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generate days from date range
...select a.Date
from (
select curdate() - INTERVAL (a.a + (10 * b.a) + (100 * c.a) + (1000 * d.a) ) DAY as Date
from (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all...
What is the optimal algorithm for the game 2048?
...resting watching.
To assess the score performance of the AI, I ran the AI 100 times (connected to the browser game via remote control). For each tile, here are the proportions of games in which that tile was achieved at least once:
2048: 100%
4096: 100%
8192: 100%
16384: 94%
32768: 36%
The minim...
Arduino 101 实验06 - 土壤湿度传感器，做一个浇水提醒 · App Inventor 2 中文网
...))
var 百分比 = round((moisture - 干值) / max(1, 湿值 - 干值) * 100)
var 夹紧 = max(0, min(100, 百分比))
标签_百分比.Text = join(夹紧, "%")
if 夹紧 < 30 {
标签_建议.Text = "土壤偏干，该浇水了"
标签_建议.TextColor = "&HFFEF6C00"
if not 已...
How to remove/delete a large file from commit history in Git repository?
...the core part is just this:
$ java -jar bfg.jar --strip-blobs-bigger-than 100M my-repo.git
Any files over 100MB in size (that aren't in your latest commit) will be removed from your Git repository's history. You can then use git gc to clean away the dead data:
$ git gc --prune=now --aggressive
...
How to re-sync the Mysql DB if Master and slave have different database incase of Mysql replication?
... locks on the master as quickly as possible.
Assume the master is 192.168.100.50 and the slave is 192.168.100.51, each server has a distinct server-id configured, the master has binary logging on and the slave has read-only=1 in my.cnf
To stage the slave to be able to start replication just after ...
SVG Positioning
...rg/1999/xlink">
<svg x="10">
<rect x="10" y="10" height="100" width="100" style="stroke:#ff0000;fill: #0000ff"/>
</svg>
<svg x="200">
<rect x="10" y="10" height="100" width="100" style="stroke:#009900;fill: #00cc00"/>
</svg>
</svg>
The t...
What is the simplest SQL Query to find the second largest value?
...the largest value is repeated? Suppose a column contains numbers 1 through 100 but 100 is repeated twice. Then this solution will produce the second largest value as 100, which will be incorrect. Right?
– Pankaj Sharma
Apr 1 '13 at 19:21
...
How to limit the maximum value of a numeric field in a Django model?
...ve (like an oscillator range):
size = fields.IntegerRangeField(min_value=-100, max_value=100)
What would be really cool is if it could be called with the range operator like this:
size = fields.IntegerRangeField(range(1, 50))
But, that would require a lot more code since since you can specify ...
How to generate random number with the specific length in python
...
To get a random 3-digit number:
from random import randint
randint(100, 999) # randint is inclusive at both ends
(assuming you really meant three digits, rather than "up to three digits".)
To use an arbitrary number of digits:
from random import randint
def random_with_N_digits(n):
...
What's the difference between echo, print, and print_r in PHP?
...
100
echo
Outputs one or more strings separated by commas
No return value
e.g. echo "String 1", ...