gpt4 book ai didi

python - 我如何测量我的算法在整个运行过程中所花费的时间?

转载 作者:塔克拉玛干 更新时间:2023-11-03 03:12:56 28 4
gpt4 key购买 nike

<分区>

我正在研究我的以下算法(星型算法),我想计算它所花费的全部时间。我读到我想为时间 import timeit 导入这个库,但我不知道如何应用它。请问我可以得到建议或解决我的问题吗?

这是我在 Python 中的代码:

import random
import math
grid = [[random.randint(0,1) for i in range(100)]for j in range(100)]
# clear starting and end point of potential obstacles
grid[2][2] = 0
grid[95][95] = 0
init = [5,5]
goal = [len(grid)-10,len(grid[0])-12]
heuristic = [[0 for row in range(len(grid[0]))] for col in range(len(grid))]
for i in range(len(grid)):
for j in range(len(grid[0])):
heuristic[i][j] = abs(i - goal[0]) + abs(j - goal[1])
delta = [[-1 , 0], #up
[ 0 ,-1], #left
[ 1 , 0], #down
[ 0 , 1]] #right
delta_name = ['^','<','V','>'] #The name of above actions
cost = 1 #Each step costs you one
drone_height = 60
def search():
#open list elements are of the type [g,x,y]
closed = [[0 for row in range(len(grid[0]))] for col in range(len(grid))]
action = [[-1 for row in range(len(grid[0]))] for col in range(len(grid))]
#We initialize the starting location as checked
closed[init[0]][init[1]] = 1
expand=[[-1 for row in range(len(grid[0]))] for col in range(len(grid))]
# we assigned the cordinates and g value
x = init[0]
y = init[1]
g = 0
h = heuristic[x][y]
f = g + h
#our open list will contain our initial value
open = [[f, g, h, x, y]]

found = False #flag that is set when search complete
resign = False #Flag set if we can't find expand
count = 0

#print('initial open list:')
#for i in range(len(open)):
#print(' ', open[i])
#print('----')

while found is False and resign is False:
#Check if we still have elements in the open list
if len(open) == 0: #If our open list is empty, there is nothing to expand.
resign = True
print('Fail')
print('############# Search terminated without success')
print()
else:
#if there is still elements on our list
#remove node from list
open.sort()
open.reverse() #reverse the list
next = open.pop()
#print('list item')
#print('next')

x = next[3]
y = next[4]
g = next[1]
expand[x][y] = count
count+=1
#Check if we are done
if x == goal[0] and y == goal[1]:
found = True
print(next) #The three elements above this "if".
print('############## Search is success')
print()
else:
#expand winning element and add to new open list
for i in range(len(delta)):
x2 = x + delta[i][0]
y2 = y + delta[i][1]
#if x2 and y2 falls into the grid
if x2 >= 0 and x2 < len(grid) and y2 >=0 and y2 <= len(grid[0])-1:
#if x2 and y2 not checked yet and there is not obstacles
if closed[x2][y2] == 0 and grid[x2][y2] == 0 :
g2 = g + cost #we increment the cose
h2 = heuristic[x2][y2]
f2 = g2 + h2
open.append([f2,g2,h2,x2,y2])
#print('append list item')
#print([g2,x2,y2])
#Then we check them to never expand again
closed[x2][y2] = 1
action[x2][y2] = i
for i in range(len(expand)):
print(expand[i])
print()
policy=[[' ' for row in range(len(grid[0]))] for col in range(len(grid))]
x=goal[0]
y=goal[1]
policy[x][y]='*'
while x !=init[0] or y !=init[1]:
x2=x-delta[action[x][y]][0]
y2=y-delta[action[x][y]][1]
policy[x2][y2]= delta_name[action[x][y]]
x=x2
y=y2
for i in range(len(policy)):
print(policy[i])

search()

28 4 0
Copyright 2021 - 2024 cfsdn All Rights Reserved 蜀ICP备2022000587号
广告合作:1813099741@qq.com 6ren.com