Compression Code

[silverarrow]

How can you make a program in C that does the following:
input string: My schoool.
compresed: My scho3l.

Program should check input string and display another string without duplicate values, how can you make this program?

[kevinchkin]

If the whole purpose is to have a unique alphabets in the string then may you can use a map. Where storing alphabets as keys and count as values.
Use this code:

#include<iostream>
#include<map>
using namespace std;

int main() {

char arr[100];
cin.getline(arr,100);

 map <char, int> myMap;

for (int i=0;i<strlen(arr);i++) {

     if (myMap.count(arr[i]) == 0) {
         myMap.insert(pair<char, int>(arr[i], 1)) ;
     }
     else {
          if (arr[i] != ' ') {
             myMap[arr[i]]++;
        }
     }

}

char res[100];
map <char, int>::iterator it;

int index = 0;
for (int j=0;j<strlen(arr); j++) {
     if ( j == 0) {
         it = myMap.find(arr[j]);
          res[index] = (*it).first;
          index++;
     }
     else {
           if (arr[j] != arr[j-1]) {
            it = myMap.find(arr[j]);

          if ((*it).second > 1) {
           res[index] = (*it).first;
            index++;
            char ab[1];
            sprintf(ab,"%d",(*it).second);
            res[index] = ab[0];
            index++;
         }
         else {
             res[index] = (*it).first;
             index++;
         }
      }
    }
}

res[index] = NULL;
cout<<"RES:"<<res<<endl;

return 0;

 }

Hope this helps !

[firedraco]

@kevin: Don't give out free code, it's better if you give them hints and tell them where to go...they learn better that way.

[kevinchkin]

Sorry man. I'll remember it from next time.

[seymore15074]

It's their problem, anyway...if they copy someone else's, they are the ones that suffer. (They just don't know it, yet.)

[kevinchkin]

@seymore15074

I couldn't agree with you more. A person who has to learn will learn no matter what and the person who does not have to learn will not learn no matter what.
We can't force anyone.

Peace