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  1. #include <iostream>
  2. #include <vector>
  3.  
  4. using namespace std;
  5.  
  6. int main() {
  7. 	vector<char>v;
  8. 	char ch;
  9. 	int l, r;
  10. 	cin >> l >> r;
  11. 	while(cin >> ch){
  12. 		v.push_back(ch);
  13. 	}
  14. 	int mid = (l+r) / 2;
  15. 	for (int i=0; i<=mid; i++){
  16. 		char temp;
  17. 		temp = v[l-1+i];
  18. 		v[l-1+i] = v[r-1-i];
  19. 		v[r-1-i] = temp;
  20. 	}
  21. 	for (char u:v)
  22. 		cout << u << endl;
  23.  
  24. 	return 0;
  25. }
Success #stdin #stdout 0.01s 5288KB
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stdin
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3 7
abcdefgh
stdout
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a
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https://ideone.com/vEEDmD
language:
C++ (gcc 8.3)
created:
5 days ago
visibility:
public

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