counting

问题 I have a text file with a huge text written in forms of paragraphs. I need to count certain pieces of punctuation: , and ; from that text without using any module, not even regex . In addition, my program also needs to count ' and - , but only under certain circumstances. Specifically, it should count ' marks, but only when they appear as apostrophes surrounded by letters, i.e. indicating a contraction such as "shouldn't" or "won't" . (Apostrophe is being included as an indication of more

问题 I have a list. For example: [0, 0, 1, 0, 0, 1, 0] I'd like to know what is the most effective way to count the 1 -> 0 transitions. In this case for example the answer is 2 (in the 2-3 and in the 5-6 positions) I tried the following: stat=[0, 0, 1, 0, 0, 1, 0] pair1=stat[:-1] pair2=stat[1:] result=len([i for i in zip(pair1, pair2) if i==(1,0)]) I'm wondering if there is a better way 回答1: Here are 3 ways: from itertools import islice import numpy as np lst = [0, 0, 1, 0, 0, 1, 0] res1 = sum(i -

问题 This question already has answers here : Java count occurrence of each item in an array (17 answers) Closed 4 years ago . I'm writing a program that counts the occurrences of integers entered into an array, eg if you entered 1 1 1 1 2 1 3 5 2 3, the program would print out the distinct numbers followed by their occurrences, like this: 1 occurs 5 times, 2 occurs 2 times, 3 occurs 2 times, 5 occurs 1 time And it's almost finished, aside from one problem I can't figure out: import java.util

问题 This problem is really confusing me; we're given two integers A , B , we want to count occurrences of digits in the range [A, B] . I though that if we could count the number of digit occurrences in the range [0, A] and [0, B] , then the rest is trivial. So how can I count digit occurrences in a range [0, x] ? This isn't homework, this is actually a problem from SPOJ. The naive approach won't work, as A and B can be as large as 10 ^ 9. Here are some examples: Input: 1 10 Output: 1 2 1 1 1 1 1

问题 I need to take a string of mixed Asian characters (for now, assume only Chinese kanji or Japanese kanji/hiragana/katakana) and "Alphanumeric" (i.e., Enlgish, French), and count it in the following way: 1) count each Asian CHARACTER as 1; 2) count each Alphanumeric WORD as 1; a few examples: 株式会社myCompany = 4 chars + 1 word = 5 total 株式会社マイコ = 7 chars my only idea so far is to use: var wordArray=val.split(/\w+/); and then check each element to see if its contents are alphanumeric (so count as

问题 I'm looking for the fastest way of counting the number of bit transitions in an unsigned int . If the int contains: 0b00000000000000000000000000001010 The number of transitions are: 4 If the int contains: 0b00000000000000000000000000001001 The number of transitions are: 3 Language is C. 回答1: int numTransitions(int a) { int b = a >> 1; // sign-extending shift properly counts bits at the ends int c = a ^ b; // xor marks bits that are not the same as their neighbors on the left return CountBits

问题 I have a class called transaction that have these attributes Transaction([time_stamp, time_of_day, day_of_month ,week_day, duration, amount, trans_type, location]) an example of the data set is as such timestamp time date weekday duration amount trans_type location 1 0:07 3 thu 2 balance driveup 2 0:07 3 thu 6 20 withdrawal campus a 3 0:20 1 tue 2 357 advance driveup 4 0:26 3 thu 2 20 withdrawal campus b 5 0:26 4 fri 2 35 deposit driveup There are different transaction types. define in trans

问题 Given: <dmodule> <content> <procedure> <mainProcedure> <proceduralStep> <proceduralStep id="ps-111-222-test"> <title>Air Valve Assemblies</title> <proceduralStep> <title>General</title><proceduralStep><para>Equivalent substitutes can be used for items listed in the Table</para> </proceduralStep></proceduralStep></proceduralStep> <proceduralStep><para>Continue with this</para><para>Hold air valve plate</para></proceduralStep> <proceduralStep><para>Turn the screw....</para><para>Install bushing

问题 I'm using the dpylr package to count missing values for subgroups for each of my variables. I used a mini-function: NAobs <- function(x) length(x[is.na(x)]) ####function to count missing data for variables to count missing values. Because I have quite some variables and I wanted to add a bit more information (sample size per group, and percentage of missing data per group) I wrote the following code, and inserted one variable (task_1) to check it. library(dplyr) group_by(DataRT, class) %>%

问题 I'm trying to solve a problem and i can't figure out how to do it. The problem says that given an input file which has on the first line a number k and on the next lines some words, K is the minimum number of vowels that a word needs to have to be printed in the console. Example: Input: test.in cars are...great and awesome Output: If k is 2 the result should be: are great awesome And also it should not take into account spaces or other characters like .,!,? and so on. What i have so far: int