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| #include<iostream.h>
#include<string.h>
#include<stdio.h>
#include<stdlib.h>
#include<conio.h>
#define word unsigned int
int i, j, n, p, xn, xk;
int flag[11];
word c[11][11], l[11];
char s[80], path[80][11];
int min(int n)
{
int i, result;
for(i=0;i<n;i++)
if(!(flag[i])) result=i;
for(i=0;i<n;i++)
if((l[result]>l[i])&&(!flag[i])) result=i;
return result;
}
word minim(word x, word y)
{
if(x<y) return x;
return y;
}
void main()
{
cout<<"Vvedite kolichestvo tochek: ";
cin>>n;
for(i=0;i<n;i++)
for(j=0;j<n;j++) c[i][j]=0;
for(i=0;i<n;i++)
for(j=i+1;j<n;j++)
{
cout<<"Vvedite rasstoyanie ot x"<<i+1<<" do x"<<j+1<<": ";
cin>>c[i][j];
}
cout<<" ";
for(i=0;i<n;i++) cout<<" X"<<i+1;
cout<<endl<<endl;
for(i=0;i<n;i++)
{
printf("X%d",i+1);
for(j=0;j<n;j++)
{
printf("%6d",c[i][j]);
c[j][i]=c[i][j];
}
printf("\n\n");
}
for(i=0;i<n;i++)
for(j=0;j<n;j++)
if(c[i][j]==0) c[i][j]=65535;
cout<<"Vvedite nachalnuy tochku: ";
cin>>xn;
cout<<"Vvedite konechnuy tochku: ";
cin>>xk;
xk--;
xn--;
if(xn==xk)
{
cout<<"Nachalnaya I konechnaya tochki sovpadayt."<<endl;
getch();
return;
}
for(i=0;i<n;i++)
{
flag[i]=0;
l[i]=65535;
}
l[xn]=0;
flag[xn]=1;
p=xn;
itoa(xn+1,s,10);
for(i=1;i<=n;i++)
{
strcpy(path[i],"X");
strcat(path[i],s);
}
do
{
for(i=0;i<n;i++)
if((c[p][i]!=65535)&&(!flag[i])&&(i!=p))
{
if(l[i]>l[p]+c[p][i])
{
itoa(i+1,s,10);
strcpy(path[i+1],path[p+1]);
strcat(path[i+1],"-X");
strcat(path[i+1],s);
}
l[i]=minim(l[i],l[p]+c[p][i]);
}
p=min(n);
flag[p]=1;
}
while(p!=xk);
if(l[p]!=65535)
{
cout<<"Put: "<<path[p+1]<<endl;
cout<<"Dlina puti: "<<l[p]<<endl;
}
else
cout<<"takogo puti ne syshestvuet!"<<endl;
getch();
}
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