Question

Flatten Text: Write a function to implement simple string flatten operation with the help of number of occurrence of characters. For example, the string xxyzzzzzxxx results in x2ylz5x3. In case the "flattened" string doesn’t result in becoming shorter than what we started with, then the function simply returns the starting string. The string should use only uppercase and lowercase letters (a through z).

#include <iostream>
using namespace std;

string flattenText(string str)
{
   string flattenedText = "";
   return flattenedText;
}

int main()
{
string userString;
cout<<"Enter a string to flatten: "<<endl;
getline(cin, userString);
cout<<"You entered string: "<<userString<<endl;
cout<<"Flattened string is: "<<flattenText(userString)<<endl;
return 0;  
}

Answer 1

Here is code:

#include <iostream>

#include <string>

using namespace std;

string flattenText(string str)

{

string flattenedText = "";

int counter = 1, i;

for (i = 1; i < str.size(); ++i)

{

if (str[i] == str[i - 1])

{

counter++;

}

else

{

flattenedText += str[i - 1];

if (counter > 1)

flattenedText += to_string(counter);

counter = 1;

}

}

flattenedText += str[i - 1];

if (counter > 1)

flattenedText += to_string(counter);

return flattenedText;

}

int main()

{

string userString;

cout << "Enter a string to flatten: " << endl;

getline(cin, userString);

cout << "You entered string: " << userString << endl;

cout << "Flattened string is: " << flattenText(userString) << endl;

return 0;

}

Output: