#“nested

Python – sort a list of nested lists

I have input consisting of a list of nested lists like this:

l = [[[[[39]]]], [1, 2, 3], [4, [5, 3], 1], [[[[8, 9], 10], 11], 12]]

I want to sort this list based on the sum of all the numbers in the nested lists… so, the values I want to sort by of l would look like this:

[39, 6, 13, 50]

Then I want to sort based on these. So the output should be:

[[1, 2, 3], [4, [5, 3], 1], [[[[39]]]],…

Nested transaction in ejb sessionbean – bean managed transaction

I have the following code which saves the user and sends a JMS message. Currently im wraping the saveUserSendMessage with the UserTransaction. When the transaction is nested I get a exception in the ejb. What do I do below to make the nested transaction possible?

@Resource(mappedName = "java:/JmsXA") private static QueueConnectionFactory queueConnectionFactory; @Resource(mappedName =…

javascript test for existence of nested object key

If I have a reference to an object –

var test = {};

that will potentially (but not immediately) have nested objects, something like –

{ level1:{level2:{level3:'level3'}} };

what is the best way to test for the existence of keys in the most deeply nested objects?

This –

alert(test.level1);

returns ‘undefined’, but this –

alert(test.level1.level2.level3);

fails.

I’m currently doing…

Nested Weights Vs Nested Layouts with weights. Which is better?

Android Lint gives us warning when we do nested weights saying that nested weights are bad for performance so i was wondering what will happen if i add an extra layout which encloses the nested weigh layouts. Will it make any difference in performance?

The guy heresaid that Layout weights require a widget to be measured twice. When a LinearLayout with non-zero weights is nested inside another…

Using nested functions in C

I have written a function to be called by a main. In the function, I have a nested function. I compile using:

gcc -o numericalIntegration numericalIntegration.c TrapezoidRule.c SimpsonsRule. GaussQuad.c -fnested-functions

Here is my TrapezoidRule:

#include #include #include #define pi 3.1415927 //Note: This program was taken from the first practical and adjusted for sin instead of tan(x) and…

How to use _iter_ with nested dict generator function to get one key – value pair from two stacks at a time

I have a class with iterthat pops() and yields one item at a time from a deque with letters, S_stack = deque([“a”,”b”,”c”]) and a stack with integers, I_stack = ([1,2,3]), and I want to combine it with a function, count_dict, which saves key – value pairs, with S_stack letters as keys and I_stack integers as values to the keys and increases the value +1 if condition. At the moment I’m…

nested unique_ptr and stl containers

I have recently read about RAII and have begun using it. I am trying to define graph as adjacency list and allocate the entire DS on heap using unique_ptr. I know that I can define them as stack objects, but I am trying to use unique_ptr‘s to get used to them.

I am doing the following

unique_ptr to vector -- |-->(unique_ptr)list |-->(unique_ptr)list |-->(unique_ptr)list |-->(unique_ptr)list