comefrom: <garvit244>378_1.py
code: def kthSmallest( matrix, k):
      if not matrix:
          return 0 
      
      import heapq
      heap = []
      for col in range(len(matrix[0])):
          heapq.heappush(heap, (matrix[0][col], 0, col))
      
      val = 0
      for index in range(k):
          val, row, col = heapq.heappop(heap)
          new_val = float('inf')
          if row < len(matrix)-1:
              new_val = matrix[row+1][col]
          heapq.heappush(heap, (new_val, row+1, col))
      return val
masked: def sample_funcname ( var_0 , var_1 ) :
      if not var_0 :
          return 0
      import var_2
      var_3 = [ ]
      for var_4 in range ( len ( var_0 [ 0 ] ) ) :
          var_2.heappush ( var_3 , ( var_0 [ 0 ] [ var_4 ] , 0 , var_4 ) )
      var_5 = 0
      for var_6 in range ( var_1 ) :
          var_5 , var_7 , var_4 = var_2.heappop ( var_3 )
          var_8 = float ( 'inf' )
          if var_7 < len ( var_0 ) - 1 :
              var_8 = var_0 [ var_7 + 1 ] [ var_4 ]
          var_2.heappush ( var_3 , ( var_8 , var_7 + 1 , var_4 ) )
      return var_5
  