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_3
      var_4 = [ ]
      for var_7 in range ( len ( var_0 [ 0 ] ) ) :
          var_3.heappush ( var_4 , ( var_0 [ 0 ] [ var_7 ] , 0 , var_7 ) )
      var_9 = 0
      for var_10 in range ( var_1 ) :
          var_9 , var_12 , var_7 = var_3.heappop ( var_4 )
          var_15 = float ( 'inf' )
          if var_12 < len ( var_0 ) - 1 :
              var_15 = var_0 [ var_12 + 1 ] [ var_7 ]
          var_3.heappush ( var_4 , ( var_15 , var_12 + 1 , var_7 ) )
      return var_9
  