C/C++ :: Linked List Inputs From The User?

Sep 8, 2014

#include <iostream>
using namespace std;
void insert(int data, int positionOf_n);
void print();
struct node {
int data;
struct node *next;

[code]....

this is the original code which use the insert function call in the main as predefined that doesn't allow the user to input the value that they want

#include <iostream>
using namespace std;
void insert(int data, int positionOf_n);
void print();
struct node {
int data;

[code]....

and this the code which i tried to replace the limitation of the above code by using two for loops in the main function instead of the <insert(5,2)> from the above code which allow the user to insert it own values to the linked list, but it keeps crashing.

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C :: Linked List - Allow User To Add A New Node

Aug 12, 2013

I'm trying to impliment a simple singly linked list, then allow a user to add a new node. I have mocked up a siimple example to illustrate my point using Linked Lists...

Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
struct node {
int x;
struct node *next;

[Code] ....

So I have done things similatr to this in C# and Java but not in C. There maybe some parts of this I'm sure some will disagree with in terms of buffers,overflow etc. but it's just the linked list part that I am interested in at the moment, I am only doing it like this because when it works, I will be extracting the working linked list stuff into another program that can deal with its I/O etc.

I have tried to comment as best I can to demonstarte my intentions and understandings per line of code. The add function needs to add a node of value x that the user has input, and add that to the end of the list - I'm sure that the print function is not doing all its supposed to do...

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C++ :: Input Data Of Object From User And Then Insert It In Linked List

May 16, 2013

Error:
--------------------Configuration: nc - Win32 Debug--------------------
Compiling...
cv.cpp
Linking...
LIBCD.lib(crt0.obj) : error LNK2001: unresolved external symbol _main
Debug/nc.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.

nc.exe - 2 error(s), 0 warning(s)

Compiles with 0 error but on running 2 Errors appear.

I'm Inputting data of an object from user and then inserting it in the link list.

#include <iostream>
//#include <fstream>
using namespace std;
#define LEN 100
////////////////////////////////////////////////////////////////////////////////////////////////////
class employee{

[Code] ....

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C++ :: Calculator That Takes Two Large Numbers In Linked List Then Ask User To Add Or Subtract

Dec 30, 2012

What I'm trying to do is make a calculator that takes two large numbers in a linked list then ask the user if they wish to add them or subtract them.

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

class Node {
public:
int value;
Node * next;

[Code] ....

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C :: 2 User Inputs For Calculation

Apr 9, 2014

I want to have calculations take place inside a switch statement that calls the appropriate function. The menu portion of the program works well, but I can't figure out how to let the user actually input 2 different numbers to the functions. My questions are:

1. If I use scanf to assign values to the variables, what determines end of input to each variable? (ie.. scanf("%d%d", &a, &b) what is the end of a, what is the end of b?)

2. Should I assign the variables to user input inside the switch, or try to do it in the functions below?

3. Is there something I haven't thought to ask that will screw me over? I'm really new to this.

Code:
#include<stdio.h>
int add(int b, int a);
int mult(int b, int a);
main() {

[Code] ....

This really was a test of multilayer menu, but I want to add functionality if I can.

Changed a variable before posting and didn't change all the conditions testing it.

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C :: Keep User From Putting Inputs

Sep 27, 2013

On my program I use a counter to count to 10, then i ask for a string, in this case "yes" or "no", during the count, i want to keep the user from putting inputs in, due to the fact that if they put both "yes" and "no" before the program reads the string.

Code:

#include <stdio.h>
#include <time.h>
#include <stdlib.h>
#include <stdbool.h>
#include <time.h>
#include <string.h>
}

[code]....

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C :: How To Put What The User Inputs Into Array

Jul 23, 2014

I have a project that requires I take user input from menu options and put it into an array which I will average out. I can set the menu up I think, but I cannot understand how to put what the user inputs into an array. Granted I just took the lecture on arrays today. Also we can only use functions to do the work.

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C/C++ :: How To Get User Inputs Into Array

Mar 16, 2014

How to get user inputs into an array. I have to get 10 user inputs into the array and I'm trying to use a loop but once I run it it crashes whenever you input the first value. This is my absolute first time working with arrays and I've been trying to do research

#include <stdio.h>
#define SIZE 10
void Input(const int array1[]);
void Calculations(int array1[], int average);
void Output(int array1[], int average);

[Code]....

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C :: Picking And Choosing Between User Inputs

Jul 31, 2013

I have recently looked into a self created project where I wanted to compare user input against a list of strings in an external file. That has since been completed to my great satisfaction, however it did throw up some interesting issues in my knowledge and understanding of user input..What is the best way to pick up user input i.e scanf,stdin etc. and when should either be used and can a mixture of types be used, and if so, when and why.

A quick program to take different input methods and display differnt output method (obviously corresponding i.e scanf/printf - fgets/fputs)

My first pothole came when I have setup the method for scanf - fine. Then I setup the method for fgets(test,100,stdin) for example and the fgets method no longer picks up stdin from the user..

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C++ ::  calculating Sum Of Numbers Between Two User Inputs

Mar 17, 2014

How to calculate the values between numbers that a user types in.

Write a function which takes two parameter of integer type and both parameters are positive integer. These number should be provided by the user of your program. The first parameter is lower than the second parameter. You function should be able to calculate the sum of the square of each of the numbers between the two inputs and should display that. Please write a main function to display the working of your function. Call the function at least three times by using some loop in the main function.

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C :: Stomp Size Of Array With What The User Inputs?

Apr 5, 2013

How can I stomp the arr size of 50 with the value the user inputs? The function doesn't sum up the even integers from 0 to the value the user inputs. Instead it sums up exactly that many even integers.

Is there a way I can stomp the size of the array with what the user inputs so that the sum calculation never goes past the value the user inputs?

Code:
void sumIntegers () {
int arr[50];
int i = 0;
int num = 0;
int sum = 0;
printf("

I want to sum up even integers <= 50.

[Code] .....

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C++ :: For Loop - Summing Numbers (Inputs From User)

Aug 2, 2013

Write a program that computes a running sum of inputs from the user, terminating when the user gives an input value of 0

Using a while loop - no problem. Its only when I try to code it with a for loop that the program doesn't terminate with a 0 input. It terminates with a -1 input!!

while loop

#include <iostream>
using namespace std;
int main() {
float input=1;
float sum = 0;

[Code] ....

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C++ :: Create Fibonacci Sequence With Some User Inputs

Aug 26, 2013

I'm trying to make a fibonacci sequence with some user inputs. I'm using arrays for this, the user inputs are for the Nth term and the starting number (as in the number in front of 0).

My problem is that when the program runs it's an infinite loop which constantly prints the starting number. Which, I think, means that my WHILE loop isn't coming to an end and my 'count' variable isn't increasing.

#include <iostream>
using namespace std;
int main() {
int start;
int term;
cout << "Input a starting number for the sequence: ";
cin >> start;
cout << "
Enter the Nth term for the sequence to reach: ";

[code].....

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C++ :: Templates User Inputs Dynamic Array?

Nov 12, 2013

This code is from my text book it shows how to implement code that is embedded I have modified it somewhat but I was wondering how I could get the user to implement the size of the array and enter the integers with the size of array that was implemented.

#include<iostream>
#include<cstdlib>
#include<iomanip>
using namespace std;

[Code].....

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C++ :: Random Number Generator - How To Get User Inputs

Sep 10, 2013

I want to program a program that produces a random number between 1-10, then if the number is correct, says like HEY GOOD JOB and if its not says try AGAIN! also, at any point the user can quit by typing in X.

I know that I can use stuff like cout << "Hey put in a guess now" to prompt the user but I dont know how to accept inputs.

For example, how do I use scanf to do this?

I know that if I use scanf, it takes in a value, but where the heck does it store it?

eg. scanf(%s,guess);

Is that valid? I get an invalid expression error when trying to use that in C++.

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C++ :: Determines Whether A Number Which User Inputs Is Prime Or Not

Jan 11, 2015

I am fairly new to C++ and I am trying to write a code that determines whether a number which the user inputs is prime or not. I have the code, but when I run it all it actually does is report odd numbers as prime and even numbers as not prime.

#include <iostream>
using namespace std;
//declaring variables//
int i;
int num;

[Code] ....

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Feb 17, 2013

I want to create a grading program that the user inputs a name and then on that value (name) there is a vector of doubles to represent his/her mark and then calculates an average how would I go about doing this?

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C++ :: Using Char To Check Whether The User Inputs The Right Command?

Mar 20, 2014

I've been trying to finish this airplane seating program I've been working on for a month or two. The problem I have right now is that if the user inputs a number when prompted to enter the column letter he wants, the program goes on to the next step as if the prompt had been answered correctly.

So I originally used string but I heard from Daleth that Char was better, but I don't know how to apply it. I figured out cin.fail, but I've yet to finish this part.

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C++ :: When User Inputs It Doesn't Show The Function

Aug 2, 2014

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

[Code]....

i have already tried putting system pause or cin.get after it, but no luck

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C :: Give Error Message If User Inputs Wrong

Nov 2, 2013

Code:

#include<stdio.h>
void main
{
int i;
int marks[10];
}

[code]....

how to give error and ask user to re enter if user enter other then a number?

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C++ :: Calculate GPA - Divide Depending On How Many Times User Inputs A Value

Feb 27, 2014

For example, to calculate GPA, we add all the grade point of a course and divide by the number of courses we are taking. How do I create a program in such a way that when the user enters grade point for two courses, it will add the grade points for the two course and divide by 2. And if another user enters grade points for six courses, it adds the grade points and divides by 6.

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C++ :: Creating A Linked List Of Common Elements From Two Other Linked Lists

Apr 29, 2013

I'm trying to write a function that takes two linked lists and creates a third one with only the common elements.

It assumes the first list (the caller) has no dups, but it doesn't seem to be working. The program doesn't crash, it just hangs when it is supposed to display L3 (the third list)..everything else runs and is displayed fine.

template <typename T>
LList <T> LList <T>:: common (LList <T> &B)//common fct
{
Node <T> *hunter1 = Head;

[Code]......

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C++ :: If User Inputs Letters / Words Instead Of A Number Give Error Message

Jan 11, 2014

I have created an error message if the user inputs the wrong selection number

if (choices < 1 || choices > 5)
{
cout << "
Please Enter a number between 1-5
";
}

How would i create a error message if the user inputs letters/words instead of a number.

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C :: How To Terminate A Loop If User Inputs Blank Space In A String Or Press Enter

Jan 28, 2015

Code:

#include<stdio.h>
#include<stdlib.h>
#include<ctype.h>
#include<string.h>
int main(void) {
int i;
char *str;
int len = 1;

[Code]...

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C :: Insert Linked List Into Another Linked List

Jun 29, 2013

I have a linked list comprised of chars like so...

Code:

node1 - "p"
node2 - "o"
node3 - "p"

I need a function that will take in three perameters...node *replaceChar(node *head, char key, char *str)Stipulations of this function. head is the head of the list, 'key' and 'str' are guaranteed to contain alphanumeric characters only (A-Z, a-z, and 0-9). str can range from 1 to 1023 characters (inclusively). So if I call this function with these perameters..

Code:

node *head == /*the head of the list to be examined*/
char key == "p"char *str == "dog"The new list will look like this...
node1 - 'd'
node2 - 'o'
node3 - 'g'
node4 - 'o'
node5 - 'd'
node6 - 'o'
node7 - 'g'

All instances of 'p' were replaced with 'dog' I have a toString function which takes in a string and converts it to a linked list and returns the head. So assume that you can call the function on str = "dog" so...

Code:

toString(str) == /*this will return the head to the list made from the str*/

If it's unclear what my question is...I am stumped on how to write the replaceChar function the one that takes in three perameters..

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C :: Linked List / Adding Element To Beginning Of List

Dec 31, 2014

Code:

// Write a function called insertEntry() to insert a new entry into a linked list.

Have the procedure take as arguments a pointer to the list entry to be inserted (of type struct entry as defined in this chapter), and a pointer to an element in the list after which the new entry is to be inserted.

// The function dveloped in exercise 2 only inserts an element after an existing element in the list, thereby prenting you from inserting a new entry at the front of the list.

(Hint: Think about setting up a special structure to point to the beginning of the list.)

#include <stdio.h
struct entry1 {
int value;
struct entry1 *next;
};

[code]...

This is a working version of the exercise, but I don't think I'm doing what's asked. I was able to add an element to the beginning of the list using an if statement, not creating a special structure that points to the beginning of the list. How would I go about creating a special structure that points to the beginning of the list to add a new element at the beginning of the list?

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