You dont need to take extra array for your purpose, you can do this just by adding each input value and then divide that total with total number of input items. double total = 0; double result; Console.Write(“For how many numbers you want to do the average calculation: “); int a = int.Parse(Console.ReadLine()); for (int … Read more
The first problem is that you are not allocating memory for each char*. mem is a pointer to a pointer. This means this value will need allocation (as you do): mem = (char **)malloc(sizeof(char*) * 2048); You can remove the 512 from your code because this only needs memory for the pointers themselves not the … Read more
I see 3 ways (I’m not sure about which one has the best perfs, but I will bet on the last procedural way): Using the json_decode function, you will get an array from your string and then just iterate over it to get your data Using regexp, see an example here with pattern /subdomain:(.*?),.*?comment:(.*?),/ Using … Read more
There are several issues with your code (using legacy APIs, using bad parameters, missing logic, etc). Try something more like this instead: #include <iostream> #include <Windows.h> const DWORD transparenton = 0x00000001; const DWORD transparentoff = 0x00000000; using namespace std; void pause(); void act(HKEY key); bool getTransparency(HKEY key, DWORD &value); void setTransparency(HKEY key, DWORD value); int … Read more
Because the spec says so. See The Addition operator (+): If Type(lprim) is String or Type(rprim) is String, then Return the String that is the result of concatenating ToString(lprim) followed by ToString(rprim) Return the result of applying the addition operation to ToNumber(lprim) and ToNumber(rprim). So it only matters whether some operand is a string, but … Read more
You need to set the style of the body element if the string you are checking for is present in the URL. if(window.location.href.indexOf(“player=1″)!=-1) document.body.style.backgroundColor=”#000”; Alternatively, to avoid setting inline styles, you can create a new class and apply it to the body if the string you are checking for is present. body.player1{ background:#000; } if(window.location.href.indexOf(“player=1”)!=-1) … Read more
You have two bits here. One is to schedule a cron job and the other is to get the file & save it. Steps : Open the terminal & run crontab -e minute(0-59) hour(0-23) day(1-31) month(1-12) weekday(0-6) command In place of minute, hour, day, month & weekday. Also provide the command to run. The command … Read more
This causes undefined behaviour. strcpy may only be used between areas that do not overlap. To fix this code you could write: memmove(m+1, m, strlen(m) + 1); solved Unpredictable behavior for strcpy(m+1,m)
Nothing. When using the object initialiser syntax { }, the () for a parameterless constructor is optional. From the overview of C# 3.0, where this syntax was introduced: An object creation expression can omit the constructor argument list and enclosing parentheses, provided it includes an object or collection initializer. Omitting the constructor argument list and … Read more
You don’t need all of the jumping-through hoops you’re doing. Windows will find the application associated with PDF files for you. procedure TForm1.Button1Click(Sender: TObject); var s: String; Ret: DWord; begin s := ‘C:\MyFiles\MyFile.pdf’; Ret := ShellExecute(Handle, nil, PChar(s), nil, nil, SW_SHOW); if Ret < 32 then ShowMessage(SysErrorMessage(GetLastError)); end; Note: Normally you should never call a … Read more
You need to create two drawable files for this Create this two files in res > drawable 1. circle_shape.xml <?xml version=”1.0″ encoding=”utf-8″?> <shape xmlns:android=”http://schemas.android.com/apk/res/android” android:shape=”ring” android:innerRadiusRatio=”2.8″ android:thickness=”10dp” android:useLevel=”false”> <solid android:color=”#CCC” /> </shape> 2. circular_progress_bar.xml <?xml version=”1.0″ encoding=”utf-8″?> <rotate xmlns:android=”http://schemas.android.com/apk/res/android” android:fromDegrees=”270″ android:toDegrees=”270″> <shape android:innerRadiusRatio=”2.8″ android:shape=”ring” android:thickness=”10dp” android:useLevel=”true”><!– this line fixes the issue for lollipop api 21 … Read more
You can try making a 2d array so something like $newarray = [ “a” => [‘red’,’pink’,’maroon’], “b” => [‘green’], “c” => [‘blue’] ]; Then you can access the values like this: $newarray[‘a’] Which will return an array containing red pink and maroon 1 solved Return all values from a PHP array for a given key
As I wrote in my comment, I would not set the existing value to null. Instead, a computed column seems like a better option to me. Also, varchar(1) is the second worst data type you can choose (nvarchar(1) is even worst). First, if you know you only ever going to have a fixed length string, … Read more
Create your html file as a string in python. This string can be modified in response to sensor input. Write it to a file on your system where the html is source file exists; rewrite each time the sensor inputs change. Set up a timer in Javascript, e.g. setTimeout() to refresh the page often. 2 … Read more
Something like this should work… df = pd.DataFrame({‘date’: [‘2017-01-01 01:01:01’, ‘2017-01-02 01:01:01’, ‘2017-01-03 01:01:01’, ‘2017-01-30 01:01:01’, ‘2017-01-31 01:01:01’], ‘value’: [99,98,97,95,94]}) df[‘date’] = pd.to_datetime(df[‘date’]) def get_list(row): subset = df[(row[‘date’] – df[‘date’] <= pd.to_timedelta(‘5 days’)) & (row[‘date’] – df[‘date’] >= pd.to_timedelta(‘0 days’))] return str(subset[‘value’].tolist()) df[‘list’] = df.apply(get_list, axis=1) Output: date value list 0 2017-01-01 01:01:01 99 [99] … Read more