I have a simple decryption program but I cant get it to encrypt/decrypt text read from the keyboard using getline (), did i declare wrong?
#include <iostream>
#include <string>
using namespace std;
char text[ ]
(here I have my void decrypt/encrypt functions)
int main () {
cout <<''Enter text to encrypt''<<endl;
getline(cin,text);
I have a certain method of encrypting text. You get the first character of the word. For example in the word "hacker", you get 'h', and then you get the last character 'r'. The encrypted word until now is "hr". Then we get the same word with the 'h' and 'r' removed, now it's "acke". I do the same thing and get the first character 'a' and the last one 'e' and them to the encrypted word: it is now "hrae".
The left letters of the word are "ck", again we do the same thing and take the first character 'c' and the last character 'k' and and add them to the new encrypted word so it is "hraeck". The above word has an even number of characters and at the end had 2 characters left 'c' and 'k',first and last, in some cases of words with an odd number of characters, only one character is left! I'm completely lost on how to encrypt and decrypt this.
I'm very new to c and c++ and am currently working on a Caesar cipher that grabs encrypted text from a txt file and decrypts it onto a new txt file. My code builds fine in CodeBlocks and when I run it, there is a new txt file created but it stays blank.
#include <iostream>
#include <fstream>
#include <string>
#include <stdlib.h>
#include <cstdlib>
using namespace std ;
int main(int argc, char *argv[]){
[Code] ....
I have managed to print out the encrypted text from the console, however it doesnt decrypt correctly and isn't returning the correct key. I can't seem to find the error that is causing the decrypted text from printing correctly. When I try to decrypt the text it changes it completely as well.
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include "rotUtils.h"
bool solved( char decodearr[], char dictarr[][30], int size1, int size2){
char* compared;
bool result = false;
for(int j = 0; j < size2; j++){
[code]....
I am working on a program where a user first enters a key of 26 characters, they then choose the number of lines they'd like to use with a max length of 40. Once they have entered the key and chosen the number of lines, they then enter text into the chosen number of lines, before that text is ultimately encrypted. I have it working as far as accepting the user's 26-character key, accepting their choice for number of lines, but when the user is typing in their lines of text, it only allows 6 lines before it moves to where the text would be encrypted.
View 3 Replies View RelatedSo this may be against the rules, not sure, grey area probably? However I just bought the PC game Oil Rush, and was having a look at how the assets are packed. As with most games the textures, scripts, sounds and audio are all free to access.
However the game data such as maps, models and other, are packed into UNG files, i.e a custom encrypted file format, which probably is also compressed. So I googled for an unpacker/extracter and found one which also comes with the C source. You can download here. [URL] ....
So I am trying to figure out how these authors work out this file format, from the source we have,
Code:
static const u8 unigine_mask[] = "xffx7fx3fx1fx0fx07x03x01";
u32 unigine_key = 0xa13cdbde;
Looks like a password of sorts. You then have to work out the complete understanding of the file formats, headers, blocks etc.. How is this done...
I want to encrypt Mac address to 4 digit number which can be decrypted to original MAC address.
View 9 Replies View Related#include<stdio.h>
#include<conio.h>
#include<string.h>
char str1[20], str2[20]="kent";
main() {
printf("Enter your Username: ");
scanf("%s",str1);
[Code] ...
Right now I'm working on an assignment where I need to take the data from on file encrypt it by adding 5 to each byte and then save it to a user specified location. I think I'm close to having it done but I've run into a hick up. After I get the user input for where the encrypted data should be saved the program seems to never end. This is the code I have so far
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
int main()
{
ifstream input;
ofstream output;
[Code]...
I am programming a translator, and I have it so that it detects words with spaces both in front of and behind them, so I did "string.append(space);" where space equals " ". That added a space to the end, but I still need a space added to the front.
View 1 Replies View RelatedI have a problem who must print the sentences who have lenght more than 20 characters. I dont know why, but it prints just the first words. Look what i made.
#include<stdio.h>
#include<conio.h>
int main()
[Code]....
For instance :
Give the number of sentences : 3
First sentence : I like the website bytes.com
Second sentence : I like more the website bytes.com
Third sentence : bytes.com
After I compile the program it should print the first two sentences.
I tried to add 2 or more strings together but failed.
eg I would like to add "KK" & "LL" together by adding but it couldn't work.
string string_B = "KK";
string string_C = "LL";
string_A = string_B + string_C;
1. I finished reading a beginning C book, and in the section about arrays, it says that one string can fit in a character array (char arrayname[]) but there cannot be a string array (string arrayname[]) that have multiple strings. Is
Code: string arrayname[4] = {"one", "two", "three"}; not valid?
My compiler lets me run it and it works, but why is the book saying it's wrong?
2. I know you can represent multiple strings in a character array by:
Code: char newarray[10][4] = ("one", "two", "three");
because [10][4] indicates that there should be four newarrays created with a max of 10 characters each, but is
Code: string multiplestrings[10][4] = ("i love you", "hello come to me", "i don't get C"; "hello world", "what are arrays"; "i am happy", "I am learning how to code"); valid?
Does multiplestrings[10][4] basically create 4 string arrays that have a maximum of 10 different strings within each string array?
How join two strings? basic reason is add given filename little text to end. I try do by hobby not school project program which converts files format x to format y.i dont say which formats becouse reading and writing is almost done. (only little amount code is needed).'
View 2 Replies View Relatedjavascript:tx('quote')
void family () {
string father;
string mother;
string kids;
int x;
int y=0;
[Code] .....
How am I allowed to but the 3 strings father, mother and kids in a array?
None of my string is coming out onto my output file..
void OutputHeading (ofstream& fout, string CLASS_EXERCISE,
string PROGRAMMERS_NAME);
void OutputDivider (ofstream& fout, int WIDTH,
char symbol);
void OpenFiles (ofstream& fout, ifstream& fin);
[Code] .....
I've got a very simple but annoying problem.
if (letter3=="
"){
letter3==letter;
PrintCharacterLineEnd();
This is a code. the string "letter3" contains the string "
". What I want to happen is when, letter3 contains the text "
" I want to go to the function PrintCharacterLineEnd.
However, as of right now it's not working.
I need to make a small program with a function with this prototype: void f(char *a,char *b) that adds two numbers represented as strings without using conversion operators or other tricks.
View 17 Replies View Relatedwhy all strings are always constant?
View 2 Replies View RelatedI have a vector I want to add book titles to, then i want to print my updated vector. This is best I have come up with but the program fails at the getline line. why?
string book;
cout << "Enter book to add: "<< endl;
getline(cin, book);
books.push_back(book);
for(int i = 0; i < books.size(); ++i) {
cout << i+1 << ". " << books[i] << endl;
}
The problem with this code is that there are no errors showing, but when i compile the program, the if else statements do not carry out as they should do. Both if statements show the same answer, for example the second if statement. If I type Y or N then I get the same thing, 'You will now choose an event'. How do i get rid of this problem? Is char supposed to be used or string?
#include <iostream>
#include <iomanip>
#include<stdlib.h>
[Code].....
How would I alphabetize this with the different strings? Would I just need to use a bubble sort?
Code:
#include <iostream>
#include <string>
#include <fstream>
[Code]....
Code:
#include <iostream>
#include <string>
using namespace std;
int main()
[Code] ......
How do I link the strings to the integers?
I am trying to figure out how to go about comparing two strings of numbers. I have two files that both contain numbers 1-50, one file has multiple repeating numbers while the other one just has 1-50.
I want to compare the files and count how many of each number a occurred and make a chart with * next to the number. First I figured I would use the strings like an array and compare them using nested loops. Then I noticed I have single and double digit numbers. The numbers in the files are printed as:
1 44 5 34 4
2 22 7 55 4
...... etc
Compared too:
1
2
3
4
5
......
50
I thought about using string stream and converting the string to int but wouldn't it just be a huge number when set to the int variable? Then I thought about a array initialized with 1-50 and compared to the file but I still have the issue with single and double digit numbers.
My question is how can I just read one number at a time, either double or single digit?
I am having trouble converting strings in my application.
This is the code that is eventually getting called, the first parameter takes a LPCWSTR
Code:
hr = m_pGraph->RenderFile(m_filePath, NULL); // takes LPCWSTR This is where the trouble begins.
The compiler shows that sResult is proper but after I try to convert a std::string to a wchar it prints garbage
Code: const wchar_t* m_filePath = (wchar_t *) oDb->GetNext().c_str();
Code:
std::string CSqlLiteDatabase::GetNext() {
sqlite3_stmt *oStmt = nullptr;
std::string sql = "SELECT path || filename FROM table WHERE id = 1";
char message[255];
[Code] ....
I have to read data from a text file, load it into an array and then bubble sort it! Here is my code:
Code:
#include <iostream>
#include <string>
#include <fstream>
[Code]....
Basically what i am trying to do is that sort the names of 10,000 movies and then write those names to a text file. It gives an error in the nested loop by underlining arr and tells that no suitable conversion function from std::string to const char* exists.