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  1. def rlePress(s):
  2.     l=len(s)
  3.     p=s[0]
  4.     count=1
  5.     res=""
  6.     for i in range(l-1):
  7.         c=s[i+1]
  8.         if (c==p):
  9.             count+=1
  10.         else:
  11.             res+=p+str(count)
  12.             count=1
  13.         p=c
  14.     res+=p+str(count)
  15.     return res
  16.  
  17.  
  18. stri=input()
  19. print(rlePress(stri))
  20.  
  21.  
Success #stdin #stdout 0.02s 27672KB
comments (?)
stdin 
aaaabbcaa
stdout 
a4b2c1a2
https://ideone.com/pwCO8F
language:
Python 3 (python  3.12)
created:
6 years ago
visibility:
public

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