lexicographic

Lexicographically larger strings

由 旧时模样 提交于 2019-12-13 15:42:53
问题 I'm trying to understand the concept of lexicographically larger or smaller strings. My book gives some examples of strings that are lexicographically larger or smaller than each other and an intermediary string that is between the two in size. string 1: a string 2: c intermediary string: b string 1: aaa string 2: zzz intermediary string: yyy string 1: abcdefg string 2: abcdefh intermediary string: (none) I'm not sure what the requirement is for a string to be lexicographically in between the

Generate restricted weak integer compositions (or partitions) of an integer n into k parts in Python

由 送分小仙女□ 提交于 2019-12-12 19:19:47
问题 (Re-posting, as I did not get any response to my previous post) I am trying to write a Python code to generate weak integer compositions (partitions) of a number 'n' into 'k' parts but with a MINIMUM and MAXIMUM value constraint on each partition (see example given below). Also, the partitions have to be generated in lexicographic order. I have found some related posts but have not been able to implement it. Any help will be appreciated. Example: Possible integer partitions for n=5 in k=3

How do I sort an ArrayList lexicographically?

由 生来就可爱ヽ(ⅴ＜●) 提交于 2019-12-10 13:22:33
问题 I am trying to sort an ArrayList of Strings that represent card values. So, some cards contain letters ("King") and some contain Strings containing only a number ("7"). I know to use Collections.sort, but it only sorts Strings that contain letters. How do I get the ArrayList to be sorted by number as well as alphabetically? Edit: Sorry, I must not have been paying much attention when I looked at the sorting. The sort works correctly, I must have just been thrown off by the fact that a 10 will

Floating point serialization, lexicographical comparison == floating point comparison

由 安稳与你 提交于 2019-12-08 03:35:02
问题 I'm looking for a way to serialize floating points so that in their serialized form a lexicographical comparison is the same as a floating point comparison. I think it is possible by storing it in the form: | signed bit (1 for positive) | exponent | significand | The exponent and the significand would be serialized as big-endian and the complement would be taken for negative numbers. Would this work? I don't mind if it breaks for NaN, but having INF comparison working would be nice. 回答1: The

Java: Three strings, lexicographic order

由 不羁岁月 提交于 2019-12-06 13:53:33
beginner Java programmer here. I am trying to compare three strings to each other, and have the system spit out the second/middle word in lexicographic order. import java.util.*; public class Ordered2 { public static void main(String[] args) { String firstString, secondString, thirdString; Scanner keyboard = new Scanner(System.in); System.out.println("Enter three different strings."); System.out.println("The string in the middle order lexicographically will be displayed."); firstString = keyboard.nextLine(); secondString = keyboard.nextLine(); thirdString = keyboard.nextLine(); String

Lexicographic Order in Java

由 两盒软妹~` 提交于 2019-12-05 15:14:18
问题 How is the lexicographic order defined in Java especially in reference to special characters like ! , . and so on? An examplary order can be found here But how does Java define it's order? I ask because I'm sorting Strings on Java and on Oracle and come up with different results and can't find the specification for the lexicographic order. 回答1: From the docs for String.compareTo: Compares two strings lexicographically. The comparison is based on the Unicode value of each character in the

What is the shortest way in .NET to sort strings starting with 1, 10 and 2 and respect the number ordering?

由 99封情书 提交于 2019-12-04 18:26:07
问题 I need to sort file names as follows: 1.log, 2.log, 10.log But when I use OrderBy(fn => fn) it will sort them as: 1.log, 10.log, 2.log I obviously know that this could be done by writing another comparer, but is there a simpler way to change from lexicographical order to natural sort order? Edit: the objective is to obtain the same ordering as when selecting "order by name" in Windows Explorer. 回答1: You can use the Win32 CompareStringEx function. On Windows 7 it supports the sorting you need.

Lexicographic Order in Java

由 …衆ロ難τιáo~ 提交于 2019-12-04 02:30:11
How is the lexicographic order defined in Java especially in reference to special characters like ! , . and so on? An examplary order can be found here But how does Java define it's order? I ask because I'm sorting Strings on Java and on Oracle and come up with different results and can't find the specification for the lexicographic order. From the docs for String.compareTo : Compares two strings lexicographically. The comparison is based on the Unicode value of each character in the strings. and This is the definition of lexicographic ordering. If two strings are different, then either they

Find the lexicographic order of an integer partition

由 北城余情 提交于 2019-12-03 09:47:47
问题 For permutations, given N and k , I have a function that finds the k th permutation of N in lexicographic order. Also, given a permutation perm , I have a function that finds the lexicographic index of the permutation among all permutations of N . To do this, I used the "factorial decomposition" as suggested in this answer. Now I want to do the same thing for integer partitions of N . For example, for N=7 , I want to be able to back and forth between the index (left) and the partition (right)

Lexicographical sorting

由 大城市里の小女人 提交于 2019-12-03 09:22:44
问题 I'm doing a problem that says "concatenate the words to generate the lexicographically lowest possible string." from a competition. Take for example this string: jibw ji jp bw jibw The actual output turns out to be: bw jibw jibw ji jp When I do sorting on this, I get: bw ji jibw jibw jp . Does this mean that this is not sorting? If it is sorting, does "lexicographic" sorting take into consideration pushing the shorter strings to the back or something? I've been doing some reading on
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