How to count number of occurrences of pattern within a string?
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Best solution
For this question, a "pair" in a string is defined as a situation where two instances of one character are separated by another character. So in "AxA" the A's make a pair. Pairs can overlap, so "AxAxA" contains three pairs; two for A and one for x. Further examples: countPairs("axa") → 1 countPairs("axax") → 2 countPairs("axbx") → 1 I was asked how to compute the number of pairs in a given string in an interview yesterday, and I'm not...
Answer:
An O(n) solution would be to iterate the string (from 0 to length-2) and (using charAt(..)) to verify...
Deepak at Stack Overflow Mark as irrelevant Undo
Other solutions
I am having problems with a program I am writing in C++. It is suppose to take a user created sentence then out put the number of occurrences for the letters that make up the string. ...show more
Answer:
This is a solution not using map, but an array of integers. It also shows you how remove_if works for...
WPCQYPUJPI3BT3YUAFTJW424BI at Yahoo! Answers Mark as irrelevant Undo
Call your project CountEmRight and create just one class, Tester. In the main method, do the following: • Create a loop that asks for String input (a sentence). • Release from the loop if the input String is “EXIT”. • So as...
Answer:
This is pretty simple. Do you have a specific question, or are you just expecting someone to do your...
McFate at Yahoo! Answers Mark as irrelevant Undo
I am trying to write a program which randomly picks 100 integers from 0 - 99, displays the numbers, and counts the occurrences of of each number and lists them. I have successfully written the code to generate the random array of 100 integers, but my...
Answer:
This looks like homework so I'm not just going to hand you the answer, but here's a hint. The reason...
Mike at Yahoo! Answers Mark as irrelevant Undo
program part 1- EXTRN CONCAT:FAR EXTRN SUBSTRING:FAR PUBLIC STR1 PUBLIC STR2 PUBLIC MSG6 PUBLIC MSG7 PUBLIC MSG8 PUBLIC MSG9 MSG MACRO MSG ;macro of display msg LEA DX,MSG MOV AH,09H INT 21H ENDM INIT MACRO MOV AX,@DATA ...
Answer:
As a precondition for answering, please: Provide a link to the documentation of the INT 21h functions...
Ryan Wong at Quora Mark as irrelevant Undo
I have made a program to calculate number of word and number of occurrences of a user-specified keyword. However it for the case 2, it keep giving the wrong input but if I choose case 2 first the output will be right... Why it that? I need to get both...
Answer:
I'm not very good at C++ but I think you may need to close the file stream and re-open it between cases...
Cael at Yahoo! Answers Mark as irrelevant Undo
So I am currently reading a file byte by byte and comparing it against the pattern which I need to match. A pattern is an unsigned char and I want to count the occurrences of that pattern not including occurrences that span byte boundaries. What is the...
Answer:
I would make a lookup table for all 256 values of a byte to equivalent counts for the bit pattern being...
Alistair Israel at Quora Mark as irrelevant Undo
I get an eclipse error that the method play() is undefined for my game classes and I do not know how to add the method play to them. Also if you spot anything wrong with my demo could you let me know, I haven't run it yet because of the errors so I'm...
Tiger at Yahoo! Answers Mark as irrelevant Undo
After many attempts, I still can't get this correctly, any advice/help/corrections would be appreciated. Instructions: You will read one file to search for a given word and store a file with the search result. In addition, you are asked to print out...
Answer:
Here is the String API: http://docs.oracle.com/javase/1.5.0/docs… Take a look at the String.indexOf...
Vincent at Yahoo! Answers Mark as irrelevant Undo
I need some serious help with constructing this program. I'm having a difficult time writing the codes out. I'm a Beginner in Java programming so please keep any hints/suggestions/corrections as simple as possible... ------------------------------- You...
Answer:
Okay, from the top. Your searchWordInFile method needs to do exactly what it says in the comment above...
Vincent at Yahoo! Answers Mark as irrelevant Undo
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