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As the title suggests I need to write the class of a graph object. It is required that I write a function that prints the graph determine if the graph has conex components,what are the cinex components, if the graph has cycles, and to determine the shortest and longest road between two nodes

This what i have so far:

```
#ifndef _GRAF_H_
#define _GRAF_H_
#include<iostream>
#include<conio.h>
using namespace std;
const int MATR_DIM=500;//constant for the size of the matrix
class CGraf
{
int matr_adi[MATR_DIM][MATR_DIM]; //Adjacency matrix
int nr_vertices; //The actual number of vertices
public:
CGraf();
CGraf(int _nr_vertices)// class constructor
:nr_vertices(_nr_vertices)
{};
void BF(int xp);//breadth first
void read();//reads the adjancency matrix of the graph
void print();//prints on the screen the graph
bool det_conex();//determines if the graph contains conex components
void det_comp();//determines the conex components
void cycles();//determines if graph has cycles
void paths();//determines the longest and the shortest path between two nodes
~CGraf();//destructor
};
#endif
```

and here is my definition of the functions:

```
#include "graf.h"
int p,u,C[MATR_DIM],viz[MATR_DIM]; //C is a queue, viz hold the list for visited nodes "p" is the first in the queue, "u" is the last
void CGraf::BF(int xp)
{
for(int j=1;j<=CGraf::nr_vertices;j++)
viz[j]=0;
C[1]=xp;
viz[xp]=1;
p=1;
u=1;
while(p<=u)
{
for(int i=1;i<=CGraf::nr_vertices;i++)
if((viz[i]==0)&&(CGraf::matr_adi[C[p],i]==1))
{
u++;
C[u]=i;
viz[i]=1;
}
p++;
}
};
void CGraf::read()
{
int n=CGraf::nr_vertices;
for(int i=1;i<n;i++)
for(int j=i+1;j<=n;j++)
{
cout<<"matrix["<<i<<","<<j<<"]=";
cin>>CGraf::matr_adi[i][j];
CGraf::matr_adi[j][i]=CGraf::matr_adi[i][j];
}
cout<<"Adjacency matrix:"<<endl;
for(int i=0;i<n;i++)
for(int j=i+1;j<=n;j++)
cout<<CGraf::matr_adi[i][j];
};
void CGraf::print()
{
for(int i=1;i<=u;i++)
cout<<C[i];
};
bool CGraf::det_conex()
{
int i,j,k,a[MATR_DIM][MATR_DIM],n=CGraf::nr_vertices;
bool value=true;
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
a[i][j]=CGraf::matr_adi[i][j];
//Roy-Warshall algoritm to determine the chain matrix
for(k=1;k<=n;k++)
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
if((i!=k)&&(j!=k))
if(a[i][j]==0)
a[i][j]=a[i][k]*a[k][j];
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
if(i!=j)
if(a[i][j]==0)//if the chain matrix contains a 0 then the graph isn't conex
value=false;
if(value)
cout<<"Graph is conex"<<endl;
else
cout<<"Graph isn't conex"<<endl;
return value;
};
```

so far, I have 2 errors on this line

`if((viz[i]==0)&&(CGraf::matr_adi[C[p],i]==1))`

these errors are:

error C2446: '==' : no conversion from 'int' to 'int *'

error C2040: '==' : 'int [500]' differs in levels of indirection from 'int'

why do I have these errors?

*Edited 6 Years Ago by CPT*: n/a