I defined some variables in
the form of array but after some calculation the value of some other variables
changes without any reason. I will give you an example.Please look at the
following part of my programm:

 

#include <iostream>

#include <stdio.h>

#include <math.h>

 

using std::cout;

using std::endl;

 

int main()

{

      int i,j,k, index;

      const int
arc=6, path=4;

      double mi,delta,
dif[3],teta[3],p,q,r,demand, A[arc], B[arc],fa[2][arc],ca[2][arc], cp[path],
h[2][path], d[arc];

//Set Parameters

      A[1]=5;

      A[2]=10;

      A[3]=100;

      A[4]=10;

      A[5]=5;

      

      B[1]=0.2;

      B[2]=0.1;

      B[3]=5;

      B[4]=0.1;

      B[5]=0.2;

      demand=10;

//Set initial
soloution

      k=0;

      h[1][1]=3;

      h[1][2]=3;

      h[1][3]=4;

      

      fa[1][1]=h[1][1]+h[1][3];

      fa[1][2]=h[1][2];

      fa[1][3]=h[1][3];

      fa[1][4]=h[1][1];

      fa[1][5]=h[1][2]+h[1][3];

      printf ("Iteration 0: 

//Start FW
algorithm

      do

      {

     k=k+1;

//Compute cost
of arcs

       for
(i=1;i<6;i++)

      {

            ca[1][i]=A[i]+B[i]*fa[1][i]*fa[1][i];

      }

//Compute cost
of paths

      cp[1]=ca[1][1]+ca[1][4];

      cp[2]=ca[1][2]+ca[1][5];

      cp[3]=ca[1][1]+ca[1][3]+ca[1][5];

//Find the
sortest path

      if
((cp[1]<=cp[2])&&(cp[1]<=cp[3])) index=1;

      if
((cp[2]<=cp[1])&&(cp[2]<=cp[3])) index=2;

      if
((cp[3]<=cp[1])&&(cp[3]<=cp[2])) index=3;

      for (i=1;i<4;i++)

      {

            h[2][i]=0;

      }

//Assign all
demand to the shortest path

      h[2][index]=demand;

//Find LP path
soloution

      fa[2][1]=h[2][1]+h[2][3];

      fa[2][2]=h[2][2];

      fa[2][3]=h[2][3];

      fa[2][4]=h[2][1];

      fa[2][5]=h[2][2]+h[2][3];

...

At this point when fa[2][i]
are computed, the value of B[i] changes without any reason and if I fixed the
value of B[i] again, the value of fa[2][i] changes. I do not know what is wrong
with my programming.Could you please hel me.