c= 0
For i=1 To 7
k=i
For j=i+1 To 8
If a(j) <= a(k) Then k= j
Next j
If a(i)<>a(k) And i<>k Then
t=a(i):a(i)=a(k):a(k)=t
c=c+1
End If
Next i
数组元素a(1)到a(8)的值依次为“54,12,23,12,7,12,78,23”,执行该程序段后,变量c的值是( )
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