comefrom: <doocs>0443.String Compression_1.py
code: def compress( chars: List[str]) -> int:
      i, k, n = 0, 0, len(chars)
      while i < n:
          j = i + 1
          while j < n and chars[j] == chars[i]:
              j += 1
          chars[k] = chars[i]
          k += 1
          if j - i > 1:
              cnt = str(j - i)
              for c in cnt:
                  chars[k] = c
                  k += 1
          i = j
      return k
masked: def sample_funcname ( var_0 : List [ str ] ) -> int :
      var_5 , var_6 , var_8 = 0 , 0 , len ( var_0 )
      while var_5 < var_8 :
          var_10 = var_5 + 1
          while var_10 < var_8 and var_0 [ var_10 ] == var_0 [ var_5 ] :
              var_10 += 1
          var_0 [ var_6 ] = var_0 [ var_5 ]
          var_6 += 1
          if var_10 - var_5 > 1 :
              var_11 = str ( var_10 - var_5 )
              for var_12 in var_11 :
                  var_0 [ var_6 ] = var_12
                  var_6 += 1
          var_5 = var_10
      return var_6
  