按Python中兩列之差的絕對值排序

Question

我有2個大整數A和B的大數組 現在我必須按照| A [1] -B [I] |

Example 
A={16,5} 
B={14,1} 
|A[i]-B[i]|={2,4} 
So sorted A={5,16} 
    sorted B={1,14} 

陣列可以包含更多比2的整數

Answer 1

讓我們NumPy的做吧！

import numpy as np 

A = np.random.randint(0, 100, 100) # or np.array(A) to convert from list 
B = np.random.randint(0, 100, 100) 

diff = np.abs(A-B) # your sort order 
sortidx = np.argsort(diff) # indexes which sort the data by diff 

print A[sortidx] # print A sorted in order of abs(A-B) 
print B[sortidx] 

如果你喜歡不NumPy的（見Equivalent of Numpy.argsort() in basic python?）：

import operator 

diff = map(operator.sub, A, B) 
sortidx = sorted(range(len(diff)), key=diff.__getitem__) 

print [A[idx] for idx in sortidx] 
print [B[idx] for idx in sortidx]