C/C++ :: Converting Two Digit Hexadecimal Number To Binary Representation

Jan 25, 2014

The program is supposed to convert a two digit hexadecimal number to its binary representation. My code runs without any problems but I do not know how to limit the user's input to two digits only. For example the person can input "1ABC" and the program will give the binary representation and I need it to only accept two digit only like for example "1A".

#include<stdio.h>
#define MAX 1000
int main(){
char binaryNumber[MAX],hexaDecimal[MAX];
long int i=0;
printf("Enter a two digit hexadecimal number: ");

[Code] ....

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C/C++ :: Converting Number Into Binary Or Hexadecimal Or Octal Using Arrays

Mar 1, 2013

Write a program in c++ to accept a number and convert this number into binary or hexa decimal or octal number according to the user choice using the concept of array.

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C++ :: Converting 4 Digit Number Into BCD Number?

Sep 10, 2014

I'm having trouble converting a 4 digit number into a BCD number, in the program I did below I was able to convert a 2 digit number into BCD, but I do not know how to convert a 4 digit number or how to start it.

#include <cstdlib>
#include <iostream>
#include <string>
using namespace std;
int main(int argc, char *argv[])

[code]....

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C++ :: Convert 8-digit Binary Number To Decimal Number?

Jul 6, 2013

Code: Complete the program below which converts a binary number into a decimal number. Sample outputs are shown belowComplete the program below which converts a binary number into a decimal number. Sample outputs are shown below.

Sample Output 1:

8-bit Binary Number => 11111111
Decimal Number = 255

Sample Output 2:

8-bit Binary Number => 10101010
Decimal Number = 170

Sample Output 3:

8-bit Binary Number => 101010102
Number entered is not a binary number

#include <iostream>
using namespace std;
int main()
{
int num;

[code]....

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C :: Converting Letters To Hexadecimal

Jun 3, 2014

i m trying to write a code that would convert a each letter from a text to their decimal images . while i was able to write the part of entering the text , i cant do the converting part , i searched all day on the internet and found nothing.

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C# :: Converting Decimal To Hexadecimal

Feb 20, 2015

I am new at programming and I have some questions about converting decimal to hexadecimal WITHOUT using .net library. The problem is, that I don't know how to do vice versa. (if you type 1254, program returns 6,14,4. I want programm to return 4,14,6- this is almost hexadecimal number (14 is not converted to "E")). Also the task is, that program has to return value in string form.

static void Main(string[] args) {
int a = 0;
int result = 0;
int n=1000000;
int[] array = new int[n];
Console.WriteLine("Insert numbers");
a = int.Parse(Console.ReadLine());

[Code] ....

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Visual C++ :: Converting Decimal Number Given By User To Binary?

Dec 19, 2014

Write a C++ program that adds three binary numbers of 8-bit each. Every number is stored into an array of 8 elements.

Example:

Array A
0 1 2 3 4 5 6 7
0 1 1 0 1 1 1 0
+
Array B
0 1 2 3 4 5 6 7
0 1 1 0 1 1 1 0
+
Array C
0 1 2 3 4 5 6 7
0 1 1 0 1 1 1 0

Store the result into an array D of 8 elements. Your program should show the decimal numbers for every binary number. Print screen of 6 answers. This means you should try your program six times with different numbers in every run and show the printed screen result.

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C/C++ :: Swap A Digit From A Number With Another Digit Using Function

Oct 26, 2014

Write a function which will take 3 arguments. The function needs to return a new number which is formed by replacing the digit on a given position in the number with a digit which is carried as an argument (the position in the number is counted from right to left, starting with one). Write a main program which will print the newly formed number.

Examples:
A function call of 2376, 3 and 5 should return the number 2576
A function call of 123456, 4 and 9 should return the number 129456

What I succeeded to do so far:
Figure out the logic for swapping the digit and write working code for it (in the main function).

What I failed to do so far:
Write a function which will return the desired result.

What is my problem:
I tried writing a function to do this, but as you see from my calculations, my result is divided in 3 parts. I don't know how to return more variables from a function.

Code:

#include <stdio.h>
int main() {
int inputNumber, swapPosition, swapDigit;
scanf("%d%d%d", &inputNumber, &swapPosition, &swapDigit);
int i, numberPart1 = inputNumber;
for (i = 1; i <= swapPosition; i++)

[Code] ...

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C++ :: Print Hexadecimal Strings From Binary

Aug 19, 2013

How to search in C or C++ a hexadecimal patterns within a binary file.

For example:

String1:

Code: 0x44 0x65 0x07

Then, once found, extract those 3 bytes and the next 11 bytes (14 bytes in total).

Finally, from those 14 bytes, print without spaces "bytes 1 to 6", "bytes 6 to 12", and byte "13 to 14".

Then I would like to print last 2 bytes (13 to 14) joined in decimal format.

The output without any conversion would be:

Code:
446507c90688 888000800005 0015
4465072ec918 059173495269 002C
44650700cc01 01811bc90b00 00AB

But the output converting to decimal the last 2 bytes would be:

Code:
446507c90688 888000800005 21
4465072ec918 059173495269 44
44650700cc01 01811bc90b00 171

The sample file is attached, and looks like this:

Code:

06 00 00 80 00 00 00 80 09 3c c9 06 88 88 80 00
80 00 44 65 07 c9 06 88 88 80 00 80 00 05 00 15
37 06 01 00 00 01 00 65 00 00 00 02 00 00 02 00
18 00 00 00 03 00 00 03 00 17 00 00 00 04 00 00

[Code] .....

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C :: How To Convert Binary Table To Hexadecimal Value

Oct 2, 2013

i need to code a function that converts an array of 64 bits into a hexadecimal value, the one is tested gives me correct value except for the last hexadecimal letter.

Code:
#include <iostream>
#include <stdio.h>
#include <conio.h>
#include <fstream>
#include <cstdlib>
#include <string>
typedef unsigned __int64 Ebyte;
#define length 64

[Code] .....

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C :: Base Number Representation

Jul 23, 2014

I am using MCC18 for use with MPLAB.

0bnnnnnnnn means a binary representation.
0x00 means a hex number representation.

What does sd001 means? signed decimal 1? if so how do I represent a -1 using this sdnnnn format?

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C :: How To Convert Number 75 To Base 4 Representation

Mar 6, 2015

How to convert e.g. number 75 to base 4 representation? The result should be 1023. I plan to use uint32_t

x = a3.43 + a2.42 + a1.41 + a0.40 = a3.64 + a2.16 + a1.4 + a0

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C :: Use Main Function To Ask For Input To Convert Hexadecimal To Binary

Mar 15, 2013

Code:

#include<stdio.h>#define MAX 1000
int main(){
char binaryNumber[MAX],hexaDecimal[MAX];
long int i=0;
printf("Enter any hexadecimal number: ");
scanf("%s",hexaDecimal);

[Code]...

So this is my current code, is there anyway I can reduce the size and use a main function to ask for input and a call function to do all the conversion and return it? I am confused for the past few days trying to figure it out and finally ended up here. Anyway can I write it as a something like this

Code:

int main()
{
//ask for user input hexadecimal into here and call a let's say hex2binary() function
}

int hex2binary(...)
{
//an array with dynamic memory, malloc? and convert it and return values
}

I don't really need the full code, just a simple instruction on how and where to start.

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C :: Storing A 10 Digit Number

Dec 9, 2014

I wanted to find all the prime until a specified limit in C. I use the Sieve of Eratosthenes. But when I define the limit to anything more than a 7 digit number the program terminates.

Code:

#include<stdio.h>
#define limit 1000000000
int main(void)
{
unsigned long long int i,j;
int primes[limit] = {0};
//int count =0;
for(i=2;i<limit;i++)
}

[code]....

I believe that this might be because the size cannot be declared array cannot be more than the a 7 digit number. I think so. how to store a 10 digit number in C?And can't unsigned long long hold a 10 digit?

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C :: How To Get Each Digit Of A Number From Array

Apr 14, 2013

I have an array join[], some of its elements are single digit and some are numbers. I want to print the output in single digit form.Like in below code

Code:
int join[3]= {12,0,3};
int split;
int j;
for (j=0;j<3; j++) {

[Code] ....

My code won't consider array element "0". How can i fix it for that too.

Code: I want output should be like
1
2
0
3

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C++ :: Trying To Remove First Digit Of Any Number

Dec 18, 2013

I am trying to remove the first digit so if the user enters 12345 it should output 2345 the code i have works only for removing the last digit how would i go about removing the first one?

#include <iostream>
using namespace std;
int removeFirst(int n);
int main(){
int n, m;
cout << "enter number" << endl;

[Code] ....

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C/C++ :: How To Store 50 Digit Number

Sep 14, 2013

what is the data type of a variable to store 50 digit number in c? and what is the data type specifier for that?

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C++ :: Print Last Digit Of Number Output Always Become 6?

Oct 26, 2013

i just started learning programming and i just wanna know how come when i try to print the last digit of a number the output always become 6?

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C :: Storing 12 Digit Number On 32 Bit Architecture

May 8, 2014

So I have to ask the user to enter a positive 12 digit number, and it has to be 12 digits exactly. I thought I'd do

Code:

unsigned long long int x;
do{...}
while(!(x>99999999999 && x<1000000000000));

This would obviously be fine on my 64 bit machine, but the code will be ran on a 32 bit one, where unsigned long long is, if I'm not mistaken, 32 bits. Which has a max value of 4 billion and something.

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C++ :: All Possible Combinations For 4 Digits From A 5 Digit Number

Jun 23, 2014

How to get all the possible combinations for 4 digits from a 5 digit number. I need a pair that has both 5 digits and four digits. their sum must be equal to a five digit user input. i.e.

user input : 14690
output:
14690 has pairs 12345 + 2345
2345 came from 12345
lets say that x = 12345 and y =2345
besides y == x%10000

other formula can i have since if i use % and / i will have a lot of declarations....

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C++ :: Three Digit Random Number Generator

Aug 4, 2013

How to produce a code that will satisfy the following constraints. I don't really know C++

- Produces a random three number positive integer between 001 - 504.

- Changes the output number every 24 hours on a website.

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C++ :: Encrypting MAC Address To 4 Digit Number

Apr 4, 2014

I want to encrypt Mac address to 4 digit number which can be decrypted to original MAC address.

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C++ :: How To Restrict User To Enter Four Digit Number Only

Aug 22, 2014

I am trying to write up something to have a user to enter a four digit number. Only four digits, Ex: 0001, 0116, or 9999. There is no getting around the selection 0001 or 0002. I understand if not done correctly, the first three 0's will be ignored.

I've been just playing around with what I have below but I just don't remember how to do it nor can I find a good example online to figure it out. I know it is not correct just typing to try to remember. I am aware that it is gibberish right now, this is just me brainstorming.

int number;
cout<<("Please enter the four digit number(Ex: 0001):
");
cin>> setw(2) >> number;
cout<<)"Please enter four digit date. Two digits for month and two digits for year:
");
cin>> date;
if (number< || number > 30)
cout << "Invalid choice. Try again." << endl;
cin.clear();

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C++ :: Highest Digit In A Number (recursive Function)

Dec 23, 2013

I have this example problem in my school coursebook. How this program works? It determines the highest digit in a number.

#include <iostream>
using namespace std;
int m(int n) {
int a,b;

[Code] ....

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C++ :: Find Sum Of All Digits In Number Until Sum Becomes A Single Digit

Jan 24, 2015

Given an integer, find the sum of all the digits in the number until the sum becomes a single digit. E.g. sum of digits of 9264 = 21. Then sum of 21 = 3.

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C++ :: Customers Plan - Output Name And Two Digit Number Next To It?

Nov 8, 2013

//using bloodshed dev c++ compiler
//How can I output the name and a two digit number next to it
//example would be Indiana Jones 20
#include<iostream>
#include<string>
using namespace std;
class Customer {

[Code] .....

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