comefrom: <garvit244>18_1.py
code: def fourSum( nums, target):
      sumMapping = {}
      for index_i in range(len(nums)-1):
          for index_j in range(index_i+1, len(nums)):
              currSum = nums[index_i] + nums[index_j]
              if currSum in sumMapping:
                  sumMapping[currSum].append((index_i, index_j))
              else:
                  sumMapping[currSum] = [(index_i, index_j)]
      
      result = set()
      for key, value in sumMapping.iteritems():
          diff = target - key
          if diff in sumMapping:
              firstSet = value
              secondSet = sumMapping[diff]
      
              for (i, j) in firstSet:
                  for (k, l) in secondSet:
                      fourlet = [i, j, k, l]
                      if len(set(fourlet)) != len(fourlet):
                          continue
                      fourlist = [nums[i], nums[j], nums[k], nums[l]]
                      fourlist.sort()
                      result.add(tuple(fourlist))
      
      return list(result)
masked: def sample_funcname ( var_0 , var_1 ) :
      var_2 = { }
      for var_6 in range ( len ( var_0 ) - 1 ) :
          for var_7 in range ( var_6 + 1 , len ( var_0 ) ) :
              var_8 = var_0 [ var_6 ] + var_0 [ var_7 ]
              if var_8 in var_2 :
                  var_2 [ var_8 ].append ( ( var_6 , var_7 ) )
              else :
                  var_2 [ var_8 ] = [ ( var_6 , var_7 ) ]
      var_11 = set ( )
      for var_13 , var_14 in var_2.iteritems ( ) :
          var_15 = var_1 - var_13
          if var_15 in var_2 :
              var_16 = var_14
              var_17 = var_2 [ var_15 ]
              for ( var_18 , var_19 ) in var_16 :
                  for ( var_20 , var_21 ) in var_17 :
                      var_22 = [ var_18 , var_19 , var_20 , var_21 ]
                      if len ( set ( var_22 ) ) != len ( var_22 ) :
                          continue
                      var_23 = [ var_0 [ var_18 ] , var_0 [ var_19 ] , var_0 [ var_20 ] , var_0 [ var_21 ] ]
                      var_23.sort ( )
                      var_11.add ( tuple ( var_23 ) )
      return list ( var_11 )
  