integer

问题 Had a quick question based on an assignment I'm working on. I have a list of numbers like this in a text file: 5, 8, 14 7, 4, 2 And I need them inserted into an array as such joe[5][8] = 14; joe[7][4] = 2; Having trouble getting this done, thanks to anyone who can give me a hand. -Edit- This is the code I have now File f = new File("solution.txt"); Scanner sc = new Scanner(f); while(sc.hasNextLine()) { if(sc.hasNextInt()) x = sc.nextInt(); if(sc.hasNextInt()) y = sc.nextInt(); if(sc

问题 Say I have an 8-bit number with a flag at either side: <flag>0101011 (decimal 43) 0101011<flag> (decimal 43) Not sure which is more optimal for what's next. Then say I want to check the flag, and then use the number. Wondering if that can be done in one operation. Or if not, the fewest operations it can be done in. 回答1: You could do something like this using the flag at the end: var num = 0b01010110; var flag = num & 1; var int = num >> 1; console.log(flag); console.log(int); But binary

问题 I'm trying to print the smallest of three given (e.g. 4,6,2) values by making a trace table and a corresponding flowchart, but I have no idea where to begin. The trace table has five columns: 'statement,' 'a', 'b,' 'c,' and 'smallest.' Where do I begin? Also, would it change if two of the values are the same (e.g. 4,6,4), or if one of them is negative (4,6,-4)? 来源： https://stackoverflow.com/questions/55368853/how-do-i-make-a-trace-table-to-find-print-the-smallest-value-of-three-given-in

问题 I am using this code to get the numeric data from the file I am studying: [FileName,PathName]= uigetfile('*.txt*','Files to Study'); %fullfile puts pathname and filename into one file so it can be used to %import data from the chosen file file =fullfile(PathName,FileName); A = []; fid = fopen(file); tline = fgets(fid); while ischar(tline) parts = textscan(tline, '%d;'); if numel(parts{1}) > 0 A = [ A ; parts{:}' ]; end tline = fgets(fid); end fclose(fid); X = A(:,2) Y = A(:,7) It works fine,

问题 Is it possible to define a data object in python that behaves like a normal integer when used in mathematical operations or comparisons, but is also able to store instance variables? In other words, it should be possible to do the following things: pseudo_integer = PseudoInteger(5, hidden_object="Hello World!") print(5 + pseudo_integer) # Prints "10" print(pseudo_integer == 5) # Prints "True" print(pseudo_integer.hidden_object) # Prints "Hello World!" 回答1: Yes, it is. You can create your own

问题 I have two edittext boxes. I want to give an error message as soon as user clicks another place rather than these edittext boxes. I receive message Reference to non-existent field 'eth_xegim'. In fact, I have several edittext boxes before these two. When I print S , I can see the fieldnames are printed up to xegim but not xegim S.fh = figure('Visible','on','numbertitle','off','Name','GUI',... 'units','pixels','Position',[50 50 1500 750]); % Panel start S.ph_arazi = uipanel('Parent',S.fh,

问题 So what I'm thinking about doing is a little program where the user inputs a binary number (i.e 1010010100111000001), and then it is stored in an array, where each array position is associated with a digit of my number. Example: bit[0] = 1, bit[1] = 0 etc. The code I have in mind is this but i don't believe it works: int bit [31]; scanf("%i", bit); Help please! 回答1: The main problem is how to ensure the user enters a valid binary number, i.e. exclusively 0s and 1s. You can try to read the

问题 In Java , having a file of 335Gb size that contains individual numbers at each line, I need to read it line by line like if it was a stream of numbers - I must not keep all the data in memory. I was told that Scanner class will not work. Could you please recommend the best possible way to do that? 回答1: None of the java.io input stream classes would "keep all the data in memory". I think you are free to choose what is best for you such as BufferedReader or DataInputStream etc. 回答2: If you use

问题 http://www-graphics.stanford.edu/~seander/bithacks.html#CountBitsSetParallel v = v - ((v >> 1) & (T)~(T)0/3); // temp v = (v & (T)~(T)0/15*3) + ((v >> 2) & (T)~(T)0/15*3); // temp v = (v + (v >> 4)) & (T)~(T)0/255*15; // temp c = (T)(v * ((T)~(T)0/255)) >> (sizeof(v) - 1) * CHAR_BIT; // count This is the same problem in Python: Python equivalent of C code from Bit Twiddling Hacks? I need to use this code in PHP, independently from integer size (the above code works up to 128-bit integers,

问题 I am a beginner at programming using system calls in C. I am trying to use the execve call in one of my programs. I have to pass an integer as an argument to the program that is being invoked through execve. However, reading on the internet and seeing sample code, I can see that we can pass only strings as arguments. So, I tried converting the integer to a string using 'sprintf' and then using 'strcpy' to copy that string into one of the elements of the array of strings that has to be passed