C :

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

int main()
{
	double x1,y1,x2,y2,s=0,t;
	int m;
	scanf("%*d%*d");
	while(scanf("%lf%lf%lf%lf",&x1,&y1,&x2,&y2)!=EOF)
		s+=sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2));
	t=s/20000*2;
	m=(t-(int)t)*60+0.5;
	if(m==60)
		printf("%02d:00\n",(int)t+1);
	else
		printf("%02d:%02d\n",(int)t,m);
	return 0;
}

C++ :

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

int main()
{
	double x1,y1,x2,y2,s=0,t;
	int m;
	scanf("%*d%*d");
	while(scanf("%lf%lf%lf%lf",&x1,&y1,&x2,&y2)!=EOF)
		s+=sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2));
	t=s/20000*2;
	m=(t-(int)t)*60+0.5;
	if(m==60)
		printf("%02d:00\n",(int)t+1);
	else
		printf("%02d:%02d\n",(int)t,m);
	return 0;
}

Pascal :

var a,b,x1,x2,y1,y2:longint;s:real;
begin
 readln(a,b);
 while not eof do
  begin
  readln(x1,y1,x2,y2);
  s:=s+sqrt(sqr(x1-x2)+sqr(y1-y2))/1000;
  end;
 s:=s/10;
 if (s<10)and(s>1) then
  if frac(s)*60>=10 then
   writeln('0',trunc(s),':',frac(s)*60:0:0)else
   writeln('0',trunc(s),':0',frac(s)*60:0:0)
 else if s>10 then
  if frac(s)*60>=10 then
   writeln(trunc(s),':',frac(s)*60:0:0)else
   writeln(trunc(s),':0',frac(s)*60:0:0)else
  if s*60>=10 then
   writeln('00:',s*60:0:0)else
   writeln('00:0',s*60:0:0)
end.

Java :

import java.util.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		int x = in.nextInt();
		int y = in.nextInt();
		double sum = 0;
		while (in.hasNextInt()) {
			int x1 = in.nextInt();
			int y1 = in.nextInt();
			int x2 = in.nextInt();
			int y2 = in.nextInt();
			sum += Math.sqrt(Math.pow(x2 - x1, 2) + Math.pow(y2 - y1, 2));
		}
		double time = sum * 2 / 20000;
		int hour = (int) sum * 2 / 20000;
		int minutes = (int) ((time - hour) * 60 + 0.5);
		String strHour = null, strMinutes = null;
		if (hour < 10)
			strHour = "0" + hour;
		else
			strHour = "" + hour;
		if (minutes < 10)
			strMinutes = "0" + minutes;
		else
			strMinutes = "" + minutes;
		System.out.printf(strHour + ":" + strMinutes);
	}
}