public List<Account> acclist{get;set;}
public List<Contact> conlist{get;set;}
public List<MyWrapper> wap{get;set;}

public WrapperAccountCtrl()
{
    acclist=[Select id,name from Account];

    conlist=[Select id,name,AccountID  from contact where AccountID IN:acclist];

    system.debug('Size----'+conlist.size());

     wap=new List<MyWrapper>();

     for(integer i=0;i<acclist.size();i++)
     {
         wap.add(new MyWrapper(conlist,acclist[i]));

     }

}



public class MyWrapper
{

    public Account accn{get;set;}

    public List<Contact>conrec{get;set;}

    public MyWrapper(List<Contact> con,Account acc)
    {
        accn=acc;
        conrec=con;

    }


}

<apex:pageBlock >
         <apex:pageBlockTable value="{!conlist}" var="c">

             <apex:column value="{!c.account.Name}"/>






         </apex:pageBlockTable>



     </apex:pageBlock>




 </apex:form>