logic

问题 In Python, the built-in functions all and any return True and False respectively for empty iterables. I realise that if it were the other way around, this question could still be asked. But I'd like to know why that specific behaviour was chosen. Was it arbitrary, ie. could it just as easily have been the other way, or is there an underlying reason? (The reason I ask is simply because I never remember which is which, and if I knew the rationale behind it then I might. Also, curiosity.) 回答1:

问题 In Python, the built-in functions all and any return True and False respectively for empty iterables. I realise that if it were the other way around, this question could still be asked. But I'd like to know why that specific behaviour was chosen. Was it arbitrary, ie. could it just as easily have been the other way, or is there an underlying reason? (The reason I ask is simply because I never remember which is which, and if I knew the rationale behind it then I might. Also, curiosity.) 回答1:

问题 I've made a program for the USACO task and now I just can't figure out why I'm getting the bad answer, I've been thinking why for a long time and still didn't figure it out. What could be wrong? The task is to count the number of times the 13th falls on Saturday, Sunday, Monday, Tuesday, ..., Friday. The year from when to test is 1900 and the last year is given in the txt file. Instead of this answer: 36 33 34 33 35 35 34 I'm getting: 34 33 33 33 36 36 35 Thank you very very very much for you

问题 I've made a program for the USACO task and now I just can't figure out why I'm getting the bad answer, I've been thinking why for a long time and still didn't figure it out. What could be wrong? The task is to count the number of times the 13th falls on Saturday, Sunday, Monday, Tuesday, ..., Friday. The year from when to test is 1900 and the last year is given in the txt file. Instead of this answer: 36 33 34 33 35 35 34 I'm getting: 34 33 33 33 36 36 35 Thank you very very very much for you

问题 How do you create a snapLogic REST Account for Yahoo OAuth2? I'm able to get the Request Authorization part to work but after I authrozie the application, snapLogic does not have the Access token populated 回答1: Here are the settings that I used to successfully establish an OAuth connection with yahoo using the explicit grant flow (https://developer.yahoo.com/oauth2/guide/flows_authcode/) Depsite the parameters that yahoo outlines in their documentation, the snapLogic REST Account object does

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . Hey I need some help with my AP Comp Sci homework. In the assignment I need to print the factors of a passed variable, z. This is what I've gotten so far in my method public static void printFactors(int z) { for(int x=1; x<=z; x++) { if(z%x.......) { System.out.println(x); } } } How would I go about finishing

问题 following my original question, I try to rephrase it to make it more clear: I have this two tables that are the result of two queries ; The tables have the first column in common but each row in the first table can have more than one correspondence in the second. I need to iterate through each row in the first table and create a dynamic html table with all the correspondent row(s) from the second. This is the code I tried but it only gives as result the first row from the second table: $stmt2

问题 I have a issue that I cannot wrap my head around. I am using the Laravel Framework. I am trying to make a ranking table based on placement (Meaning the user does not have any SCORE, they just have placements) How I want it to work is the following way: User A = Placement: 1 User B = Placement: 10 User B wins over User A , then User B gets placed as number 1 and User A gets placed as number 2 , and then I want it to update all the other users accordingly. I can't seem to find a reliable way of

问题 I'm working on my homework and trying to get two characters which are numbers from an array for example ABC10DEF I want to get 10 and store it in an int type. number_holder_1 = back[3] - '0'; number_holder_2 = back[4] - '0'; number = number_holder_1 * 10 + number_holder_2; This doesn't work I don't know why. When I print out the value of number_holder_1 it does display 1 and when I display number_holder_2 it display 0 but when I print number it just display 0 I don't know how. UPDATE: The

问题 The problem is that I have array with 5 numbers: 300 295 250 105 100 95 The result needed: the most numbers that have least difference specified by threshold. If you cant understand: in the example threshold is 5 and the winning set of numbers is 95,100,105 - because there are 3 numbers that are close to each other and the other set (295,300) is only 2. I will try to come up with more clear explanation soon. 回答1: I cannot give Javascript code, but I propose: Sort the list Compute sequential