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[ Last edited by lvzhu2007 on 2008-9-18 at 15:42 ]
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lvzhu2007

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2Â¥2008-09-18 15:41:26
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wqfybx

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3Â¥2008-09-18 18:39:13
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lvzhu2007

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Originally posted by wqfybx at 2008-9-18 18:39:
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4Â¥2008-09-18 19:15:58
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zh_haimin

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wuli8(½ð±Ò+1,VIP+0):3X!¹ÄÀøÐ³棡(*^__^*) ¡­¡­
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Yourattitude,notyouraptitude,willdetermineyouraltitude.
5Â¥2008-10-03 09:35:43
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huiy_chen

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wuli8(½ð±Ò+1,VIP+0):¹ÄÀøÐ³棡(*^__^*) ¡­¡­
ÎÒÒ²ÕýÔÚ±àд¹ØÓÚСÊÀ½çÄ£Ð͵Äfortran³ÌÐò£¬¿ÉÊǵóöÀ´µÄ½á×ÜÊDz»¶Ô£¬Îҵķ½ÏòÊÇ·ÇÏßÐÔ¶¯Á¦Ñ§£¬ÄÜ·ñ°ÑÄãµÄ³ÌÐò¸øÎÒ·¢Ï£¬huiy_chen@stu.snnu.edu.cn£¬²»Ê¤¸Ð¼¤£¡ÎҵĴúÂëÈçÏ£º
        program main
        implicit none
c        ******************************************************
c      creat a small-world network
c         ns is the number of edges
c      n is the number of vertex
c         kh is the nearest edges that connected to vertex i
c    ******************************************************
      integer i,j,ns,n,jj,kh,k
        real*8 p
      integer G(1:10,1:10)
        real*8 R(1:100)
        ns=0
        write(*,*)"n="
        read(*,*) n
        write(*,*)"kh="
        read(*,*) kh
        write(*,*)"p="
        read(*,*)p
        do j=1,n
           do i=1,n
           G(i,j)=0
           end do
        end do

        do i=1,n                       
           do jj=1,kh
              j=i+jj
            if(j.gt.n)j=j-n
            G(i,j)=1
                G(j,i)=1
                ns=ns+1
               
                end do
      end do
c******************************************************************
c      add edges randomly,ns denotes the degree of vertex
c******************************************************************       
        do i=1,n-kh-1
           do j=i+kh+1,n
              if(G(i,j).eq.1.d0)  cycle
                 call random_seed()
                 do k=1,1000
                 call random_number(R(k))
                 if(R(k).le.p)then
                  G(i,j)=1
                  G(j,i)=1
                  ns=ns+1
                 write(*,*) ns         
                     end if
                          
             end do
           end do
        end do
        end
6Â¥2008-11-12 10:55:48
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