数据结构——用python实现排序算法
用python实现各种数据结构，是不是EXCITING？本文实现了基础排序算法
代码较为简单，按顺序如下：
1.插入排序
#coding=utf8
L=[223, 85, 232, 171, 215, 229, 12, 58, 219, 143, 61, 152, 32, 42, 199, 82, 252, 217, 106, 240, 202, 40, 180, 292, 235, 214, 116, 76, 298, 33, 132, 185, 44, 31, 73, 110, 201, 174, 127, 108, 251, 83, 172, 36, 93, 88, 233, 218, 30, 18, 262, 293, 263, 277, 100, 48, 246, 98, 75, 170, 138, 278, 134, 297, 78, 226, 206, 176, 28, 133, 203, 50, 222, 123, 230, 285, 105, 189, 238]
'''
Created on 2016年10月2日
@author: sx
'''
def charu(L):
m=0
g=0
print(len(L))
for i in range(1,len(L)):
m=m+1
x=L[i]
j=i
while j>0 and L[j-1]>x:
m=m+1
L[j]=L[j-1]
j=j-1
g=g+1
L[j]=x
print(L)
print(m,g,m+g)
#方法简单直接又暴力，不错不错
charu(L)2、冒泡排序
#encoding=UTF-8
'''
Created on 2016年10月2日
@author: sx
'''
L=[223, 85, 232, 171, 215, 229, 12, 58, 219, 143, 61, 152, 32, 42, 199, 82, 252, 217, 106, 240, 202, 40, 180, 292, 235, 214, 116, 76, 298, 33, 132, 185, 44, 31, 73, 110, 201, 174, 127, 108, 251, 83, 172, 36, 93, 88, 233, 218, 30, 18, 262, 293, 263, 277, 100, 48, 246, 98, 75, 170, 138, 278, 134, 297, 78, 226, 206, 176, 28, 133, 203, 50, 222, 123, 230, 285, 105, 189, 238]
# def suiji(i):
def maopao(L):
m=0
for i in range(0,len(L)):
m=m+1
for j in range(i+1,len(L)):
m=m+1
if L[i]>L[j]:
print(L[i],L[j])
swap(L,i,j)
print(L)
m=m+1
print(m)
# 冒泡排序好像打擂台
def swap(L,i,j):
q=L[j]
L[j]=L[i]
L[i]=q
maopao(L)3、冒泡排序优化算法
#encoding=UTF-8
'''
Created on 2016年10月2日
@author: sx
'''
import random
L=[223, 85, 232, 171, 215, 229, 12, 58, 219, 143, 61, 152, 32, 42, 199, 82, 252, 217, 106, 240, 202, 40, 180, 292, 235, 214, 116, 76, 298, 33, 132, 185, 44, 31, 73, 110, 201, 174, 127, 108, 251, 83, 172, 36, 93, 88, 233, 218, 30, 18, 262, 293, 263, 277, 100, 48, 246, 98, 75, 170, 138, 278, 134, 297, 78, 226, 206, 176, 28, 133, 203, 50, 222, 123, 230, 285, 105, 189, 238]
# def suiji(i):
# s=[]
# for i in range(0,i):
# q=random.randint(10,300)
# if q not in s:
# s.append(q)
# print(s)
def maopao(L):
m=0
g=0
for i in range(0,len(L)):
m=m+1
for j in range(-len(L)+1,-i):
m=m+1
k=-j
# if L[k]
# print(L[i],L[k])
# swap(L,i,k)
# print(L)
# m=m+1
o=k-1
if L[k]1
print(m,g)
# 冒泡排序好像打擂台
def swap(L,i,j):
q=L[j]
L[j]=L[i]
L[i]=q
maopao(L)4、冒泡排序再优化
#encoding=UTF-8
'''
Created on 2016年10月2日
@author: sx
'''
import random
L=[223, 85, 232, 171, 215, 229, 12, 58, 219, 143, 61, 152, 32, 42, 199, 82, 252, 217, 106, 240, 202, 40, 180, 292, 235, 214, 116, 76, 298, 33, 132, 185, 44, 31, 73, 110, 201, 174, 127, 108, 251, 83, 172, 36, 93, 88, 233, 218, 30, 18, 262, 293, 263, 277, 100, 48, 246, 98, 75, 170, 138, 278, 134, 297, 78, 226, 206, 176, 28, 133, 203, 50, 222, 123, 230, 285, 105, 189, 238]
# def suiji(i):
# s=[]
# for i in range(0,i):
# q=random.randint(10,300)
# if q not in s:
# s.append(q)
# print(s)
def maopao(L):
m=0
f=1
g=0
for i in range(0,len(L)):
if f==1:
m=m+1
f=0
for j in range(-len(L)+1,-i):
m=m+1
k=-j
o=k-1
if L[k]1
print(L)
g=g+1
elif L[k]==L[o]:
f=1
else:
pass
print(m,g)
# 考虑一种情况 局部调整结束
def swap(L,i,j):
q=L[j]
L[j]=L[i]
L[i]=q
maopao(L) 5、希尔排序
'''
Created on 2016年10月2日
@author: sx
'''
L=[223, 85, 232, 171, 215, 229, 12, 58, 219, 143, 61, 152, 32, 42, 199, 82, 252, 217, 106, 240, 202, 40, 180, 292, 235, 214, 116, 76, 298, 33, 132, 185, 44, 31, 73, 110, 201, 174, 127, 108, 251, 83, 172, 36, 93, 88, 233, 218, 30, 18, 262, 293, 263, 277, 100, 48, 246, 98, 75, 170, 138, 278, 134, 297, 78, 226, 206, 176, 28, 133, 203, 50, 222, 123, 230, 285, 105, 189, 238]
def ShellSort(L):
t=len(L)
m=0
g=0
while(t>1):
t=int(t/12+1)
i=0
m=m+1
while i1
# print(i)
x=L[i]
j=i
while j>0 and L[j-t]>x:
m=m+1
g=g+1
L[j]=L[j-t]
j=j-t
# while L[i]
# L[i]=L[i+t]
# print(L)
L[j]=x
i=i+t
# print(L)
print(m,g,m+g)
ShellSort(L) 小慧慧还在睡觉~
6、选择排序
#encoding=UTF-8
'''
Created on 2016年10月2日
@author: sx
'''
L=[223, 85, 232, 171, 215, 229, 12, 58, 219, 143, 61, 152, 32, 42, 199, 82, 252, 217, 106, 240, 202, 40, 180, 292, 235, 214, 116, 76, 298, 33, 132, 185, 44, 31, 73, 110, 201, 174, 127, 108, 251, 83, 172, 36, 93, 88, 233, 218, 30, 18, 262, 293, 263, 277, 100, 48, 246, 98, 75, 170, 138, 278, 134, 297, 78, 226, 206, 176, 28, 133, 203, 50, 222, 123, 230, 285, 105, 189, 238]
# def suiji(i):
L=[2,3,12,34,52,1,45]
def xuanze(L):
print(len(L))
m=0
g=0
for i in range(0,len(L)):
min=i
m=m+1
for j in range(i+1,len(L)):
m=m+1
if L[min]>L[j]:
min=j
m=m+1
if min!=i:
swap(L,i,min)
print(L)
g=g+1
print(m,g)
# 选择排序和冒泡排序的不同：选择排序只需交换一次，冒泡排序需要比较且交换多次，选择排序比较的较多
def swap(L,i,j):
q=L[j]
L[j]=L[i]
L[i]=q
xuanze(L)