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PROGRftH BFSPAN CIUT.0UTPyT.TAPE6=0UTPUT,TApe5slNPUTI

G, t CFS, .

*01! ,

NEXTUI .

G 1,2....,

. . G. <0»-

-

V ,

. "

INTEGER AOJ(IOOO). NEXTtlDOOl INTEGER V. P

.

PEAD (5.1000! FORHAT ( 14. If I 1 = + 1

ADJ NEXT.

DO 50 11 S 1.

ADJ(II) =0

NEXTdlJ = 50 CONTINUE

G.

10 READ tS.lOOO) H.N

IF { .UT. ) GO TO

rjEXT(I) = NEXT(M! ADJII) s N MEXT(HJ = I 1 = 1 + 1 NEXT(I) = NEXTINI ADJ(I) = n rjEXT(N) = I 1 = 1 + 1 GD TO 100

V BFS.

800 READ (5.18001 V

CALL BFS (V« AOJt NCXTt P 1

STOP

SUBROUTINE BFS IV. ADJ. . P )

.

«** **♦

V ,

.

3.5.9. BFS ( 2000: «

».)



AOJtNEXT .

.

*** ***

LABLEd) ,

.

VECTORrI) VECTOR(I) = J, .

VSITIJIsI , 1-, . VISIT(.V) = 0 , V .

LJSTdJ LIST- ,

.

n , , LIST.

I

LIST.

PTR , .

.

INTEGER ADJ(ICOO). NEXTdOOO) INTEGER VECTORdOOIt ViSITIlOOJ INTEGER LABELdOOr . INTEGER LISTdcO) INTEGER V» Pt PTR

.

CO I = i.p

LABELdI = I LISTd) = 0 VISITd) = 0 VECTOR d) = 0 10 CONTINUE

LIST(P+1 = 0 1 = 1 N = 1

V .

LISTd) = V VECTORrV) = 0

visiT(v) = 1

, .

50 = LIST(N) PTR =

.

100 PTR = NEXTIPTR)

IF ( PTR .EQ. ! TO 150 J = ADJ(PTR)

, . IF ( VISIT(J) .NE. I GO TO 100

. 3.5.9.



.

1 = 1 + 1

LIST(I) = J VISIT(J)= I VECTOR(J) s M eo TO 10.O

ISO f = N + i

IF ( LIST(N) .NET. 0 } 60 TO So WRITE (6,3000) ILABEL(K).K=i,p)

SIOO FORMAT (IHQ. 0131-RETURN ENO

.3.5.9. .

, - , . , . - , . - , , DFS. - «» . , , , , . . .

3.5

3.5.1. . , ! , , ?

3.5.2. . :

.

\ (-)\

, , .

*3.5.3. G(n) /- , . G(n). () .

3.5.4. . , / g (. . 2.2.12).

3.5.5. . , Ks, - , . 3.6.4.

3.5.6. . (?) =1, 2, 3, . , . , 50.



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0.001