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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. int main()
  6. {
  7.     std::cout<<"Input number"<<std::endl;
  8.     int Lim;
  9.     std::cin>>Lim;
  10.     auto f = [](auto&& self, int N, int X, int Lim) -> int
  11.     {
  12.         return N > Lim ? N : self(self, N + X, N, Lim);
  13.     };
  14.     std::cout << f(f, 1, 1, Lim) << std::endl;
  15.     return 0;
  16. }
  17.  
Success #stdin #stdout 0s 3144KB
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stdin
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5
stdout
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Input number
8
https://ideone.com/TASTir
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
secret

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