C++ :: Find Frequency (string Into Struct Array)?

Apr 17, 2013

I'm trying to figure out the word frequency of a user inserted string. I've tried doing it via getline of the struct array and via the getline of the string word but neither either the former crashes or the latter just prints out the whole string.

Here is the latter.

#include "stdafx.h"
#include <iostream>
#include <string>
#define MAX_WORDS 200
using namespace std;

[Code] ....

How to handle the array of structs.

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C :: Find Highest Frequency Character In A String

May 17, 2014

The code shows all characters frequency, however i want to find which one has highest frequency

For example cprogrammmmming cboard
highest frequency: m

Code:
char string[100], ch;int c =0, count[26]={0};
printf("Enter a string
");
gets(string);

[Code] ....

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C :: Write Text And Find Frequency Of 1 Chosen Character In It - Input Error Handling

Dec 20, 2014

I'm new in programming, and trying to write a code in C. The requirement is following - to write a text, and to find frequency of 1 chosen character in it. The main thing is that program should check user input (for example, I want to check if user entered "char" --> then correct, or if entered "int" --> not correct). But the program still doesn't check. So I have:

Code:
#include <stdio.h>
int main(){
char c[1000], ch;
char i, count=0;
printf("Enter a text: ");
gets(c);

[Code] ....

Am I on my right way using if/else?

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C/C++ :: Finding Highest Frequency Character In A String?

May 17, 2014

the code shows all characters frequency, however i want to find which one has highest frequency for example cprogrammmmming cboard highest frequency: m

char string[100], ch;int c =0, count[26]={0};
printf("Enter a string");
gets(string);

[Code].....

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C++ :: Assign String To Char Array Of Struct

May 6, 2013

#include <iostream>
using namespace std;
struct box{

[Code].....

C++Dev.cpp:23: error: incompatible types in assignment of ‘const char [15]’ to ‘char [40]’

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C/C++ :: Finding Highest Frequency From Array Of Characters

Jan 27, 2015

I have been working on a project that deals with an array of characters and finding there frequencies. I was able to determine the frequencies that where greater than 1, but I need to find the HIGHEST frequency.

Here is my full code:

#include <iostream>
using namespace std;
void input(char unlisted[80], int& n);
void bubblesort(char unlisted[80], char sortedlist[80], int n);

[Code].....

As you can see this will print out all frequencies that are bigger than 1, but I only want the highest frequency. Basically I want to print out all frequencies when count is greater than 1 less than count, but because its in a loop count will always be greater than count-1 so it prints out all frequencies.

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C++ :: Find First 10 And Last 10 Words Of String Array

Jan 26, 2015

I got a homework that require to count number of words in a text file and also display the first and last 10 words of the text file to the console. I have finished the counter problem and now I struggle showing the first and last 10 words.

#include <iostream>
#include <sstream>
#include <string>
#include <fstream>
using namespace std;
int tokenize(string sentence, string tokenizedWords[]);

[code]....

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C/C++ :: Frequency Distribution - Finds All Numbers In Array That Show Up Exactly 5 Times

Oct 9, 2014

Create a program that finds all numbers in an array that show up exactly 5 times. I am trying to solve this issue by making a frequency distribution via two loops and two arrays, but I am having trouble getting my loop to not recount a number it has already counted.

For example, if you enter ten 1's into the "entered Numbers" array I want it to store a count of 10 in frequencyarray[1]. Instead it is storing

frequencyarray[0]10
frequencyarray[1]9
frequencyarray[2]8
etc...

#include <iostream>
using namespace std;
void enternumber(long[], int);
int main() {
int size;
int numbers5=0;

[Code] .....

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C++ :: Find Index Of String Array - Get Wrong Return Value?

Apr 17, 2014

Here is my code to find the index of a string array whose string is equal to the query string. I have checked the program can return the correct index, but the cout result is totally wrong.

#include <iostream>
#include <string>
using namespace std;

[Code].....

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C++ :: Find A Name In Struct Of Names

Jul 6, 2014

I cannot find the second name in the struct. First name comes out ok here is the code. I am reading from a file.

struct asma{
char name[200];
char birth[100];

[Code].....

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C++ :: Searching String Within Vector Struct

Nov 3, 2013

New to C++ lambda, got two question in regards of searching for strings within a vector struct.

Minimalistic example:
Code:
struct singleFile {
std::string filename;
};

std::vector<singleFile>myStorage;
myStorage.push_back(singleFile());

[Code] ....

1) why does found always return 0 eventhough the filename exists?

2) I don't know how to pass an actual search string instead of the hardcoded approach as above with filename =="

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C :: Printing A Char String From A Struct

Jan 3, 2015

I am trying to save 5 persons names to a struct, and then printing them afterwards, shortly before the program ends. I tried to print the char string out right after it has been copied over, and it showed fine, but when i try to write it out right at the end of the program (its in a separate function) the terminal just prints gibberish.

the function looks like this:

Code:
int printUser(){
printf("Following patients have been recorded in this session:
");
struct database patient1;
struct database patient2;
struct database patient3;

[Code]...

the output looks like this(as you can se in under structest, that it shows the correct string, it also uses printf):

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C :: Splitting String And Copying It Over To A Struct

Sep 26, 2013

I'm having trouble with this code. What I'm trying to do is to read a line from a file and cut that line into two pieces, one is the keyword and the other is the definition. I want to read up to when there is a dash and assign that line to key and then assign the rest of the line to def. After that I copy key to the struct DictEntries.key and def to DictEntries.def. The output of this shows only the definition for both DictEntries.key and DictEntries.def but if I use "puts(key);" I see the keyword.

Code:

while(!feof(dictionary))
{
char line[200];
char *key,*def;
fgets(line,sizeof(line),dictionary);
key = strtok(line,"-");
}

[code]....

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C++ :: Write Struct With String In Binary File

Jan 11, 2015

I have a structure :

struct Entrainement{
string muscleCible, nom, unitesObjectif;
double objectifActuel, dernierObjectif, objectifInitial, capaciteInitiale, progression[10];
};

and I want to write in a binary file the structure. The following works perfectly....

(*pointeurFichierEntrainementBin).write((char*)&exercice, sizeof(Entrainement));

except when the string exceed 11 characters. I guess it's because it has to pick a fixed sized for the string? but what if I want to always be able to have string up to 200 character? because now I can't exceed 11..I know writing a string with c_str() works, but I would like to write/read the structure in one shot.

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C/C++ :: String Copy Into Struct Doesn't Work

Nov 1, 2012

i'm right now using C, IO is done via ncurses, but that won't affect the following problem, i think. The relevant code is:

#define SIDEBARWIDTH 27
//...
typedef struct {

[Code]...

surprisingly this works, now the new 3rd outputline is correct again. So it seems that the printcommand has some troubles with accessing the struct here. Not sure if that might be ncurses fault. Still feels odd.

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C++ :: Initializing Const Struct When Data Is A String Literal

Feb 23, 2015

I have a struct like this:

Code:
struct String{
char* data;
std::size_t size;
};

I would like to be able to create const variables of this type for string literals.

Code:
const String message;

Is there an elegant way to create a const String like this when data is a string literal?

I tried this:

Code:
const char *string_data = "Hello";
size_t string_size = strlen(string_data) + 1;
const String string = {string_data, string_size};

The problem with that is that string.data isn't considered const during the initialization of the String struct so the compiler throws an error. It doesn't feel very elegant to do it like this either way.

Is there an elegant solution to this problem? I would like to avoid making a copy of the string literal.

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C :: Linear Search Function Accessing String In A Struct?

Apr 5, 2013

I currently have a file which allows inputs to record different transistor types. I then have the task of accessing this structure, find a certain manufacturer ID, and print the information about this particular transistor.

My problem is accessing the array to search through.

Here is my code:

Code:
#include "stdio.h"
const int IDLEN=30; //All constant values defined
const int POLARITYLEN=3;
const int MAXSTOCKITEMS=10;
//First structure defined
struct TransistorRec {

[Code]......

The errors I am currently getting are on line 54 'expected primary-expression before "struct"' and on line 60 ' 'maunfacturersID' undeclared'

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C/C++ :: Find If A String Contains A Quoted String?

Oct 23, 2014

bool isQstr(string const& str)
{
size_t found = str.find(""");
return found != string::npos;
}
/*

I am trying to check whether a string contains a quoted string, I used the escape character but it does not even recognize it*/

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C :: Parsing Char Array To Array Of Struct To Process Packets

May 28, 2013

I wrote this simplified version of a program i am writing that parses data in UDP packets. In the process of doing so i pretty much answered all my questions and fix all the problems i was having.

decodeSystemMap function will be in loop, and will proccess packets that have mostly the same data, only a few items will be added or changed or deleted.

whats the best way to check if there are any new, deleted, or removed items in the packet and only modify those?
Is there anything unsafe / dangrous about the way the code is now?

Code:
/* * File: main.c
* Author: david
*
* Created on May 23, 2013, 11:57 AM
*/

#include <stdio.h>
#include <stdlib.h>

[Code] ....

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C++ :: Letter Frequency For A Vector

Nov 9, 2013

I am trying to print out the letter frequency of a vector that the user inputs and what number that letter is in the ASCII. I am supposed to say, for example: "w" which is ASCII 119 occurs 2 times. How to do this?

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C++ :: Letter Frequency Count

Nov 13, 2013

I am new to c++. I am writing a program that reads in a text file and gives a count of how many times each letter appeared in the file. I got it to read the text file and do the letter count. B

X = 102
Y = 126
Z = 165
etc...

THAT IS WORNG

The sample output should be
E = 165
T = 126
A = 102
O = 93
etc...

I got it to sort from lowest to highest for the frequency, but cant seem to get the appropriate letter assigned to it.

#include <iostream>
#include <fstream>
#include <iomanip>
#include <string>

[code].....

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C++ :: Word Frequency In A Text

Dec 7, 2013

This program counts how many times does a word appear in a text. Why i have to add 1 to p in the while loop?

#include <iostream>
#include <cstring>
using namespace std;
char s[200], c1[20], *p;
int main() {
int k=0;

[Code] ....

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Visual C++ :: CPP High Frequency Trading

Jul 15, 2014

I have taken a keen interest in writing trading programs. I have some Python background, a little C# but no C++.

The example below was provided in a book on HFT and I would love to see how the results look. I was hoping that I would just compile it and away you go!

That didn't happen. To start with the author listed this as a function, so I converted it to a main program. Still having issues with my path and where to see the output. Here it is..

Code

void HFT_AvellanedaStoikov() {
FILE* fin, *fout;
double lambda_a, lambda_b, d_lambda_a, d_lambda_b;
int hh = 0, mm = 0, ss, nb = 0, na = 0, prevnb = 0, prevna = 0, prevm = 0;
double bid, ask, prevbid = 0, prevask = 0;
char * p1, *p2, buffer[1024], fname[512];

[Code] .....

Here is some data:

14 49 24.37 24.38
14 49 24.37 24.38
14 49 24.37 24.38
14 49 24.37 24.38
.... and so on ....

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C++ :: Return Maximum Frequency Number From Stack

Dec 17, 2013

I designed one mfc vc++application in which data received from udp is stored in file as well as in stack.I used stl for stack; it stored elements as per receiving order,but i want to return repetitive number from stack,how to use stack as function parameter & retrieve elements of stack as an array? I write code for push elements in stack given below.

<template< typename T > void pushElements( T &stackRef,int value) {
stackRef.push( value);
}/>

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C :: Detect Frequency Of Printable Characters - Incorrect Outcome

Mar 10, 2013

We have to make a code to detect the frequency of printable characters. But when I run the code, sometimes it can't detect the Uppercase Letters. But it can sometimes. It's a bit buggy, and it really can't get the frequency of the space character.

Does textcolor affect the outcome?

Code:
#include<stdio.h>#include<conio.h>
int main ()
{
clrscr();
char name[40],sentence[1000],ch;
int c=0,count[95]={0};
textcolor(LIGHTCYAN);

[Code] ....

I also noticed that it stops detecting the frequency when there is a space between character/s.

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C++ ::  keyboard That Counts Frequency Of Occurrence Of All Letters Of Alphabet

Mar 24, 2013

c++ program which reads an input stream from the keyboard that counts the frequency of occurrence of all the letters of the alphabet

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