C/C++ :: Removing Duplicate Values From Map?

Mar 1, 2015

im working on a homework assignment t that should print all pairs of integers that sum to val. I have so far finished except It prints duplicate values (ie (3,1) and(1,3) for values that add to 4) . how can i remove these duplicate pairs of values?

#include <iostream>
#include <map>
#include <vector>
using namespace std;
void printPairs( vector<int> numbers, int val){
int i;

[code]....

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C :: Removing Duplicate Elements From Array

Nov 4, 2013

While removing duplicate elements from an array, if more than 4 array elements are same then removal does not work. however my logic seems to be alright. i reckon there is a problem with the conditions and assignments in the three for loops that i have used. the program is as follows:

Code:
/*c program to remove duplicate elements in an array*/
#include<stdio.h>
int main(void)
{
int array[30],i,j,k,n;
printf("

[Code] ....

Take for instance if the input elements are 1,1,1,1,1,2,2,3,5 then after removal of duplicacy the array is 1,1,2,3,5.

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C++ :: Removing Duplicate Strings In A Vector?

Sep 1, 2014

I'm trying to create a database/search engine program and I'm having remove duplicate strings from a vector. I'm mostly just trying to make it so that if 2 or more movie have the same title in the database, it will remove the duplicates and just print out one copy of the movie console. I tried using the unique() command, but it doesn't seem to work.

code:

#include <iostream>
#include <string>
#include <vector>

[Code].....

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C :: Scanning 2 Dimensional Array For Duplicate Values

Mar 26, 2013

I am trying to scan a 2 dimensional array to see if there are any duplicates within a row or column; i.e. the concept of a sudoku game.how to scan a row or column one at a time.

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C++ :: Removing NULL Values In Text File

Sep 2, 2013

I have a measuring board that writes a .txt file in the following format:

board number;type;NUL;channel;measured value;date and time
DS207;5000007;NUL;0;20251;11.07.2013 12:30:02 MESZ
DS207;5000007;NUL;1;10159;11.07.2013 12:30:02 MESZ
DS207;5000007;NUL;4;27.18;11.07.2013 12:30:02 MESZ
DS207;5000007;NUL;0;20233;11.07.2013 12:35:02 MESZ
DS207;5000007;NUL;1;10149;11.07.2013 12:35:02 MESZ
DS207;5000007;NUL;4;27.31;11.07.2013 12:35:02 MESZ
DS207;5000007;NUL;0;20256;11.07.2013 12:40:02 MESZ
...

I would like to extract and analyse the data but the data behind the NUL entry is not accessible for me maybe due to the fact that NUL normally marks the end of a line. Is there a method to remove the NUL entries in this text file?

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C++ ::  Algorithm To Read Duplicate Array Elements - Return First Duplicate Value Only

Oct 23, 2014

I have an algorithm which uses nested for loops, which looks for duplicate elements in an array. However, as soon as one duplicate element is found... the program will stop looking for more duplicates? My program continues to look for more even though one is found? I know there is a break command but I can't get it to work. Code is below:

output of program: Repeating element found first was: 2, 1

Although I want the outcome to be; Repeating element found first was: 2

#include<stdio.h>
#include<stdlib.h>
#include <iostream>
using namespace std;
void printRepeating(int arr[], int size) {
int i, j;

[Code] .....

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C Sharp :: Cancellation Of Duplicate Values - Display Match Items In ListView

Feb 4, 2013

How to display the record that match for the duplicate items in a Listview. I use C# with linq queries.

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C++ :: How To Duplicate String Array

Sep 8, 2014

I'm trying to duplicate a string array. I created a function called duplicate but, when i run it, it gives me an error... what is wrong with it?

#include <iostream>
#include <string>
#include <fstream>
#include <array>
#define ARRAY_SIZE(array) (sizeof((array))/sizeof((array[0])))

[Code] .....

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C++ :: Finding Duplicate In 2D Vector String

Apr 5, 2013

I want to find that whether the 2d Vector table having duplicate or not. I can see lot of programs for removing duplicates by using unique STL algorithm. Which is the best way to find " is Duplicate or not " for 100,000 Records.

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C# :: How To Avoid Duplicate Updates In SQL Query

Jun 13, 2014

I have table called leavetable where in i have the fields eid, lfrom,lto, reason,status an employee will insert these fields in the leave form except status, status will be updated by admin but there is no unique field in the table so when the admin updates the status as cancel for an id emp001 so whereever this id is present in the table its getting updated to cancel even though it is approved previously.. How to avoid this duplication ?

SqlConnection con = new SqlConnection(Connectionstring);
con.Open();
string sql = "update leavetable set status = '"+status+"' where eid = '"+textBox1.Text+"' and noofdays = '"+textBox5.Text+"'";

[Code] .....

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C/C++ :: Prevent Duplicate Entry When Insert Age

Oct 17, 2014

I created program that insert employes data and then print their data but never accept duplicate age if user entered duplicated age prompt him to enter another age (age must be unique)

Here is my code

#include<conio.h>
#include<stdio.h>
#define size 3
struct emp {
int age,overtime,dedcution,netsal;

[Code] .....

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C :: Remove Duplicate Strings From Char Array

Apr 15, 2014

The goal is to merge two files of names, sort them and remove duplicates.I've managed to merge the two files into a single char array and sort them with a function so they are alphabetical.I'm having problems removing the duplicate entries from the array. Here is my code:

Code:

#include <stdio.h>
#include <string.h>
#define NUMSTR 10
#define STRLNG 9

[Code]....

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C++ :: Lottery Program That Generate 5 Non Duplicate Number Between 1 To 20

Nov 4, 2014

I need to write a lottery program that generate 5 non duplicate number between 1-20. Below is my code and it said my [i] is undefined and it is an undeclare identifier.

#include <iostream>
#include <stdlib.h>
#include <time.h>
#include <iomanip>
using namespace std;
int main(){
srand(time(NULL));

[Code] ....

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C++ :: Reading File Then Writing To It If Duplicate Not Found

Jan 22, 2014

I'm having issues with writing to a file. more precisely, i'm trying to determine if a set of numbers are in the file. if they are already in it, don't write to the file. if not, write to the file. My problem is my program is writing all numbers, even duplicates. The sort is working.

#include <iostream>
#include <fstream>
#include <algorithm>
using namespace std;
//Counter Stats
int STR;

[code].....

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C++ :: Program That Generates 5 Non Duplicate Numbers Between 1 And 20 By Using Arrays

Nov 4, 2014

program that generates 5 non duplicate numbers that is between 1 and 20 by using arrays. Here is my code and i cant compile it.

#include <iostream>
#include <stdlib.h>
#include <time.h>
#include <iomanip>
using namespace std;
int main() {
srand(time(NULL));

[Code]...

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C++ :: Removing Element From Map?

Jun 20, 2013

I have a map as below. MoTopImpl is a class.

Map<MoTopImpl*,os_Reference_protected<MoTopImpl> > map_;

The map is populated as below:

void setMoInMap(MoTopImpl* mo,MoTopImpl* me) {
map_[mo] = me;
}

Now, I want to remove a specific element from this map. I am passing the element to be removed to the remove function as below:

void Asap::removeMoFromMap(MoTopImpl* mo) {
// First solution
if (mo != 0) {

[Code]....

And the function removeMoFromMap is called as below:

MoTopImpl* moTop = getMoTopImpl();
if (moTop != 0)
removeMoFromListMosSuspended(moTop);

But I am able to empty the map by iterating through the complete map as below:

Mapiter<MoTopImpl*,os_Reference_protected<MoTopImpl> > moIter(map_);
for (moIter = map_.first(); moIter; moIter.next()) {
moIter.remove();
}
cout << "Map zise = " << map_.size() << endl; // Prints zero

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C/C++ :: Removing A Name From A Vector

Nov 3, 2014

I'm supposed to create a program that stores names and then the final function is supposed to remove a name. But it only removes the first name instead of the inputted name.

the problem with names.erase(names.begin()+i)?

#include <iostream>
#include <string>//include for string function
#include <vector>//include for vectors

[Code].....

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C++ :: Singly Linked List - Delete Duplicate Nodes

Oct 10, 2014

I don't know why my code is not working. It's from line 249 - 266

void SLL::deleteDuplicate(){
Node* temp = head;
Node* p = temp;

[Code].....

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C++ :: Storing 10 Elements In Array And Delete Duplicate Terms

Jul 19, 2014

How to store 10 elements in an array and delete the duplicate terms ? ( its a single dimension array )

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C :: Removing Item From A Queue

Aug 17, 2014

I'm having a problem with removing an item from a queue. At first in the debugger I got SIGTRAP but I don't get it anymore but the problem still exists. When you try to remove an item from the queue the first nothing happens. Here's the code below compile it and you see what I'm talking about.

Code:

#include <stdio.h>
#include <stdlib.h>
struct Node {
char let;
struct Node *nextNode;
};

[code]....

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C++ :: Removing Characters From A String

Nov 1, 2013

I want to remove a particular character from a string. Say '.'. I've tried the following:

void removeDots(std::string &x)
{
std::remove_if(x.begin(),x.end(),[](char c){return (c == '.');});
}

This has the effect of removing the dots but keeping the length of the string the same, so old characters are left over at the end. Is there an extra action to do to x to make it the right size or is there a better way of doing it?

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C++ :: Removing Punctuations Off From A String

Jun 5, 2013

I'm working on a problem in which I've to design a program in which the punctuations should be removed from the string. For eg., if input str is: "Hello!!"; the output must be: "Hello".

I'm not sure how to remove a sub-string (if that's the right word!!) from a string. So, I designed a program which print out the punctuations. For eg., if input str is: "Hey!!"; the output would be: ! !

Here it is:

#include <iostream>
#include <string>
using namespace std;
int main (){
cout << "Enter a string" << endl;

[Code] ....

So, I want to know what should be added to this program so that the punctuations can be removed; or should I rewrite another program for that?

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C++ :: Removing All Non-doubles From A String

May 19, 2014

I have many random strings that look something like this:

" 55.343 Char 1.3825 asdf 0.1853 500 1.1359 4.0000 1 100 4.5043"

Notices how there are ints and chars and doubles in the string.

How do I remove all non-doubles for a string like this? The chars and ints may be anywhere within the string.

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C++ :: Removing From A Vector Of Sets?

Apr 18, 2014

I have a vector of sets in which I wish to remove a set from the vector, if it contains a certain value, is there any way of doing this?

for(int j = 0; j <= clauseVector.size(); ++j){
if(clauseVector[j].find(find) != clauseVector[j].end())
std::cout << "FOUND: " << propagator << "
";
}
}

This is what I have been using to find the element, but is there a way to remove the set that contains the element?

If needed I can include the full code

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C/C++ :: File I/O And Removing Duplicates

Nov 18, 2014

I have a program that's supposed to read in a file with comma seperated values. This file contains duplicates. The goal is to write a new file that does not contain any of the duplicates. I've successfully written the code to read in a file and create a new, identical file, but I'm failing at deleting the duplicates.

The format of each line in the file is: index,first_name,last_name,address,city,state,zip_code

Example: 1,John,Savage,579 Lone Street,Providence,RI,02903

As a requirement for the assignment, I've defined a Person class:

//File: Person.h
struct Person {
string index;
string first_name;
string last_name;

[Code] .....

This code writes the file I want (overlooking the duplicates) if I implement my equality operator as follows:

bool operator ==(const Person &a, const Person &B)/>
{
return false; //placeholder
}

Obviously this doesn't get the job done, since it will never detect a duplicate. The problem is that whenever I try to write any meaningful code, the program writes an empty file. The idea I've been trying to implement is to compare each of the members of Person like this:

bool operator ==(const Person &a, const Person &B)/>
{
//if two Person objects have equivalent names, they are duplicates
return ( (a.first_name == b.first_name) && (a.last_name == b.last_name) )
}

At first I thought the program was working just as before, but then deleting each line of the file as the result of an error in my code. However, I tried troubleshooting the problem by adding in

cout << a.last_name;

to parts of my code so I could see the value in certain places. Whenever I add this line or try to access a member of Person, the program writes a blank file.

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C# :: Removing Items From ListBox

Mar 5, 2014

I'm working on creating a windows form with a listbox, textbox, and 2 buttons (add,remove). I need a way of removing every string matching the contents of the textbox from the listbox. Here's what I have:

for (int i=0;i<listBox1.Items.Count;i++)
{
//...
listBox1.RemoveAt(i--)
}

Seems to work, but I need a way to show a error message once the user clicks 'remove' and no items in the listbox match.

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