2. Reverse an Array using an Array Module of Python Similarly, you can use the array module of Python to reverse an array. Python doesn’t support arrays, you can use this module to create an array of specified
The flipud() method is yet another method in the NumPy module which flips an array up/down. It can also be used to reverse a NumPy array in Python. Let us see how we can use it in a small example. import numpy as np #The original NumPy array new_arr=np.array(['A','s','k'...
Check outNumPy Reset Index of an Array in Python Method 4 – Use the reverse() Function with tolist() If you need to work with Python lists temporarily, you can convert the NumPy array to a list, reverse it, and then convert it back: import numpy as np # Create a sample array arr...
import numpy as np # numpy array arr = np.array([10, 20, 30, 40, 50, 60]) print("Original array is:", arr) # reverse an array using flip() method # 0 denotes horizonatl axis rev_arr = np.flip(arr, 0) print("Reversed array is:", rev_arr) Output: 1 2 3 4 Original ...
The numpy.flipud() function flips the elements of the array upside down. The numpy.flipud() function takes the array as an argument and returns the reverse of that array. See the following code example.import numpy as np array = np.array([1, 2, 3, 4, 5]) reverse = np.flipud(...
e = np.array([[5.,3.,8.],[6.,7.,1.],[4.,8.,2.]]) e.sort() 结果: e = array([[3.,5.,8 .],[1.,6.,7 .],[2.,4.,8.]]) 现在倒序: e.sort(reverse=True) 结果: TypeError: 'reverse' is an invalid keyword argument for this function ...
npair +=merge2part(nums, start, mid, end);returnnpair; }intmain(){inta, b; vector<int> nums;while(cin >> a){ nums.clear();//别忘了清零while(a-- >0&& cin >> b){ nums.push_back(b); } cout <<reversePair(nums,0, nums.size()-1) << endl; ...
Find i, such that ai is the smallest element of array a among index 1 to n. Then if you reverse a1 to ai, you have the smallest element of a at a1. Again, find the smallest among a2 to an and reverse a2 to ai to bring the 2nd smallest to the 2nd position... and so on.....
This way, you first reverse the list which creates an iterator. You then transform it into a list. The result can be enumerated. If you want to reverse the order of the indices as well, simply switch the order of both functions:
read() f.close() # array@7687 (type=[B) image_key_base64 = bytes('svOEKGb5WD0ezmHE4FXCVQ==', encoding='utf8') # 图片解密key image_key = base64.decodebytes(image_key_base64) print(image_key) iv = base64.decodebytes(bytes('4B7eYzHTevzHvgVZfWVNIg==', encoding='utf8')) #...