Go: package main

import (
        "fmt"
        "bufio"
        "os"
        "math"
)

func main() {
        var a, b, c, d, e, f float64
        sc := bufio.NewScanner(os.Stdin)
        for sc.Scan() {
                fmt.Sscanf(sc.Text(), "%f %f %f %f %f %f", &a, &b, &c, &d, &e, &f)

                det := a*e - b*d
                x := (e*c - b*f) / det
                y := (a*f - c*d) / det
                if x == 0.0 {
                        x = math.Abs(x)
                }
                if y == 0.0 {
                        y = math.Abs(y)
                }
                fmt.Printf("%.3f %.3f\n", x, y)
        }
}

C++: #include <bits/stdc++.h>

using namespace std;

int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  cout << fixed << setprecision(12);
  double a, b, c, d, e, f, x, y;
  while (cin >> a >> b >> c >> d >> e >> f) {
    /*
      x = (b * f - e * c) / (b * d - a * e);
      y = (a * f - d * c) / (b * d - a * e);
    */
    x = (c * e - b * f) / (a * e - b * d);
    y = (a * f - c * d) / (a * e - b * d);
    if (!x) x = 0;
    if (!y) y = 0;
    cout << x << ' ' << y << '\n';
  }
  return 0;
}

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

using namespace std;

int main(int argc, char **argv)
{
	double a, b, c, d, e, f, tmp;
	
	while((cin >> a >> b >> c >> d >> e >> f)){
		tmp = (a*e-b*d);
		printf("%f %f\n", ((e*c-b*f)/tmp), ((a*f-d*c)/tmp));
	}
	
	return 0;
}

C++: #include <iostream>
#include <cstdio>

using namespace std;

int main()
{
    int a, b, c, d, e, f;
    double x, y;
    while(scanf("%d %d %d %d %d %d", &a, &b, &c, &d, &e, &f) == 6)
    {
        y = (double) (a*f - c*d)/(a*e - b*d);
        x = (double) (c - b*y)/a;
        printf("%.3f %.3f\n", x, y);
    }
    return 0;
}

C++: #include <iostream>
using namespace std;
int main(){
	int a,b,c,d,e,f;
	while(cin >> a >> b >> c >> d >> e >> f){
		double x = double(c*e-f*b)/double(a*e-d*b);
		double y = double(c*d-f*a)/double(b*d-a*e);
   printf("%.3lf %.3lf\n",x,y);
	}
}

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

using namespace std;

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

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

C++: #include<iostream>
#include<stdio.h>
#include<iomanip>
using namespace std;
int main(){
	float a,b,c,d,e,f,x,y;
	while(cin>>a>>b>>c>>d>>e>>f){
	y=(c*d-a*f)/(b*d-e*a);
	x=(c-y*b)/a;
	cout<<fixed;
	cout<<setprecision(3)<<x<<" "<<y<<endl;
	}
	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){
		double x = double(c*e-f*b)/double(a*e-d*b);
		double y = double(c*a-f*d)/double(b*d-a*e);
		cout << fixed << setprecision(3) << x << " " << y << endl;
	}
}

C++: #include<iostream>
#define REP(i,n) for(int i=1;i<=n;i++)
using namespace std;

#define N 10

int main()
{
    int t;
    while(cin >> t)
    {
        int ans = 0;
        for(int i=1;i<=9;i++)for(int j=1;j<=9;j++)for(int k=1;k<=9;k++)for(int l=1;l<=9;l++)if((i+j+k+l)==t)ans++;

        cout << ans << endl;
    }

    return 0;
}

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

int main()
{
	int a, b, c, d, e, f;
	double x, y;
	while (cin >> a >> b >> c >> d >> e >> f) {
		x = (c*e - b*f) / (a*e - b*d);
		y = (a*f - c*d) / (a*e - b*d);
		cout << fixed
			<< setprecision(3)
			<< x<<""<<y<<endl;
	}

	return 0;
}

C++: #include <iostream>
#include <cstdio>
using namespace std;
void calc(double x1, double y1, double a, double x2, double y2, double b)
{
	double d1 = x2;
	double d2 = x1;
	double xx1 = d1 * x1;
	double xy1 = d1 * y1;
	double a1 = d1 * a;
	double xx2 = d2 * x2;
	double xy2 = d2 * y2;
	double b1 = d2 * b;
	double y = xy1 - xy2;
	double c = a1 - b1;
	y = c / y;


	d1 = y2;
	d2 = y1;
	xx1 = d1 * x1;
	xy1 = d1 * y1;
	a1 = d1 * a;
	xx2 = d2 * x2;
	xy2 = d2 * y2;
	b1 = d2 * b;
	double x = xx1 - xx2;
	c = a1 - b1;
	x = c / x;
	if (x == 0)
	{
		x = 0;
	}
	if (y == 0)
	{
		y = 0;
	}
	printf("%.3lf %.3lf\n", x, y);
}
int main()
{
	int x1, y1, a, x2, y2, b;

	while(scanf_s("%d %d %d %d %d %d", &x1, &y1, &a, &x2, &y2, &b) != EOF)
	{
		calc(x1, y1, a, x2, y2, b);
	}

		
	return 0;
}

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

int main(){
	float a, b, c, d, e, f, x, y;
	while(cin >> a >> b >> c >> d >> e >> f){
		x = (b * f - c * e) / (b * d - a * e);
		y = (c - a * x) / b;
	}
	if(x > 0) {
		x += 0.0005;
	}
	else(x < 0){
		x -= 0.0005;
	}
	if(y > 0){
		y += 0.0005;
	}
	else(y < 0){
		y -= 0.0005;
	}
	cout << fixed << setprecision(3) << x << ' ' << y << endl;
	return 0;
}

C++: #include<stdio.h>
int main(void)
{
	int b,a,e,d,f,i,c;
	float y,x;
	while(scanf("%d %d %d %d %d %d",&a,&b,&c,&d,&e,&f)!=EOF)  {
			y=(c*d-a*f)/(b*d-a*e);
			x=(c-(b*y))/a;
		if(x<0.0000 && x>-0.0001){
			x=0;
		}
		if(y<0.000&&y>-0.0001){
			y=0;
		}	
		printf("%.3f %.3f\n",x,y);
	}
	return 0;
}

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

int main(){
 double x,y;
 double a,b,c,d,e,f;
 while(!cin.eof()){
   cin >> a >> b >> c >> d >> e >> f ;

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

 }
}

C++: #include<iostream>
#include<stdio.h>
using namespace std;
int main()
{
  int a,b,c,d,e,f;
  while(cin >> a >> b >> c >> d >> e >>f){
    double x,y;
    x=(e*c-b*f)/(a*e-b*d);
    y=(a*f-d*c)/(a*e-b*d);
    printf("%.3f %.3f\n",x, y);   
  }
  
}

C++: #include<iostream>
#include<iomanip>
using namespace std;
int main(void){
    double a{},b{},c{},d{},e{},f{},x{},y{};
    while(cin>>a>>b>>c>>d>>e>>f){
        x=(c*e-b*f)/(a*e-b*d);
        y=(a*f-c*d)/(a*e-b*d);
        if(x==-0.0)x=0.0;
        if(y==-0.0)y=0.0;
        cout<<fixed<<setprecision(3)<<x<<' '<<y<<endl;
    }
    return 0;
}

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

int main(){
    	int a, b, c, d, e, f;
	double x, y;
	while((cin>>a>>b>>c>>d>>e>>f)){
		x= (double)(1.0/(a*e-b*d))*(e*c-b*f);
		y= (double)(1.0/(a*e-b*d))*(-d*c+a*f);
		printf("%.3f %.3f\n", x, y);
	}
	return 0;
}

C++: #include<cstdio>
#include<iostream>
#include<algorithm>
#include<vector>
#include<set>
#include<string>
#include<functional>
#include<queue>
#include<math.h>
#define INF 999999

using namespace std;


int main()
{
	
	double a, b, c;
	double 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);
		if (x == 0)x = 0;
		if (y == 0)y = 0;
		
		printf("%.3f %.3f\n", x,y);
	}

	return 0;
}

C++: #include <iostream>
using namespace std;
int main() {
  int a, b, c, d, e, f;
  while (cin >> a >> b >> c >> d >> e >> f) {
    printf("%.3f %.3f, (a * f - c * d) / (a * e - b * d), (b * f - c * e) / (b * d - a * e));
  }
  return 0;
}

C++: #include <iostream>
#include <stdio.h>
using namespace std;
int main(){
	double a, b, c, d, e, f;
	double x, y;
	double g, h, i;

	while(cin >> a >> b >> c >> d >> e >> f){

		g = a * d;
		h = g / a;
		i = g / d;

		y = (h * c - i * f) / (h * b - i * e);

		x = ((h * c) - (h * b * y)) / (h * a);

		if(x == -0){
			x = -0 * (-1);
		}
		else if(y == -0){
			y = -0 * (-1);
		}

		printf("%.3lf %.3lf\n", x, y);

	}



}

C++: #include<iostream>

using namespace std;

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

C++: #include <iostream>
#include <iomanip>
#include <math.h>

using namespace std;

int main(void) {
	while(1) {
		int a, b, c, d, e, f;
		double x, y;
		cin >> a >> b >> c >> d >> e >> f;
		if(cin.eof()) break;

		x = (double)(e * c - b * f) / (a * e - b * d);
		y = (double)(a * f - d * c) / (a * e - b * d);
		if(x == 0) { x = 0; }
		if(y == 0) { y = 0; }

		cout << fixed << setprecision(3) << x << " " << y << endl;
	}
	return 0;
}