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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5.  
  6. 	int tab[1000];
  7. 	int i = 0;
  8. 	do {
  9. 		cin >> tab[i];
  10. 		i++;
  11. 	} while(tab[i-1]!=-1);
  12. 	cout << (tab[1]+tab[i-3]/2.0);
  13.  
  14. 	return 0;
  15. }
Success #stdin #stdout 0.01s 5268KB
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stdin
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1 2 3 4 10 -1
stdout
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4
https://ideone.com/KxNXTT
language:
C++ (gcc 8.3)
created:
3 days ago
visibility:
public

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