RLE Encoding/Compression c++
#include <iostream>
#include <string>
using namespace std;
// Perform Run Length Encoding (RLE) data compression algorithm
// on string str
string encode(string str)
{
// stores output string
string encoding = "";
int count;
for (int i = 0; str[i]; i++)
{
// count occurrences of character at index i
count = 1;
while (str[i] == str[i + 1])
count++, i++;
// append current character and its count to the result
encoding += to_string(count) + str[i];
}
return encoding;
}
int main()
{
string str = "ABBCCCD";
cout << encode(str);
return 0;
}