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</html> zh-cn Tue, 17 Jun 2025 18:37:44 GMT Tue, 17 Jun 2025 18:37:44 GMT 60 絎叚绔?絎竷绔?/title> http://www.aygfsteel.com/lengq/archive/2008/04/18/194023.html榪庨鍗佸叓鍒 榪庨鍗佸叓鍒 Fri, 18 Apr 2008 06:05:00 GMT http://www.aygfsteel.com/lengq/archive/2008/04/18/194023.html http://www.aygfsteel.com/lengq/comments/194023.html http://www.aygfsteel.com/lengq/archive/2008/04/18/194023.html#Feedback 0 http://www.aygfsteel.com/lengq/comments/commentRss/194023.html http://www.aygfsteel.com/lengq/services/trackbacks/194023.html Title 絎叚绔?鍫嗘帓搴?/fieldset>
MAX-HEAPIFY(A,i): 渚濇璋冩暣浣緼[i]涓烘牴鐨勫瓙鏍戞垚涓烘渶澶у爢錛屾槸鍫嗘帓搴忕殑閲嶈瀛愮▼搴忥紱
BUILD-MAX-HEAP(A):
1. heap-size[A] ← length[A]
2. for i ← ⌊length[A]/2⌋ downto 1 //浠庢渶鍚庝竴涓妭鐐圭殑鐖惰妭鐐瑰紑濮嬭皟鏁?nbsp;
3. do MAX-HEAPIFY(A,i)
HEAPSORT(A):
1. BUILD-MAX-HEAP(A)
2. for i ← length[A] downto 2
3. do exchange A[1] ↔ A[i]
4. heap-size[A] ← heap-size[A] -1
5. MAX-HEAPIFY(A,1)
HEAPSORT鐨勬椂闂村鏉傚害涓?#927;(nlgn);鑰屼笖鏈鍧忓拰鏈浣寵繍琛屾椂闂撮兘鏄?#937;(nlgn)
鏈澶т紭鍏堢駭闃熷垪鏀寔鐨勬搷浣?
INSERT(S,x)
MAXIMUM(S): 榪斿洖S涓叿鏈夋渶澶у叧閿瓧鐨勫厓绱?br />
EXTRACT-MAX(S): 鍘繪帀騫惰繑鍥濻涓殑鍏鋒湁鏈澶у叧閿瓧鐨勫厓绱?br />
INCREASE-KEY(S,x,k): 灝嗗厓绱爔鐨勫叧閿瓧鐨勫煎鍔犲埌k
HEAP-EXTRACT-MAX(A): 璺熷爢鎺掑簭涓鏍?br />
MAX-HEAP-INSERT(A,key):
1. heap-size[A] ← heap-size[A] + 1
2. A[heap-size[A]] ← -∞
3. HEAP-INCREASE-KEY(A, heap-size[A] , key)
Title 絎竷绔?蹇熸帓搴?/fieldset>
PARTITION(A,p,r):
1. x ← A[r]
2. i ← p-1
3. for j ← p to r - 1
4. do if A[j] £ x
5. then i ← i+1
6. exchange A[i] ↔ A[j]
7. exchange A[i+1] ↔ A[r]
8. return i+1
QUICKSORT(A,p,r)
1. if p < r
2. then q ← PARTITION(A,p,r)
3. QUICKSORT(A,p,q-1)
4. QUICKSORT(A,q+1,r)
]]> 絎洓绔?閫掑綊 http://www.aygfsteel.com/lengq/archive/2008/03/30/189669.html榪庨鍗佸叓鍒 榪庨鍗佸叓鍒 Sun, 30 Mar 2008 14:26:00 GMT http://www.aygfsteel.com/lengq/archive/2008/03/30/189669.html http://www.aygfsteel.com/lengq/comments/189669.html http://www.aygfsteel.com/lengq/archive/2008/03/30/189669.html#Feedback 0 http://www.aygfsteel.com/lengq/comments/commentRss/189669.html http://www.aygfsteel.com/lengq/services/trackbacks/189669.html 姹傝ВT(n)=T(ceil(n/2))+1
鐚滄祴瑙d負O (lgn)
鍙渶璇乀(n)<=clg(n-b)銆備簬鏄疶(n)<=clg(ceil(n/2-b))+1
<=clg(n/2-b+1)+1
...
<=clg(n-b)
涓繪柟娉?
褰㈠T(n)=aT(n/b)+f(n),娉ㄦ剰a>=1,b>1
姣旇緝f(n)鍜宯logb a 錛屽垯T(n)涓鴻緝澶ц咃紝濡傛灉f(n)=Q (nlogb a ),鍒橳(n)=Q (nlogb a lgn)
]]> 絎簩绔?鎻掑叆鎺掑簭 鍒嗘不娉曞強鍚堝茍鎺掑簭 http://www.aygfsteel.com/lengq/archive/2008/03/30/189661.html榪庨鍗佸叓鍒 榪庨鍗佸叓鍒 Sun, 30 Mar 2008 13:33:00 GMT http://www.aygfsteel.com/lengq/archive/2008/03/30/189661.html http://www.aygfsteel.com/lengq/comments/189661.html http://www.aygfsteel.com/lengq/archive/2008/03/30/189661.html#Feedback 0 http://www.aygfsteel.com/lengq/comments/commentRss/189661.html http://www.aygfsteel.com/lengq/services/trackbacks/189661.html 綆鍗曟彃鍏ユ帓搴?
Insertion-Sort(A):
1. for j = 2 to length[A]
2 . do key = A[j]
3 . // insert A[j] into the sorted sequence A[1..j-1]
4 . i = j - 1
5 . while i > 0 and A[i] > key
6 . do A[i + 1 ] = A[i]
7 . i = i - 1
8 . A[i + 1 ] = key
T(n)=O(n2 ) ,紼沖畾錛岀┖闂翠負O(1)
鍚堝茍鎺掑簭:
Meger-Sort(A,p,r):
1 . if p < r
2 . then q = floor((p + r) / 2 )
3 . Meger - Sort(A,p,r)
4 . Meger - Sort(A,q + 1 ,r)
5 . Meger(A,p,q,r)
T(n)=O(nlgn), 紼沖畾錛岀┖闂碠(n)
]]>
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