- #include <iostream> 
- #include <vector> 
- #include <algorithm> 
- using namespace std; 
-   
- int main() { 
- 	vector<int> v; 
- 	v.push_back(1); 
- 	v.push_back(2); 
- 	v.push_back(3); 
- 	reverse(v.begin(),v.end()); 
- 	for(auto& e : v) 
- 	  cout << e << " "; 
- 	return 0; 
- } 
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