TÀI LIỆU THAM KHẢO - BÀI TẬP LẬP TRÌNH - CODE THUẬT TOÁN KRUSKAL
CONST MAXV=100;MAXE=(MAXV-1)*MAXV DIV 2; TYPE CANH=RECORD U,V,C:INTEGER; MARK:BOOLEAN; END; VAR E:ARRAY[1 MAXE]OF CANH; LAB:ARRAY[1 MAXV]OF INTEGER; M,N:INTEGER;CONNECTED:BOOLEAN;F1,F2:TEXT; {========================================================== ==========} PROCEDURE NHAP; VAR I:INTEGER; BEGIN READLN(F1,N,M); FOR I:=1 TO M DO WITH E[I] DO READLN(F1,U,V,C); END; {========================================================== ==========} PROCEDURE TAORONG; VAR I:INTEGER; BEGIN FOR I:=1 TO N DO LAB[I]:=-1; FOR I:=1 TO M DO E[I].MARK:=FALSE; END; {========================================================== ==========} FUNCTION GETROOT(V:INTEGER):INTEGER;{LAY GOC CUA CAY CHUA V} BEGIN WHILE LAB[V]>0 DO V:=LAB[V]; GETROOT:=V; END; {========================================================== ==========} PROCEDURE UNION(R1,R2:INTEGER); VAR X:INTEGER; BEGIN X:=LAB[R1]+LAB[R2]; IF LAB[R1]>LAB[R2] THEN BEGIN LAB[R1]:=R2; LAB[R2]:=X; END ELSE BEGIN LAB[R1]:=X; LAB[R2]:=R1; END; END; {========================================================== ==========} PROCEDURE AH(ROOT,LAST:INTEGER); VAR KEY:CANH;CON:INTEGER; BEGIN KEY:=E[ROOT]; WHILE ROOT*2