鉄道６ - 経済統計練習帳

var x=new Array();
var y=new Array();
var number;
var number_line;
var a_line=new Array();
var b_line=new Array();
var d_line=new Array();
var trip=new Array();
var number_trip;
 
function sample(){
 
faststep();    
 
gotrip();
 
paint();
 
 
 
}
 
 
 
 
function gotrip(){
 
trip[1]=fast();
number_trip=1;
var mode=0;
while(mode<40){       
var n=search(trip[number_trip]);  
var chx=check(n);        
if(chx<50)number_trip=number_trip+1;
if(chx<50)trip[number_trip]=n;    
if(chx>50)mode=100;
}    
 
}
 
 
function check(delta){
 
var s,ch;
ch=0;
for(s=1;s<number_trip+1;s++){
if(trip[s]==delta)ch=100;    
}
 
 
 
    return ch;
    }
 
 
 
function search(delta){
 
 
        var sx,s;
        var z=new Array();
        sx=0;
 
        for(s=1;s<number_line+1;s++){   
        if(a_line[s]==delta)sx=sx+1; 
        if(a_line[s]==delta)z[sx]=b_line[s];
 
        }
 
        for(s=1;s<number_line+1;s++){
 
        if(b_line[s]==delta)sx=sx+1; 
        if(b_line[s]==delta)z[sx]=a_line[s];
        }
 
        var c=sx;
 
    var c1=c*Math.random();
    var c2=Math.floor(c1)+1;
    var c3=z[c2];
 
 
 
 
 
        return c3;
 
 
    }
 
 
 
 
function fast(){
 
var m1=number*Math.random();
var m2=Math.floor(m1)+1;
 
return m2;
    }
 
function paint(){
 
var sub=new svgpaint();
 
str="<svg width=\"500\" height=\"500\">";
 
for(s=1;s<number_trip;s++){    
s1=trip[s];
s2=trip[s+1];    
str=str+sub.line(50*x[s1],50*y[s1],50*x[s2],50*y[s2],4,"red");
}
 
str=str+"</svg>";
 
$("#memo").html(str);   
 
}
 
function faststep(){
 
var s,sx,tx,delta;    
 
tx=0;
for(s=1;s<11;s++){
for(sx=1;sx<11;sx++){
tx=tx+1;
x[tx]=sx;
y[tx]=s;
}}
 
number=tx;
 
number_line=0;    
 
for(delta=1;delta<101;delta++){
changex(delta);
}
 
for(delta=1;delta<101;delta++){
changey(delta);
}
 
 
 
 
}
 
function changex(delta){
 
var x1=x[delta]+1;
var y1=y[delta];
var sp=0;   
 
var s,h;    
for(s=1;s<number+1;s++){
h=0;
if(x[s]==x1)h=h+1;
if(y[s]==y1)h=h+1;    
if(h==2)sp=s;
}
 
var ch;    
ch=0;    
for(s=1;s<number_line+1;s++){
h=0;
if(a_line[s]==delta)h=h+1;
if(b_line[s]==sp)h=h+1;    
if(h==2)ch=100;
}    
 
for(s=1;s<number_line+1;s++){
h=0;
if(b_line[s]==delta)h=h+1;
if(a_line[s]==sp)h=h+1;    
if(h==2)ch=100;
}      
 
 
if(sp<1)ch=100;    
if(ch<50)number_line=number_line+1;
if(ch<50)a_line[number_line]=delta;
if(ch<50)b_line[number_line]=sp;        
if(ch<50)d_line[number_line]=1; 
 
 
 
 
}
 
function changey(delta){
 
var x1=x[delta];
var y1=y[delta]+1;
var sp=0;   
 
var s,h;    
for(s=1;s<number+1;s++){
h=0;
if(x[s]==x1)h=h+1;
if(y[s]==y1)h=h+1;    
if(h==2)sp=s;
}
 
var ch;    
ch=0;    
for(s=1;s<number_line+1;s++){
h=0;
if(a_line[s]==delta)h=h+1;
if(b_line[s]==sp)h=h+1;    
if(h==2)ch=100;
}    
 
for(s=1;s<number_line+1;s++){
h=0;
if(b_line[s]==delta)h=h+1;
if(a_line[s]==sp)h=h+1;    
if(h==2)ch=100;
}      
 
 
if(sp<1)ch=100;    
if(ch<50)number_line=number_line+1;
if(ch<50)a_line[number_line]=delta;
if(ch<50)b_line[number_line]=sp;        
if(ch<50)d_line[number_line]=1; 
 
}