I Need To Find The Degree Of Each Vertex In A Given Graph. I Am Using G++ Compliler. Please Help Me With This Code.

#include <iostream>
#include<vector>
#include<list>
#include<fstream>
#include<cstring>

using namespace std;

const int n=6;

struct graph
{
    int vertices;
    char typ;
    char nodes[10];
} ;

struct node
{
    
    char str[10];
};

int main(int argc, char* argv[2])
{
    list<node> l;
   std::vector<list><node> >  adjlist[n];
  
   int i, degree[20];
   char ch, ch1,ch2;
   struct graph g1;
   g1=new graph;
   ifstream fin;
  
   fin.open(argv[1]);
  
   fin>> g1.vertices;
   fin>>ch;
   fin>> g1.typ;
  
   for(i=0; i <  g1.vertices-1  ;  i++   )
   {
       fin>> g1.nodes[i];
       fin>>ch;
      
   }
  
   fin>>g1.nodes[i];
  
   while(!fin.eof())
   {
       fin>>ch;
       fin>>ch1;
       fin>>ch2;
      
       for(i=0; i<g1.vertices;>       {
           if(g1.nodes[i]==ch)
           {
               degree[i]=degree[i]+1;
               adjlist[i].push_back(ch2);
               break;
           }
       }
      
      if(g1.typ=='u')
      {
           for(i=0; i<g1.vertices;>       {
           if(g1.nodes[i]==ch2)
           {
               degree[i]=degree[i]+1;
               break;
           }
      }
      
   }
   
   } 
   ofstream fout;
   fout.open(argv[2]);
   
   for(i=0; i< g1.vertices; i++)
   {
       fout<<g1.nodes[i];
       fout<<"," ;
       fout<<degree[i];
       fout<<"\n";
      
   }
   
   
  fout.close();
  fin.close();
  
   return 0;
}