如何将数组转换为图形或将数组转换为邻接列表

Question

please i need help in converting an array to a graph or converting an array to an adjacency list. basically the problem is about reading a table in excel into c++

table.txt（关联矩阵）

A B C D E
A 0 1 1 0 0 B 1 0 1 0 1 C 1 1 0 0 0 D 0 0 0 0 0 E 0 1 0 0 0 并将“矩阵”表示为图形，并进一步查找图形中的子图（聚类）。所以算法MCODE接收图并找到簇。如何将我已读取我的文件的数组转换为图形或邻接列表

这是我的代码

#include <iostream>         
#include <fstream>            
using namespace std;    

int main()    
{    

 int array_size = 100048576;        
char * array = new char[array_size];    
int position = 0;    

ifstream fin("c:\\disc.txt");        
if(fin.is_open())    
{    
    cout << "File Opened successfully!!!" << endl;

    while(!fin.eof() && position < array_size)
    {
        fin.get(array[position]);     
        position++;
    }
    array[position-1] = '\0'; //placing character array terminating character

cout << "Displaying Array..." << endl << endl;    
  for(int i = 0; array[i] != '\0'; i++)
    {
        cout << array[i];
    }
}
else //file could not be opened
{
    cout << "File could not be opened." << endl;
}
return 0;

}