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].....
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]....
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.
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]....
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.
View 1 Replies View RelatedI'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].....
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
I have a vector of sets, which I am removing any element which contains a certain value. For example, if I was looking for 2:
[0] 1 2 3
[1] 4 5 6
After the program was run, I would be left with just [0]4 5 6.
This is the code I have been using
auto iter = std::remove_if( clauseVector.begin(), clauseVector.end(),[propagator] ( const std::set<int>& i ){
return i.find(propagator) != i.end() ; } ) ;
clauseVector.erase( iter, clauseVector.end() ) ;
I want to know, is there any way I can tweak this code so that it only removes one part of the set rather than the whole thing. For example with above example, I would be left with
[0] 1 3
[1] 4 5 6
I am working on a project for class where I use a parent Shape class with circle, rectangle, ect. Classes inheriting from that. Along side these I use a class called Scene. In main I need to create a scene and add some shapes to a vector in scene.
vector<Shape*> shapes
I need to use functions addShape(Shape* shape) and a delete shape method. I have the addShape finished. The problem I am having is with the delete method. Is there a way that I can use something like deleteShape(Shape* shape)? Is it possible for me to delete a specific shape from the vector by passing in that shape, or can it only be done using index? I have looked at the documentation for std::vector as well as std::vector::erase. I am wondering this because if I use index values and do something like
void Scene::deleteShape(unsigned int x) { shapes.erase(shapes.begin() + x ); }
It will lead to some errors later on due the the changing size and indexes of the vector and elements.
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] .....
I want to have it so that when i ask for the person witch item they want to drop on the ground it goes into another vector that i can pick back up the item if they want it back and erase when they walk away.
#include "stdafx.h"
#include <iostream>
#include <vector>
#include <string>
#include <fstream>
#include <cmath>
using namespace std;
struct InventoryItem
[Code] ....
I have a file where the first column shows letters, second column shows numbers.
How could I make it to print everything exactly how it is in the file – a vector/array with strings and integers?
Alright I hav a program that readings from a txt file but is there a way to replace some of the words that get loaded into the vector so for example if the txt has a list of animals and i want to replace the word bird for book is their a way to do that
#include <iostream>
#include <string>
#include <vector>
#include <fstream>
[Code]....
I'm having trouble storing a string in a vector.
I keep getting the errors in lines 51-54: no suitable constructor exist to convert from
#include <iostream>
#include <string>
#include <vector>
#include "Movie.h"
using namespace std;
vector <string> movieActors;
void promptForMovie(Movie & myMovie);
[code]....
I'm trying to write a program that reads in from a .txt file the movie title, rating, director, actors etc. All I want to do is to just sort movie titles alphabetically and print all its attributes(director, actors). I tried using sort( movies.begin(), movies.end()) method, but it doesn't work.
here's my code btw:
#include <iostream>
#include <string>
#include <vector>
#include <fstream>
#include <algorithm>
#include <iterator>
#include "Movie.h"
[Code]...
I thought that C++0x made it possible for vectors to be initialized with an initializer list, such as:
Code: vector<vector<string> > vv {{"hello", "goodbye", ""}};
I tried this syntax in both VS 2010 & VS 2012 Express For Desktop, and I get the same error in both compilers:
compiler error: non-aggregates cannot be initialized with initializer list
To put the code above in context, I'm going to have a .txt file with hundreds of thousands of string arrays, in initializer list format, such as:
{"string","string","string","","",""},{"string","string","string","","",""},{"string","string","string","","",""}...and so on
The first 3 strings in each array will be non-zero in length, and the last 3 strings in each array will be empty, as shown above.
I want to be able to cut and paste the arrays right into the declaration, either with:
string arrayOfArrays[0][6] = {{"string","string","string","","",""},{"string","string","string","","",""},{"string","string","string","","",""}...and so on };
or
vector<vector<string> > vecOfVectors = {{"string","string","string","","",""},{"string","string","string","","",""},{"string","string","string","","",""}...and so on };
I know I can do the first, but apparently the second declaration method with vectors won't work. I would like to work with vectors, but I'm not sure about the initialization. The .txt file will be what it is, so the initialization will have to be able to work with its 'array-like initializer' format.
How could I search a vector element with multiple strings
i.e. vector.at(i) = This is a test
How could I search that to look for the word "test" in that element?
I'm trying to do a binary search on a vector of strings and keep getting this error. This is the PhoneEntry header file with the class declaration:
Code:
using namespace std;
#include<string>
#include<iostream>
#include<fstream>
#include<vector>
#include"phoneNumber.h"
[Code] .....
I have a vector of
strings.vector input;
bob
sam
bob
sammom
aardvark
money
aardvark
wanted
I need to remove the duplicates but each part of the vector corresponds to the next location. They are pairs.
ex. bob corresponds to the its definition, which is sam.
I need to keep the first instance, so keep bob and sam, but remove the second instance of bob, so remove bob and sammon. Only the first instance of the pair need to kept.
It doesn't matter if the sam and sammon don't match, all that matters is the first part of the pair.
The vector is already in alphabetical order. I can't use the algorithm library.
The code is supposed to take either an int or a string (and their respective vectors) and insert a given int or string into the vector in ascending order. My code works properly for ints, but it's having a problem with strings.
The order I get with the strings given is
penguin
banana
great
jungle
For some reason comparing penguin to banana/great doesn't give the expected result. The template attached only includes the function and the private vectors needed for the function.
template<class T>
class orderedList {
public:
void insert(const T& item);
private:
vector<T> list;
int total = 0;
[Code] ....
I have read that the Erase-remove idiom is the way to go. I have a rough understanding of how this works but am unsure whether I can implement a match-counter along with it.
For counting alone, I would use something like this:
Code:
std::vector<std::string> v; // contains duplicate strings in different elements
std::string term = "foo"; // search term, changing at runtime as well
unsigned int matches = 0;
for( auto e : v ) {
if( e == term ) {
[Code] .....
I'm not sure how (or if) I can combine the two things. That is, I don't know how to integrate a function comparing two (changing) strings into the remove_if() method. Nor do I know how to increment a counter during iteration.
The vector is extremely large, so speed is paramount. I think there are many other avenues for optimization, but decreasing the vector's size for each consecutive search could deliver a big speed boost for subsequent searches I imagine, as traversing it holds the biggest cost.
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] .....
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] .....
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] .....
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.
View 1 Replies View RelatedI 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] ....