C/C++ :: How To Pad Characters In RSA Cryptography Technique

Oct 7, 2014

How to pad characters in rsa algortihm.eg 'H' becomes 45 so how to do it so that i can use that in my equation.

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Visual C++ :: Put A Message String Through Algorithm / Cryptography?

May 31, 2013

I'm looking for a resource (possibly CPP) for which I could do the following on a windows and linux machine:

1) type a string message into a GUI control (or some other input that can be accessed by the resource).

2) run a resource script that puts the message through a hash function (or a custom hash function) and outputs the hash string.

3) have a reverse function available in order to decrypt the message in an input fashion just like step #1.

what open-source resource might be the best for this? Right now I am imagining typing a message into a text file, saving the file to a hard drive location, running a script on it replacing the old file with a new file that just has a hash string in it, then using that hash string for the encoded message.

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Visual C++ :: Search Technique On DNA Sequence

May 10, 2013

Given a set of DNA string. Find minimum length string S so that, given DNA strings are subsequence of S.

For example, if given set of string is: {CAGT, ATGC, CGTT, ACGT, AATT} then answer is: 8. Because, ACAGTGCT contains all given DNA as subsequence.

Given n such DNA string (n <= 8), each of length atmost 5. Find out the least length.

Sample:
5
AATT
CGTT
CAGT
ACGT
ATGC

Output:
8

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C :: Bitfield Array - Using Standard Technique Of Creating A Structure Within Union

Mar 27, 2013

Any way that one could create a bitfield using the standard technique of creating a structure within a union, as follows:

Code:
typedef union {
struct {
unsigned b0 : 1;
unsigned b1 : 1;
:
:
unsigned b(n-1) : 1;
} bits;
unsigned int value;
}

BIT_FIELD_TYPE; Except, what I'd like to do is to replace all the single-bit elements in the bits structure with a single statement that creates an array of, say, 32 values. The clear advantage of this is that it could be traversed using an iterator, ...

Code:
main() {
BIT_FIELD_TYPE foo;
unsigned int i;
...
for (i = 0; i < n; i++) {
... (print out foo.bits.b[i]) ...
}

So far, I've not figured out a way to do it, either as an array, or using a pointer to iterate through the individual bits.

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C :: Make A Hash Table Array Of Linked Lists / Separate Chaining Technique

Jul 5, 2013

how to create a hash table array and use linked lists inside the elements.

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C :: How To Print Characters But No String Just Array Of Characters

Mar 20, 2014

so my question is i want to print characters,no string just an array of characters,i do this but it s not working,maybe i have to put the '' at the end?

Code:

int main() {
int i;
char ch[5];
for(i = 0; i < 5; i++) {
scanf("%c",&ch[i]);

[Code]...

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C/C++ :: Find The Common Characters Between Two String Characters

Jul 6, 2014

Im supposed to find the common characters between two string characters, assuming that the user wont input duplicate letters like ddog. When I run my code I get an output of a question mark upside down. Here is my code with comments on what each part is supposed to do

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main(){
char str1[20], str2[20],remp = '';
int size1,i,j,temp;
printf ("Input the first string");

[Code]...

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C/C++ :: Check For Set Of Characters In Array Of Characters?

Mar 26, 2014

I have an array of characters. I am trying to find "houston". The only way I can think of to do this is to use a for loop and check each individual character. Is there an easier way to do this?

char string[] = "Fishing tourism miami atlanta dallas houston";

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C :: Cannot Print Characters In The End

Feb 7, 2014

I cant print the characters in the end.

Code:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main()
{
FILE *arquivo1,*arquivo2,*arquivo3;//files i will open//
char texto;//texto= character i will read.

[Code]...

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C++ :: How To Use Unicode Characters

Jan 25, 2015

I'm trying to have a button marked by the sqrt sign, '√'.

I wrote below code and typed that sign by holding down "alt" and typing 251 using numpad. But result is the question mark instead of sqrt mark!

My machine is Windows 7 x86 and IDE is visual studio 2012.

#include <GUI.h>
using namespace Graph_lib;
//---------------------------------
class Test : public Window {
public:
Test(Point, int, int, const string&);

[Code] .....

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C++ :: How To Do Substring To Get Last 4 Characters

May 8, 2013

let says i have char *yytext = "p103_stb" 0r "p0_stb" or "p100_stb"

How to do substr to get the "_stb" in C?

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C/C++ :: Use Characters In If Statement?

Oct 15, 2014

#include <stdio.h>
#include <math.h>
int main(void)
{

[Code]....

That's my code above and I'm getting an error saying that I'm "implicitly declaring library function 'strcmp' with type 'int(const char*, const chat*)". When i run this program and enter in Black for the first prompt, the program stops. I'm trying to make this program so that when I enter Black as the answer for the first prompt, the program will display the value 10.

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C :: Dynamic List Of Characters

Oct 17, 2014

i just need clarification on if this is what is considered a dynamic list of characters, i don't want a linked list.

Code:

struct dlist {
int size;
int maxsize;
char *datafield;
};

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C :: Compress Array Of Characters

Mar 15, 2014

I am trying to write a function compress() that takes in an input of a 2-dimensional array (5x10) of character data, compresses each row of the array by replacing each run of character with a single character and the number of times it occurs, and prints on each line the result of compression in the function. For example, the row with data aabbcdddee may be compressed into a2b2c1d3e2.

Input (5x10 of characters):
aaacccdeee
sssseeeedd
aaaaaaaccc
eeedddasee
ddeeeeeggg

Output:
a3c3d1e3
s4e4d2
a7c3
e3d3a1s1e2
d2e5g3

I could achieve the compression part, but behind the compressed array, it printed out 5 extra lines of alien ASCI code, followed by printing out 5 times of everything .

Code:

void compress(char data[SIZE1][SIZE2])
{
int i,j, k,l ,count;
char data123;
printf("Enter your data (5x10 of characters): ");
for (i=0; i < SIZE1; i++) {
for (j=0; j < SIZE2; j++)
data[i][j] = getchar();
fflush(stdin);
}

[code]....

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C :: Isolate Characters Between The Brackets

Sep 3, 2013

I have a character array that will have a prefix and then a filename that will be between two square brackets. Something like this;

get[filename]

I need to isolate the characters between the brackets. Here is my attempt:

Code:
char* get_filename(char selection[]) {
char* ptr;
char* rv;
char* temp;
ptr = strtok(selection, "[");
ptr = strtok(NULL, "[");

[Code] ....

But of course, this isn't working.

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C :: Draw A Grid Using The Characters?

Aug 20, 2013

I'm trying to create a grid using the following characters: !, @, #, $, &.

It's an 8 x 8 grid, and should contain the characters in no particular order (trying to create a Bejeweled-like game).

I already defined the width and length to be 8, so:

#define WIDTH 8
#define LENGTH 8

Code:

void makegrid(char grid[])
{
int j;
int k;
for ( j = -1; j < LENGTH; j++ )
{
for ( k = -1; k < WIDTH; k++ )
{
/* I don't know what to type here anymore :( */
}
} }

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C :: Reading Characters From A File

Mar 19, 2013

if i start reading individual characters from a text file having the following content: "music, Indian classical dance, and other aspects of Indian culture.It is also a movement with chapters in over 200 towns and" what are the characters that will be read after the word 'culture.' ?

will it be '
' , '
' , 'I' and so on

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C :: How To Read The Characters Into Array

Jan 27, 2014

I have written this program to copy all the characters input from the keyboard into the array till a "?" mark is entered. what is the error i am doing. I am getting a run time error in this case.

Code:

void word_reversal(void) {
char array[100];
int index=0;
printf("Enter the number of characters less than 100
");
do {
scanf("%c",&array[index++]);
}while(array[index] != '?');
}

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C :: How To Read Characters From File

Dec 29, 2014

I'm new with C language. I got task to do . Actually there are 2 points. Both should be done with reading text from file. write down all letters from text in reverse alphabetic order (each letter 1 time).write down all words in random order.

I'm stuck with first point. Below code gives me entire text, but i need unique characters only. Text file contains few sentences.

Code:
#include<stdio.h>
void main( ) {
FILE *in;
int ch;
if ( (in = fopen("test.txt", "r") ) != NULL ) {

[Code] ....

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C :: How To Display Characters In Binary

Feb 5, 2015

I know how loops work. I know about bitmasks and how to display characters in binary. How should i proceed now in order to make an app that consists of online booking or knowing someones location.

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C++ ::  Validating Characters In A Stack

Oct 7, 2014

Validation opening/closing brackets.

I had the entire validation working until my professor said that my Pop function had to be a "void" not a "Char". Which destroyed my previous validation and now how to validate this.

I will only be posting the validating function.

All the characters are being thrown in a Stack. So I am using Pop/Top/Push/isEmpty/isFull. That will be shown in my validating code.

Correct Validations:
1. {}()[]
2. [()]
3. {([])}

Incorrect Validations:
1.[)
2.[(]]
3.{])

My main issue is that it validates "[)" correct.

I am pretty positive I must have over complicated my validation.

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C++ :: Printing Unicode Characters With Key IDs

Feb 5, 2013

I want to print out unicode characters. But I want to do this using the key ids. Example:

int main()
{
std::cout << ('124'); //I would like this to output '|'
}

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C++ :: How To Stop Input After Certain Characters

Oct 23, 2013

I'm trying to get the user to input their 5 digit zip code but my problem is how can I stop the program after the five characters have been inputted. Also how can I only get numbers to be inputted cause so far letters can be inputted as well.

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C++ :: Characters With Integers Tabbed To Right?

Oct 2, 2014

I took a month's break from programming, and got rusty. Here's the problem:

The character 'b' is char('a'+1), 'c' is char('a'+2), etc. Use a loop to write out a table of characters with their corresponding integer values:

a (tab) 97
b (tab) 98
...
z (tab) 122

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C++ :: Passwords Must Be At Least 7 Characters Long

Dec 4, 2013

I've written a code that request for a password and its suppose to look like this.

Sample Output (inputs in bold)
Please enter a password: pass6
Passwords must be at least 7 characters long
Please enter a password: TarrantNW
Passwords must include a digit or dollar sign (0-9, $)
Please enter a password: Tccd-03

But when I run the program it stops at "Passwords must be at least 7 characters long" and the box closes and where I should put the loop=

#include <iostream>
#include <cstring>
#include <cctype>
using namespace std;
const int SIZE = 7;
char password[SIZE + 1];

[code]....

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C++ :: Reading Odd Characters From A File

May 20, 2014

I have some files for input that look like this:

Carlitos, Gauleses , Terra das Vagabundas, SN., 350, 12, 5.83
EMPIRE STATE, Gauleses , EMPIRE STATE, FÊNIX™, 298, 12, 7.00
bigorna, Gauleses , Aldeia d bigorna, DDT@D, 318, 12, 10.44
akemif, Romanos , Aldeia Akemif, DDT@D, 19, 12, 13.04
Black Mason, Gauleses , Kindorim, DDT@D, 424, 12, 15.03

[Code] ....

I get this data from a site and I copy paste them to create a .txt file for input (I do this my self, no program involved).
When the program runs it ends up like this on netbeans:

0 [main] program 2336 open_stackdumpfile: Dumping stack trace to program.exe.stackdump

When I type the input file my self it works fine. When I copy the data from the site that the problem occurs, it looks like those strange characters are causing the problem (notice the ????? are some drawings on text).

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