some_sh..

#include <iostream>
#include <cstring>

using namespace std;

int main() {

  const int arr_size = 100;
  char arr1 [] = "blabla lalala        ololo    dsdsds";
  char arr2 [arr_size] = {0};
  int i = 0;
  int j = 0;
  int len = strlen (arr1);

/*  for (i = 0; i < len; i++) {
      arr2 [i] = arr1 [i];

  } */

        for (i = 0; i < len; i++) {
            if (arr1 [i] != ' ', arr1 [i+1] != ' ') {
              arr2 [j++] = arr1 [i];
        }
    }

      cout << arr2 << endl;

  return 0;

}