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  1. #include <iostream>
  2.  
  3. /*
  4.  * 2 ^ n =
  5.  * Для натуральныч n.
  6.  */
  7. unsigned long pow2(int exp)
  8. {
  9.     return 1 << exp;
  10. }
  11.  
  12. int main()
  13. {
  14.     for (int i = 0; i < 10; ++i)
  15.         std::cout << "2 ^ " << i << " = " << pow2(i) << std::endl;
  16. }
Success #stdin #stdout 0s 2884KB
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stdout
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2 ^ 0 = 1
2 ^ 1 = 2
2 ^ 2 = 4
2 ^ 3 = 8
2 ^ 4 = 16
2 ^ 5 = 32
2 ^ 6 = 64
2 ^ 7 = 128
2 ^ 8 = 256
2 ^ 9 = 512
https://ideone.com/32vkSf
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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