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  1. count = 0
  2. a = [1,5,3,4,2]
  3. k = 2 
  4. for i in range(len(a) - 1):
  5.     print("i = " + str(i))
  6.     for j in range(i + 1, len(a)):
  7.         if a[i] - a[j] == k:
  8.             count += 1
  9.         print("j = " + str(j))
  10. print ("count = " + str(count))
Success #stdin #stdout 0.01s 28384KB
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stdin
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Standard input is empty
stdout
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i = 0
j = 1
j = 2
j = 3
j = 4
i = 1
j = 2
j = 3
j = 4
i = 2
j = 3
j = 4
i = 3
j = 4
count = 2
https://ideone.com/Y7U40T
language:
Python 3 (python  3.9.5)
created:
7 years ago
visibility:
public

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