- #include <iostream> 
- #include <stdio.h> 
- using namespace std; 
- void ConvertToBinary(int n); 
- int main() { 
- 	ConvertToBinary(11); 
- 	return 0; 
- } 
- void ConvertToBinary(int n) 
- { 
-     if (n / 2 != 0) { 
-         ConvertToBinary(n / 2); 
-     } 
-     printf("%d", n % 2); 
- } 
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