In a large cluster, some un-expected long running task hold back the job’s runtime sometimes. And those long running tasks are hard to locate in such a large cluster. Some ideas are shown here to help to locate those long running tasks. One of them will be implemented in the coming released of OGL.继续阅读 »
Motivation
Functor solves the problem of mapping regular one-parameter functions into a sub-category, but that's not easy for functions with more than one parameters.
Let's consider a function with two parameters f :: a -> b -> c, which can also read as a -> (b -> c). Applying fmap on f, we will get fmap f :: m a -> 继续阅读 »
Typically, you only need to execute the following command for compiling project.
bash
xmake
xmake will probe your host environment and target platform automaticly.
The default mode is release and xmake will compile all targets.
You can compile only one given target which name is 'test' for executing the follo继续阅读 »
Question
Given a linked list, remove the nth node from the end of list and return its head.
For example,
Given linked list: 1->2->3->4->5, and n = 2.
After removing the second node from the end, the linked list becomes 1->2->3->5.
Note:
Given n will always be valid.
Try to do this in one pass.
解说
这道题的意思是，如何反向删继续阅读 »
Question
Given an array of integers, return indices of the two numbers such that they add up to a specific target.
You may assume that each input would have exactly one solution.
Example:
Given nums = [2, 7, 11, 15], target = 9,
Because nums[0] + nums[1] = 2 + 7 = 9,
return [0, 1].
UPDATE (2016/2/13):
The return forma继续阅读 »
直接写
js
function imgError(image) {
image.onerror = null; // prevent event bubble
image.src = "/images/noimage.gif";
return true;
}
html
使用 jQuery
```js
$("img").error(function () {
$(this).unbind("error").attr("src", "broken.gif");
});
//If you use this technique you can use the "one" method to av继续阅读 »