C :: Changing Cents Into Individual Denominations

Sep 16, 2013

I haven't actually learned how to use arrays yet but I know the basic principle of it and decided to try and implement one to improve my code. I'm sure the thing is a bug ridden mess but I would particularly like to point your attention to the function sortDenomination(). Is what I am trying to do in the loop possible?

The reason why I want to do it this way and not with if statements for each denomination is because I can then easily apply this to the second part of the assignment which sees us split a double into dollars and cents and then process each separately. All I would have to differ for each is change the money_loop variable to include the last two denominations in the array.

Code:
#include <stdio.h>
/*Reads cents input from the user.*/
void getCents(int &read_cents) {
printf("Please enter the amount of cents between 5-95:

[Code] .....

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C++ :: Convert Money To Denominations

Sep 26, 2013

Given any amount of money expressed in dollars, and cents, this program computes the number of 100 , 50, 20, 10, 5 and 1 dollar bills and number of quarters, dimes, nickels, and pennies to be returned, returning how many of each denomination are included.

How to program it correctly for the most part except I cannot figure out how to handle large numbers, such as 14.49999999999999999999999999999999.

When converting that number to int by multiplying by 100 it returns it as 1450 not 1449. How to handle converting doubles, similar to the one above, to an integer correctly?

This is the code that my teacher did not want, since I handled the input as a string:

#include <iostream>
#include <string>
#include<iomanip>
#include<windows.h>
using namespace std;

[Code] .....

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Visual C++ :: Convert Money To Denominations?

Sep 26, 2013

Problem:Given any amount of money expressed in dollars, and cents, this program computes the number of 100 , 50, 20, 10, 5 and 1 dollar bills and number of quarters, dimes, nickels, and pennies to be returned, returning how many of each denomination are included.

I figured out how to program it correctly for the most part except I cannot figure out how to handle large numbers, such as 14.49999999999999999999999999999999.When converting that number to int it returns it as 14.50. How to handle converting doubles, similar to the one above, to an integer correctly?

This is the code that my teacher did not want, since I handled the input as a string:

Code:
#include <iostream>
#include <string>
#include<iomanip>
#include<windows.h>
using namespace std;
int main(){
const int hundredsConst=10000, fiftiesConst=5000, twentiesConst=2000, tensConst=1000;

[code].....

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C++ :: Getting Optimal Change In Cents

Sep 4, 2014

On one of my assignments I have to find the optimal change. For example, if I were to have 70 cents and had only quarters, dimes and pennies, the best way to receive change using less coins all together would be 2 quarters and 2 dimes (4 coins all together should be displayed).

All in all, I understand my assignment, however there is something I don't know how to do (or can't recall how to) and that is finding the the highest number in an array to use in a function and be able to compare it.

#include<iostream>
using namespace std;
//function in which amount = money, changeArray is the array where money is stored,
//and numCoins the amount of coin types there are available in the array

int optimalChange(int amount, int * changeArray, int numCoins) {

[Code] .....

What I'm stuck with, is that I don't remember how to get the highest number from the array that way I can compare it with the total amount when I'm building my function. Also, the function has to call itself recursively.

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C++ :: Coin Program Not Taking In Amount Of Cents In Input

Mar 1, 2013

I'm currently working on a program to take the user's input as DDDD.CC and then converting it to the least amount of coins using quarters, dimes, nickels, and pennies. I was told to not use any doubles or floats as they would produce errors. And supposed to the use the library function atoi() after I take the input user's amount as a string to convert it into an integer.

So far the string input has worked and it produced the right number of quarters but it leaves off the cents. For example, I put in 352.23 and it gives the right amount of quarters but leaves off the 23 cents.here's my code:

#include <iostream> // Allows the program to perform input and output
#include <stdlib.h> // Atoi
#include <string>
using namespace std ; // Enables a program to use all the names in any Standard C++ header
int main() // Start of program execution {
string line ;

[code]....

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C++ :: Cents Calculator - Declaring Values Of Dimes And Quarters

Feb 1, 2013

How to declare the values of the the dimes and quarters in my program. The purpose of it is to add up the total number in cents while at the same time making sure the program is universal to be used with different numbers.

Here is my code.

/*Take the number of dimes and quarters and get the total ammount of cents*/

#include <iostream>
using namespace std;
int main ( ) {
int dimes,quarters,result,amount_1,amount_2
int result;

[Code] ....

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C :: Take Integer And Splits It Into Individual Numbers

Oct 9, 2013

I'm supposed to write a code that takes an integer and splits it into individual numbers e.g. 234 becomes 2 3 4 .the individual numbers are then passed on to a function that accepts only one number at a time

All i could think of was this,but its a very bad method coz i dont know how long a number would be inputed into "Angle_in_degree"

Code:
int Angle_in_degree,a,b,c
c= Angle_in_degree %10;
b=Angle_in_degree/10 %10;
a=Angle_in_degree/100 % 10;

function(a);
function(b);
function(c);

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C++ :: Counting Individual Vowels In A Sentence

Dec 23, 2013

I'm trying to get this program to work that will count the frequency of each vowel.

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

int main(){
char sent[81];
cout << "Type up to an 80 character sentence." << endl;
cin.getline(sent, 81);

[Code] .....

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C :: Manually Save Data In Individual Bits

Mar 18, 2013

I'm a C beginner. I have questions, let say if I have a structure of message containing of Id, Length, and 3 bytes of data, and I want to manually saved in individual bits of data, how can I do that? I confused on how to use typedef struct and union. Below is the sample code:

typedef struct {
uint8_t Id;
uint8_t Length;
uint8_t DataField[3];
}AA;

[Code] .....

By the way, the DataField is declared as above. It's not necessary for a data to be 24 bits. It can be bit 0 - bit 8, it can be bit 10 - bit 15 and so on. So, for each case, I want to ignore the other bits.

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C :: Replacing Individual Chars In A String Array?

Nov 16, 2013

I'm trying to right the function that puts the correct letters in the right positons being reported from my previous compareletter function for my game of hang man and its not updating the word in progress array. Here's my compare letter function that's working correctly:

Code: //function that returns the index of the letter that the user has guessed or Code: //-1 if the letter isn't in the word
int CompareLetter(char array[], char guess, int numLetters)
{
int i;

[Code....

However, this isn't changing any of the position of the asterisks in the word in progress array positions 0-3.

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C++ :: Assigning Colors To Individual Characters In Array?

Aug 31, 2014

Basically I am making a console RPG (isn't every beginner nowadays?) and I am having an incredible amount of trouble assigning specific characters their own color. e.g. monsters being red, cash being green, etc.

I took out Left, Right, and Down controls because of character constraint.

#include <iostream>
#include <windows.h>
//%%%%%%%%%%%%%% COLOR CALL %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
void setcolor(unsigned short color) {
HANDLE hcon = GetStdHandle(STD_OUTPUT_HANDLE);
SetConsoleTextAttribute(hcon,color);

[code]....

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C# :: Unable To Change The Individual Keyboard Layouts

Jan 14, 2014

i am developing a multi-lingual application allowing users to change language as well as keyboard layouts (through combobox). I am able to change the culture of application successfully but i'm unable to change the individual keyboard layouts e.g. for English (United States), im unable to change layouts from QWERTY (default) to Dvorak - Left hand etc... I don't just want to change the input language, i was also want to be able to type in different keyboards. Here's the code (e.g. for English language), the imports etc are added already..

CultureInfo TypeOfLanguage = CultureInfo.CreateSpecificCulture("en-US");
System.Threading.Thread.CurrentThread.CurrentCulture = TypeOfLanguage;
InputLanguage l = InputLanguage.FromCulture(TypeOfLanguage);
InputLanguage.CurrentInputLanguage = l;

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C++ :: Maps - Referencing Individual Members Numerically (as With A Vector)

Feb 9, 2014

I have code working, but that is largely because a vector that I am using as part of a structure that is the first of two elements of a MAP (with the second being an integer that is assigned later) is serving in its original, purely vector form, to fill out a set of selections on a DOS screen (option 1, 2, 3, etc.).

I do use the MAP, because it is a simple means of referencing the integer value using a word that is part of the structure, and is probably appropriate, saving me a search through the vector of words and calling up the value at the same location in the vector of words in a vector of corresponding numerical values. I DO feel that what I'm doing to produce the selection list is something of a "cheat" because I do not know how to access the same data within the structure component of the MAP by simply using a similar numerical reference (e.g. "MAP[1].structure.word", or would that be "MAP.structure.word[1]" ????) to print out the words in the structure in the map as choices on the screen.

I don't want to change or expand the contents of the map, just access and print each one in a simple loop with a number from the loop counter to the left of each word.

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C :: Creating Black Bitmap - How To Set Color Of Individual Pixel

Nov 2, 2014

creating a bitmap. Our professor wants us to creat a black 100*100 bitmap.

Code:

#include <stdio.h>
#include <stdlib.h>
#pragma pack(push,2)
typedef struct{

[Code].....

I dont even know where to start. I spend the last 7h infront of my computer and i'm so frustrated cause my professor gave us no information what so ever. At the moment its more of a trial and error process than anything else.

How would i set the color of an individual pixel for examplel or how would i save the file ?

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C :: Turning String Of Numbers Into Array Of Individual Integers

Mar 2, 2014

In my program, I am fed a string that contains integers such as Code: *str = "45678" and my program is simply supposed to read the number in and store each given number in a separate spot in an integer array. So basically, when my program has finished running it should be stored like:

Code:

arr[0] = 4
arr[1] = 5
arr[2] = 6
arr[3] = 7
arr[4] = 8

The way I have been attempting to do this was just copying it to the array like so:

Code:

arr = malloc(sizeof(int) *(strlen(str));
for (i=0; i<strlen(str); i++) {
a->digits[i] = str[i];
}

however, this just seems to return an impossibly high garbage value when I do. I'm assuming the way I'm trying to store it is 'illegal', but I cant seem to find online a proper way to do it.

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C++ :: Separate Input Integer Into Its Individual Digits And Print

Apr 18, 2013

Write a full C++ program that inputs three-digit integer, separates the integer into its individual digits and prints the digits separated from one another. For example, if the user types 549, the program should print;

5 4 9

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C++ :: Splitting RGBA Into Individual Bytes By Creating Union

Jan 16, 2013

I am currently working with win32 API , for image processing, one of the windows function returns RGBA ( colors ) as unsigned int , I then split it into individual bytes by creating a union ,

Code:
union colour {
unsigned int value;
unsigned char RGBA[4];
}

to spit the int into individual bytes, my Question is there a better or my convenient way of doing this.

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C :: Creating Linked List Of Students With Individual Data Read From A File

Aug 27, 2014

In the program I'm writing, I'm creating a linked list of students with individual data read from a file. At the moment, I have written two functions to accomplish this; one that creates a student node and fills it from a line file, and a second that calls on the first to create a linked list. It seems to work fine except for one thing; It seems that EOF is being reached first, but the function continues on anyways? Here is my code so far...

Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
struct student
// Declaring student structure globally.

[Code] .....

And here is what the input file would look like...

Thui Bhu, 100, 90, 80, 100, 89, 99, 88
Ariana B. Smith, 90, 90, 100, 100, 99, 100, 95
Emily Gonzales, 100, 90, 100, 70, 78, 78, 80
Jennifer L, 80, 90, 90, 100, 89, 99, 85
Maria Jones, 65, 72, 77, 68, 62, 70, 65
Bill Gates, 60, 54, 38, 62, 65, 60, 50
Escobar Morris, 83, 77, 88, 76, 79, 72, 76
Anne Latner, 80, 80, 85, 95, 90, 95, 98
John Doe, 45, 87, 88, 89, 67, 96, 79

And here is what the output is...

EOF

EOF in create_record

Thui Bhu: 100 90 80 100 89 99 88
Ariana B. Smith: 90 90 100 100 99 100 95
Emily Gonzales: 100 90 100 70 78 78 80
Jennifer L: 80 90 90 100 89 99 85
Maria Jones: 65 72 77 68 62 70 65
Bill Gates: 60 54 38 62 65 60 50
Escobar Morris: 83 77 88 76 79 72 76
Anne Latner: 80 80 85 95 90 95 98
John Doe: 45 87 88 89 67 96 79
Press any key to continue . . .

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C++ :: Eliminate Comma And Split String Into Individual String Variables

Nov 15, 2013

I have this string d ="3 J JD, K" and i want to split the string to individual string. I have this code which eliminates the comma but doesn't split the string into individual string.

#include <iostream>
#include <string>
#include <sstream>
using namespace std;
int main() {
string str = "3 J JD,K";
stringstream ss(str);

[Code] ....

Output of the code is
3 J JD
k

but I want
3
J
JD
K

Also after I split the string is there any way to put the split string into individual string variables.

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C++ :: Input Integer Then Output Both Individual Digits Of The Number And Sum Of Digits

Oct 11, 2014

My problem needs to prompt the user to input an integer and then outputs both the individual digits of the number and the sum of the digits. An example would be entering 8030 and it spits out 8 0 3 0 as well as 8+0+3+0=11 and it needs to work with negative numbers.

Code:
#include <iostream>
#include <iomanip>
using namespace std;
int main() {
int base;

[Code] ....

Now I don't know if any of this is right a hint my professor gave us is that to get the fourth digit you would do base mod 10 and to get the first digit you do base divided 1000...

Code:

{
int power;
int counter=0;
int value=1;
cout << "Enter the power of 10 you want: ";

[Code] ....

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C++ :: Changing The Value Of A String?

Dec 17, 2013

If I was to input for example 'x' into my program, how could I change that to something like 'HuS581' every time that specific character was inputted?

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C :: Changing The Value Of Something From A Function

Oct 30, 2013

I was talking to someone earlier about how to change the value of something from a function, and they said what was needed was to use a ** to change something, and was wondering if I could get a walk - through of what happens. I understand a single pointer well enough, but a pointer through a pointer is kind of confusing to me. Here is a simple example.

Code:
#include <stdio.h>
#include <stdlib.h>
#define SIZE 5
int add(int ** TOP, int * stack);

int *stack = NULL;

[Code] ....

Why is it that when the program prints the address of TOP in main, it is different than the address of TOP in the function? Is it because it is a different instance of TOP because it is in the function? When I put the number on *TOP, and come out of the function back to main, it then says the address of TOP is the number entered into *TOP, and am not sure why. And the **TOP ++ at the end I am thinking it increments malloc by 1, therefore bringing the pointer TOP up to point at the next element, or am I completely off base there?

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C++ :: Changing Const Int Value?

Nov 7, 2013

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

// cin.get() <-------------- used to let the user read the screen

// Function prototypes
void calcSales(const int [], const double [], double [], int);
void showOrder(const double [], const int [], int);

[Code] ....

How can i change the "const int NUM_PRODS = 12;" from saying id 1, id 2, id 3, etc. to custom product numbers?

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C++ :: Changing Some Bit Of A Number

Jan 1, 2015

I use miracle library to work with big numbers. I defined a number for example X with 192 bit. at first X= 0 ;I want to change for example 3 bit of it to 1 randomly.as a example:

assume that X has 10 bit :
X=0000000000
random numbers should be :
1000010001
1010100000
1100000100

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C/C++ :: Changing Complexity From O(n) To O(1)

May 5, 2012

For the following code :

 s = 0 ;
 for(i=m ; i<=(2*n-1) ; i+=m) {
            if(i<=n+1)
            { s+=(i-1)/2 ; }
           else
            { s+=(2*n-i+1)/2 ; }  
      }  

I want to change the complexity of the code from O(n) to O(1) . So I wanted to eliminate the for loop . But as the sum "s" stores values like (i-1)/2 or (2*n-i+1)/2 so eliminating the loop involves tedious calculation of floor value of each (i-1)/2 or (2*n-i+1)/2 . It became very difficult for me to do so as I might have derived the wrong formula in sums of floors . Need Changing complexity from O(n) to O(1). Is there any other way to reduce the complexity ? If yes ... then how ?

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C++ :: Changing From BigInteger To GMP?

May 15, 2012

I have this code which previously used the BigInteger library, however now I have GMP installed and I want to use that instead.

I have read the manual but I cannot figure out how to use GMP in this function without getting errors.

Here is the function:

Code:
int lucas(long p){ //p is a number in the range of 2 up to 50,000,000, possibly bigger
int s = 4; //previously assigned as a big integer
int z; //used in the for loop below
int M = 2; //previously assigned as a big integer
for(z = 1; z < p; z++){ //this accomplishes the same as 2 to the power of p, and is stored in M
M *= 2;
}
M--;

[code]....

I can initialize variables using the gmp library, but when I'm trying to use the mpz_pow_ui() function I get errors because it wants me to use long integers, which are too small for the numbers I want to work with.

How can I re-write this function to use GMP?

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