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  1. #include <iostream>
  2. #include <algorithm>
  3. #include <string>
  4. using namespace std;
  5.  
  6. int main() {
  7. 	string n,res;
  8. 	string::iterator p;
  9. 	int d,i,lim,iter;
  10.  
  11. 	while(cin >> lim >> d && (lim || d)){
  12.  
  13. 		cin >> n;
  14.  
  15. 		p = max_element(n.begin(),n.end());
  16.  
  17. 		lim = n.size()-d-1;
  18. 		iter = lim+1;
  19.  
  20. 		for(p=n.begin(),i=0;i<iter;i++){
  21. 			res.push_back(*max_element(p,n.end()-lim));
  22. 			p = max_element(p,n.end()-lim);
  23.  
  24. 			lim--;
  25.  
  26. 			//cout << n << endl;
  27.  
  28. 			//n.erase(n.begin(),p+1);
  29. 			p = n.begin();
  30.  
  31. 			//cout << n << endl;
  32. 		}
  33.  
  34. 		cout << res << endl;
  35.  
  36. 		fill(res.begin(),res.end(),0);
  37. 		fill(n.begin(),n.end(),0);
  38. 	}
  39. 	return 0;
  40. }
Success #stdin #stdout 0.08s 3280KB
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https://ideone.com/hUYAbc
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

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