream>
#include<stdio.h>
using namespace std;
int main(){
double a,b,c,d,e,f;
double x,y;
while(cin >> a >> b >> c >> d >> e >> f){
    x = (e*c-b*f) / (a*e-b*d);
    y = (-(d*c)+a*f) / (a*e-b*d);
  printf("%1.3f %1.3f\n",x,y);
 }
}

C++: #include<cstdio>

int main(){
	double a,b,c,d,e,f,x,y;
	while(scanf("%lf %lf %lf %lf %lf %lf", &a, &b, &c, &d, &e, &f) + 1){
		x = ( e * c - b * f) / ( a * e - b * d);
		y = ( - d * c + a * f) / ( a * e - b * d);
		printf("%.4f %.4f\n", x, y);
	}
	return 0;
}

C++: #include<iostream>
#include<cstdio>
using namespace std;
int main()
{
	int s = 100000;
	int n;
	cin >> n;
	while (n--) {
		if (int(s*1.05) % 1000 == 0) {
			s = int(s*1.05);
		}
		else {
			s = int(s*1.05) + (1000 - int(s*1.05) % 1000);
		}
	}
	printf("%d\n", s);
    return 0;
}

C++: #include<iostream>
#include<iomanip>
using namespace std;

int main(){
	int a, b, c, d, e, f;
	while(cin >> a >> b >> c >> d >> e >> f){
		float detab = a*e-b*d;
		float deta = c*e-b*f;
		float detb = a*f-c*d;
		float x = deta/detab;
		float y = detb/detab;
		if(x == -0)
			x = 0;
		if(y == -0)
			y = 0;
		cout << fixed << setprecision(3);
		cout << x << " " << y << endl;
	}
}
//1 2 3 4 5 6
//2 -1 -2 -1 -1 -5
//2 -1 -3 1 -1 -3
//2 -1 -3 -9 9 27

C++: #include <iostream>
#include <iomanip>
#include <algorithm>
#include <functional>
#include <numeric>
#include <string>
#include <vector>
#include <list>
#include <iterator>

#include <cstdio>
#include <cmath>

#define DIM 2
#define EPS (5*10e-4)

typedef std::vector<double> Vec;
typedef std::vector<Vec> Mat;
typedef std::pair<Mat,Vec> Eq;

double removeMinusZero(double x){
	if ( fabs(x)< EPS ){
		return 0.0;
	}
	else {
		return x;
	}
}

int main(void){
	using namespace std;

	list<Eq> input;

	double a,b,c,d,e,f;

	cout << fixed << setprecision(3);

	while(cin >> a >> b >> c >> d >> e >> f){
		Vec m1, m2;
		m1.push_back(a);
		m1.push_back(b);
		m2.push_back(d);
		m2.push_back(e);

		Vec vec;
		vec.push_back(c);
		vec.push_back(f);

		Mat mat;
		mat.push_back(m1);
		mat.push_back(m2);

		Eq eq = make_pair(mat,vec);

		input.push_back(eq);
	}

	for(auto itr = input.begin(); itr!=input.end(); ++itr){
		auto mat = itr->first;
		auto vec = itr->second;

		Vec output(DIM);

		double det = mat[0][0] * mat[1][1] - mat[0][1] * mat[1][0];
		// std::transform(vec.begin(), vec.end(),vec.begin(), std::bind1st(multiplies<double>(),1.0/det));

		mat[0][1] = -mat[0][1];
		mat[1][0] = -mat[1][0];
		swap(mat[0][0],mat[1][1]);

		for (int i=0; i<DIM; i++){
			output[i] = inner_product(vec.begin(), vec.end(), mat[i].begin(), 0);
		}
		std::transform(output.begin(), output.end(),output.begin(), std::bind1st(multiplies<double>(),1.0/det));
		cout << removeMinusZero(output[0]) << " " << removeMinusZero(output[1]) << endl;
	}

}