Блок схема для программы

#include <stdio.h>
#include <alloc.h>
#include <math.h>
#include <conio.h>
#include <iostream.h>
 struct VECTOR{int n; float*x;
 void nw(){x=new float[n];}
// default  constructor:
 VECTOR(){n=0;x=0;}
// constructor with 1 arg. :
 VECTOR(int fn){n=fn; nw();}
// constructor with 2 arg. :
 VECTOR(int n,float*x);
// copying  constructor:
 VECTOR(VECTOR&v);
// destructor:
~VECTOR(){if(x)delete[]x;x=0;}
//V=F {V.n=F.n;V.x[j]=F.x[j];return*this==V
//(we can write V1=V2=V3 due to VECTOR&)}:
 VECTOR&operator=(VECTOR&F);
//  V() {output V.x[0], V.x[1],... }:
 void operator()(FILE*f);
// V[j] {return V.x[j]
//(we can write V1[i]=V2[j]=V3[k] due to float&...)}:
 float&operator[](int j){return x[j];}
 }; // end of VECTOR body
  VECTOR::VECTOR(int fn,float*fx)
{n=fn; nw(); for(int j=0;j<n;++j)x[j]=fx[j];}
  VECTOR::VECTOR(VECTOR&F)
{n=F.n;nw();for(int j=0;j<n;++j)x[j]=F.x[j];}
  VECTOR&VECTOR::operator=(VECTOR&F)
{if(x)delete[]x; n=F.n;nw();
for(int j=0;j<n;++j)x[j]=F.x[j];return*this;}
  void VECTOR::operator()(FILE*f=stdout)
{for(int j=0;j<n;++j)fprintf(f,"% -7g",x[j]);}
// end of VECTOR
 
// independant function:
  float operator*(VECTOR&v1, VECTOR&v2)
{float a=0; for(int j=0;j<v1.n;++j)
a+=v1.x[j]*v2.x[j]; return a;}
 
 struct DV:VECTOR{DV():VECTOR(){}DV(int fn):VECTOR(fn){}
DV(int n,float*x):VECTOR(n,x){}
DV(DV&v):VECTOR(v){}
DV&operator++(int);
}; // end of DV body
  DV&DV::operator++(int)                                         
{for(int j=0;j<n;++j)x[j]++;return*this;}
// end of DV
 
  void main(){cout<<"\n\n mem0="<<coreleft()<<'\n';
 {int m=0, n=3; float y[3]={1,2,3};
//tests of constructors (VECTOR v1(n,y),v2(v1),v3 ; )
//and operators ( operator=,  operator() ):
 VECTOR v1(n,y),v2(v1),v3; v3=v2;
cout<<"VECTOR v1(n,y),v2(v1),v3; v3=v2; v3(); -> ";
v3();
// test of operator*:
m=v2*v3; cout<<"\n m=v2*v3; -> m="<<m;
// test of operator++:
 cout<<"\n mem="<<coreleft()<<'\n';
{ DV dv(n,y),d(dv);
 d++; cout<<"\n d++; d(); ->"; d();
 cout<<"\n mem="<<coreleft()<<'\n';
}}cout<<"\n mem="<<coreleft(); getch(); }