count unique words in a string c#

rev2023.7.14.43533. How and when did the plasma get replaced with water? c++ - How can I count the number of unique words [SOLVED] | DaniWeb You're a long way from understanding what you are doing, and 95% of this code should be thrown away. ), to hold the unique words, and a 1-dimensional array of ints with 100 elements to hold the associated counts. Count Unique Words || Python Coding Challenge - YouTube The while loop is mostly used in the case where the number of iterations is not known in advance. This program counts the number of unique words in a string using the countUniqueWords function. I am trying to figure out a function that counts each of the characters' occurrences in a string, so that I can pull them out at the end from the length to find how many homogeneous characters are used in that string. Connect and share knowledge within a single location that is structured and easy to search. One of its most frequent collaborators is sort because uniq has to have sorted input on which to work. In C programming, scanf() is one of the commonly used function to take input from the user. Also, remember and print the longest and shortest words in the file. 58 Copy string. Throw away this function entirely and rethink what you need to do. Their downsides are usually the huge chunk of memory being used, but are quite fast and easy to implement. Find centralized, trusted content and collaborate around the technologies you use most. Thanks for contributing an answer to Stack Overflow! In a file, there are various words. The process goes on until test expression is evaluated to false. 99 1 Suppose a string like this. Next, it will count the total number of words present inside this string using For Loop. 75 This program contains several issues which are to be considered harmful! To avoid overflows, the size of the array pointed by destination shall be long enough to contain the same C string as source (including the terminating null character), and should not overlap in memory with source. There are a couple of ways to do this. I have some of it working, but I'm really struggling with counting how many times each word appears. 4 -1 CSCI-15 Assignment #2, String processing. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. To sort, refer to this link: Sort filenames naturally with Qt, Here is source code of the C Program to Count the Number of Unique Words. How to count words frequency by removing non-letters of a string? Multiplication implemented in c++ with constant time. By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. 40 Why can you not divide both sides of the equation, when working with exponential functions? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. The second is using a std::vector. Length of the string "abcdefghijklmnopqrstuvwxyz". Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. given string sample = "Foe Doe"; it should output something like f = 1 o = 2 e = 2 d = 1 counting a single character . Find centralized, trusted content and collaborate around the technologies you use most. You can now use the linked list to print the characters as many times as its has been encountered. /* C Program to Count Number of Characters in a string */ #include<stdio.h> int main () { char str [20]; int i=0; printf ("\nEnter the string: "); gets (str); while (str [i]!='\0') i++; printf ("\nLength of [ %s ] is [ %d ]\n", str, i); return 0; } Output: Click to reveal How to count the number of same character in C? Better is to separate the code into small chunks. C | C Program to Count the Number of Unique Words Code Example - PHP Making statements based on opinion; back them up with references or personal experience. What is the coil for in these cheap tweeters? Distinct will simply remove all duplicates of a word; you'll get every words anyway whether they were unique or not. 59 After running the program, you will be prompted to enter a string. How do I make the first letter of a string uppercase in JavaScript? Find centralized, trusted content and collaborate around the technologies you use most. What should I do? I just came across this question while looking for some other stuff on Stack Overflow. strcpy(c[x], b[x]); The current code uses a std::vector to hold the words and linearly searches for each new word. That's how it works here. How to count unique words in string and output line where they occur? 79 #1 Hello, I am trying to find a formula to count the unique values in a cell and some of the unique values contain spaces within them; the ending of each value is indicated by an underscore. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. in the input, Novel solution to "substring with concatenation of all words", Longest word in dictionary that is a subsequence of a given string, How Does Military Budgeting Work? Any number of loops can be defined inside another loop, i.e., there is no restriction for defining any number of loops. Given a string, str consisting of lowercase English alphabets, the task is to find the number of unique characters present in the string. Asking for help, clarification, or responding to other answers. Write a C function called DistinctWords that counts the distinct words in its input string and prints them in the descending order of number of its occurrence. if (strcmp(c[x], b[e]) == 0) I can't afford an editor because my book is too long! Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. 589). I find the following way of counting distinct characters, very simple and in O(n).Here the logic is, just traverse through the character array, and for each character make its count 1, even if it repeats, just override the value with 1 only. C Program code to demonstrate nested printf statements. And who? Why is that so many apps today require MacBook with a M1 chip? @Jeremy, I tried to use a map for this, but I ran into problems because my code isn't separating the words properly. It is better to use for loop if the number of iteration is known in advance. { Determining string uniqueness in a large file, how to get the unique word in N number of inputs, How to count unique words in string and output line where they occur? Unique Words Counter in C - Stack Overflow So I advocate omitting it; others disagree (often vehemently!) - because that stuff is only for the, Count the number of unique words and occurrence of each word, How terrifying is giving a conference talk? Asking for help, clarification, or responding to other answers. printf("\nNumber of unique words in %s are:%d", a, x); @gov good callout, I changed the answer to make it work on older versions of C++. In both cases these provide simple functionality and fixed format compared to more sophisticated and flexible template engines or parsers. Starting the Prompt Design Site: A New Home in our Stack Exchange Neighborhood, Temporary policy: Generative AI (e.g., ChatGPT) is banned. If there is a tie for longest or shortest word, you may resolve the tie in any consistent manner (e.g., use either the first one or the last one found, but use the same method for both longest and shortest). The code should have this line added: Right now, all of the code is in main which isn't necessarily wrong, but it means that it's not only hard to reuse but also hard to troubleshoot. How to count word occurrences in an array of strings using c#? Starting the Prompt Design Site: A New Home in our Stack Exchange Neighborhood, Temporary policy: Generative AI (e.g., ChatGPT) is banned. By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. Why Extend Volume is Grayed Out in Server 2016? 14 b[j][k] = '\0'; An array is a collection of data items, all of the same type, accessed using a common name. Test file looks like this (exactly 4 lines, with NO NEWLINE on the last line): the quick brown fox jumps over the lazy dog. The additional arguments should point to already allocated objects of the type specified by their corresponding format specifier within the format string. In general, a while loop allows a part of the code to be executed multiple times depending upon a given boolean condition. It also counts a number of repeated words. Starting the Prompt Design Site: A New Home in our Stack Exchange Neighborhood, Temporary policy: Generative AI (e.g., ChatGPT) is banned. If you want to skip this copy step, you can just use strdup() instead. else 23 In this way you'll get the count of occurences of each character in single pass only. How terrifying is giving a conference talk? Examples: Input: str = "geeksforgeeks" Output: 7 Explanation: The given string "geeksforgeeks" contains 7 unique characters {'g', 'e', 'k', 's', 'f', 'o', 'r'}. Given a string s, return the sum of countUniqueChars(t) where t is a substring of s. The test cases are generated such that the answer fits in a 32 . There you need to know the frequency of each character, so a bit more than what you need. Below is a working program I wrote. Adding labels on map layout legend boxes using QGIS. main() function is a user defined, body of the function is defined by the programmer or we can say main() is programmer/user implemented function, whose prototype is predefined in the compiler. 44 A unique word means the number of occurrences of the word is one in the file. 589). These files are mainly imported from an outside source into the current program. (60 points) Due 9/23/13 You MAY NOT use C++ string objects for anything in this program. Please provide comments to help me improve my coding and problem solving skills. 105 But since OP was talking about two books or sth like that, the memory-efficiency of the trie won't be that bad and compared to the amount of data that will be analysed a trie won't carry that much weight. Your loop is terminating right away everytime. This website is using a security service to protect itself from online attacks. 88 92 How do I replace all occurrences of a string in JavaScript? This type of preprocessor directive tells the compiler to include a file in the source code program. Far better would be to use a std::unordered_map for this. Counting unique words in a text file - C++ Forum - C++ Users In Indiana Jones and the Last Crusade (1989), when does this shot of Sean Connery happen? int x = 0, e, j, d, k, space = 0; If they are equal to each other, it continues with the following pairs until the characters differ or until a terminating null-character is reached. #include <iostream> #include <fstream> #include <string> const std::string fileName { "unique.text" }; unsigned int numberOfWords () { // Here we will count the number of words in the file unsigned int counter . 8 Ways to Count Unique Text Using COUNTIF 1. How you process them is for you to work out. Not the answer you're looking for? What is the state of the art of splitting a binary file by size? rev2023.7.14.43533. You need to count the total number of words, the number of unique words, the count of each individual word, and the number of lines. Instead of using a multiset, why not use a map where the int-value in each key/value pair represents the number of times you've seen that particular word? C Program to Count the Number of Unique Words Code: #include #include #include int main () { int i = 0, e, j, d, k, space = 0; char a [50], b [15] [20], c [15] [20]; printf ("Read a string:\n"); fflush (stdin); scanf ("% [^\n]s", a); for (i = 0;a [i] != '\0';i++) //loop to count no of words { if (a [i] = = ' ') space++; } i = 0; It's not for this code. US Port of Entry would be LAX and destination is Boston. Suppose I have an entire one(or two) book in memory and I want to count the number of unique words in it, how do I count it? Is there a better algorithm? How and when did the plasma get replaced with water? #include is a way of including a standard or user-defined file in the program and is mostly written at the beginning of any C/C++ program. 74 Where to start with a large crack the lock puzzle like this? This function performs a binary comparison of the characters. In some implementations, flushing a stream open for reading causes its input buffer to be cleared (but this is not portable expected behavior). It also has the capability to store the collection of derived data types, such as pointers, structure, etc. 97 The if-else statement is an extension to the if statement using which, we can perform two different operations, i.e., one is for the correctness of that condition, and the other is for the incorrectness of the condition. Count Unique words in a string in C# - Stack Overflow Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, The future of collective knowledge sharing. It's not simply a case of changing that one line. @Daniel noo.. as the title says "all the character occurrences". Asking for help, clarification, or responding to other answers. What would a potion that increases resistance to damage actually do to the body? To learn more, see our tips on writing great answers. printf format strings are complementary to scanf format strings, which provide formatted input (parsing). This variable gives the count of number of words. How can I count the unique words in a pr - C++ Forum - C++ Users How can I make that work? Assuming the characters don't come from a file but rather from something like standard input, you also can't rewind the stream to read it again. 55 You may assume that the lines will be no longer than 100 characters, the individual words will be no longer than 15 letters and there will be no more than 100 unique words in the file. abstract class Unicode { public static string CountCharacters(string text) { return GetConcreteClass().CountCharactersCore(text); } protected virtual string CountCharactersCore(string text) { // Default implementation, overridden in derived classes if needed return StringInfo.GetTextElementEnumerator(text).Cast<string>() .Distinct().Count . Does Python have a string 'contains' substring method? Also, remember and print the longest and shortest words in the file. What should I do? Your simple, straight forward approach seems reasonable but I wouldn't use a fixed size array as you may run out of space. For example, given this input: The foo the foo the defenestration the The program should print the following: the 4 foo 2 defenestration 1 39 The only downside is that the size of frequencies is 256 here, uniqueness is then just checking which value is 1.