:
, :
) ;
) ;
) .
'. , , , , , , .
. - , .
ʳ Kc=C
K=R.
" " :
1. (by Insertion) .
2. (by Selection) .
3. (by Exchange) .
( ) () . , . :
1. , .
2. .
.
.
I. .
: . () . , .
:
1. , .
2. , , .
3. ().
:
1) , , ;
2) , , , , . , . , , , .
.
|
|
|
1
|
2
i=4
|
i=5
4
i .. =2,n
:
) ' , B:=A[i] ( i);
) , B>A[j]- ( j);
) , .
|
) , ( (1))
|inserton_1
1 n
A R
B R
i,j,k,n N
n,A
(i=2,n)
B:=A[i]
j:=1
(B³A[j])U(i>j) -
j:=j+1 -
-1
(k=i-1,j)
A[k+1]:=A[k] -
A[j]:=B -
A
|end
) , , ' ( 2)
, , , . . , () , j>1. " '".
³ i=3
B
|inserton_2
1 n
A R
B R
i,j,n N
n,A
(i=2,n)
B:=A[]
j:=
(j>1)∩(A[j-1]>B)
A[j]:=A[j-1]
j:=j-1
A[j]:=B
: A
|end
) " '" ( (2))
, , 0- , , . , () .
|inserton_3
0 n
A R
i,j,n N
n,A
(i=2,n)
A[0]:=A[]
j:=
A[0]<A[j-1]
A[j]:=A[j-1]
j:=j-1
A[j]:=A[0]
A
|end
, , .
II.
: . - . ( ) . 1. , n-1 ( ).
|
|
|
|
|
|
|
|
) .
|selection
1 n
A R
min R
s,i,j,n N
n,A
(s=1,n-1)
min:=A[s]
j:=s
(i=s+1,n)
(A[i]<min)
min:=A[i] ,
j:=i .
A[j]:=A[s]
A[s]:=min
A
|end
) , , .
|selection
1 n
A R
min R
s,i,j,n N
n,A
(s=1,n-1)
(i=s+1,n)
(A[i]<min)
min:=A[i]
A[i]:=A[s]
A[s}:=min
A
|end
III. ()
: . , . n-1 .
1.
,
|
f=true ;
k=6- ;
3,5
4,5
9,1
7,9
6,9
2.
|
f=true
k=5
1,5
6,7
3.
|
f=true
k=2
1,4
4.
|
f=true
k=1
1,3
5.
|
f=false
|
f=false
)
|exchenge_1
1 n
A R
B R
k,i,n N
n,A
-1
(k=n-1,1)
(i=1,k)
(A[i]>A[i+1])
B:=A[i]
A[i]:=A[i+1]
A[i+1]:=B
A
|end
)
( ), . , . ( ' " " - ). f, , , true false - .
|exchenge_2
A R
F R
B B
k,i,n N
n,A
F:=true
k:=n-1
(F=true)
F:=false
(i=1,k)
(A[i]>A[i+1])
B:=A[i]
A[i]:=A[i+1]
A[i+1]:=B
F:=true
k:=k-1
A
|end
) , , . ʳ , (k=1 - ), ( ).
|
|
|exchenge_3
1 n
A R
B R
k,i,n,r N
n,A
r:=n-1
(r>1)
k:=1
(i=1,r)
(A[i]>A[i+1])
B:=A[i]
A[i]:=A[i+1]
A[i+1]:=B
k:=
r:=k-1
A
|end
)
( ) ( ). ̳( ) ( ) . , .
L=1 R=n L,R
1.
3,9
2,9
5,9
1,9
6,9
|
k- , k=6 =6
L=1 R=6
2.
1,5
1,2
1,3
1,4
|
k=1 =2
L=2 R=6
|
3,4
2,4
|
k=3 =3
L=2 R=3
|
2,3
|
k=2 =3 L=R-
|exchenge_4
A R
B R
k,i,n,L,R N
A,n
L:=1; R:=n; k:=1
(R>L)
(i=L,R-1)
(A[i]>A[i+1])
B:=A[i]
A[i]:=A[i+1]
A[i+1]:=B
k:=i
R:=k
-1
(i=R-1,L)
(A[i]>A[i+1])
B:=A[i]
A[i]:=A[i+1]
A[i+1]:=B
k:=i
L:=k+1
A
|end