import numpy as np
import copy
from datetime import datetime
#定位元素0的位置
def local(S0):
a = np.array(S0)
i,j = np.where(a ==0)return i[0],j[0]
def right_(S0):
i,j =local(S0)
arr = copy.deepcopy(S0)if j in (0,len(S0)-2):
arr[i][j], arr[i][j+1]= arr[i][j+1],arr[i][j]return arr
def left_(S0):
i,j =local(S0)
arr = copy.deepcopy(S0)if j in (1,len(S0)-1):
arr[i][j],arr[i][j-1]= arr[i][j-1],arr[i][j]return arr
def up_(S0):
i,j =local(S0)
arr = copy.deepcopy(S0)if i in (1,len(S0)-1):
arr[i][j],arr[i-1][j]= arr[i-1][j],arr[i][j]return arr
def down_(S0):
i,j =local(S0)
arr = copy.deepcopy(S0)if i in (0,len(S0)-2):
arr[i][j],arr[i+1][j]= arr[i+1][j],arr[i][j]return arr
# S1 =[[0,1,2,3],[4,5,6,7],[8,9,10,11],[12,13,14,15]]
# Sg =[[4,1,2,3],[0,5,6,7],[8,9,10,11],[12,13,14,15]]
S1 =[[0,1],[2,3]]
Sg =[[3,1],[2,0]]
# S1 =[[0,1,3],[4,2,5],[7,8,6]]
# Sg =[[4,1,3],[7,0,5],[8,2,6]]
open_ =[S1]
close =[]
start = datetime.now()whilelen(open_)>0:
n = open_.pop(0)
close.append(n)if n == Sg:print( n,'true','搜尋完畢!')breakelse:local(n)
Up =up_(n)if Up not in open_ and Up not in close and Up is not None:
open_.append(Up)
#print("上移 : ",Up)
Down =down_(n)if Down not in open_ and Down not in close and Down is not None:
open_.append(Down)
#print("下移 : ",Down)
Left =left_(n)if Left not in open_ and Left not in close and Left is not None:
open_.append(Left)
#print("左移 : ",Left)
Right =right_(n)if Right not in open_ and Right not in close and Right is not None:
open_.append(Right)
#print("右移 : ",Right)
open_ =list(filter(None, open_))print(n)
end = datetime.now()print('共耗時:', end - start)