time

问题 I want to generalise how we get O(log log n)` time complexity. Yesterday I asked this question, in which I came to know, this: for(i=1 ; i<n ; i*=2) { ... } leads to O(log n) time complexity. By multiplying by 2 in each iteration, we are essentially taking next power of 2: For O(log n) i=i*2 ============ 1*2 = 2^1 = 2 2*2 = 2^2 = 4 4*2 = 2^3 = 8 and so on So to get O(log log n) time complexity, I need to take next double power (I coined this term "double power" for sake of convenience),

问题 I am trying to find the timezone of the android phone. Because I want to get the date object but I want in GMT+4 format. Every other answer I saw converts the time coming from an API request(whose timezone is known). How can I accomplish this? Other approach may be converting the GMT+4 time that comes to me from server to the local time of my device. 回答1: Best to use a real time zone rather than just an offset of +04. For example: OffsetDateTime currentDateTimeInGeorgia = OffsetDateTime.now

问题 I am working with an Excel file in Pandas where I am trying to deal with a Date column where the Date is listed in ISO 8601 format. I want to take this column and store the date and time in two different columns.The values in these two columns need to be stored in Eastern Daylight Savings. This is what they are supposed to look like Date Date (New) Time (New) 1999-01-01T00:00:29.75 12/31/1998 6:59:58 PM 1999-01-01T00:00:30.00 12/31/1998 6:59:59 PM 1999-01-01T00:00:32.25 12/31/1998 7:00:00 PM

问题 I am trying to set the default time of this datetime picker to 0800. Any idea how i can do this? <ion-label floating>Time: From</ion-label> <ion-datetime displayFormat="HH:mm" pickerFormat="HH:mm" [(ngModel)]="request.from" ></ion-datetime> 回答1: try something like : <ion-item> <ion-label>Date</ion-label> <ion-datetime displayFormat="MM/DD/YYYY" [(ngModel)]="myDate"></ion-datetime> </ion-item> JS: $scope.myDate = "2017-08-08 11:22:00"; 回答2: In my case, I'll receive the wrong date format from

问题 I’m working on a radar project using USRP N210 with UBX-40 daughterboard using MATLAB. I am facing a problem when I run the code for receiving the echo of the transmitted pulse. It is taking 4 seconds for the board to start receiving and collecting first sample, which doesn’t suit at all my case. After the first sample, receiving elapsed time for the other echoes is in milliseconds which not good because, echoes in radars should be received within microseconds or less and not seconds and

问题 I'm trying to convert String to date in my country time zone but the result is not as formatted I did let dbl = TimeInterval(longDate) let date = Date(timeIntervalSince1970: dbl / 1000) let formatter = DateFormatter() print(longDate) formatter.calendar = Calendar(identifier: .persian) formatter.locale = Locale(identifier: "fa_IR") formatter.timeZone = TimeZone(identifier: "IRST") formatter.dateFormat = "yyyy-MM-dd HH:mm:ss" let a = formatter.string(from: date) resultDate = dateFormatter.date

问题 Using print in a loop slows down the loop. Printing something (I tried with Hello! ) 100 times take ~2 sec, without it, it takes 0.0 second. I accurately captured the time using module time . Here is a loop that prints in it and shows the time taken at the end: import time t = time.time() for _ in range(100): print("Hello! ",end = "") print("\n",time.time()-t) Output: Hello! Hello! Hello! Hello! Hello! Hello! Hello! Hello! Hello! Hello! Hello! Hello! Hello! Hello! Hello! Hello! Hello! Hello!

问题 I am getting some warnings when compiling a C program on OSX 10.6.5, which seem to be quite critical. extras.c:15: warning: implicit declaration of function ‘time’ extras.c: In function ‘outlog’: extras.c:363: warning: implicit declaration of function ‘ctime’ The corresponding lines are as follows: Lines 13-15: RANDNUMGEN = gsl_rng_alloc(gsl_rng_taus); long t1; (void) time(&t1); Lines 360-363: if (LOG==NULL) { LOG=stdout;} TVAL = time(NULL); char* TIMESTRING = ctime(&TVAL); I believe the

问题 a date input where the user enters 2019-12-22 gives these values: input.value : "2019-12-22" input.valueAsNumber : 1576972800000 input.valueAsDate : "Sat Dec 21 2019 16:00:00 GMT-0800 (Pacific Standard Time)" this resulting date object just seems wrong when the browser returns a value, it treats the user input as universal time so the date object's utc representation is the same as what the input displays to the user input.valueAsDate.getUTCDate() returns 22 , which is what the user entered

问题 I'm trying to determine from a .csv file output (below) if the date/time meets our criteria for peak or off-peak. Peak/off-peak is determined by the day of the week and time. I'm trying to build a formula in excel that lets me know if each date/time is peak or off-peak. I have been using the text to column feature to put the data into two cells then use the TEXT function to determine day of the week in a new cell, then filter feature to input peak/off-peak. This is very manual and inefficient