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  1. #include <iostream>
  2. #include <string>
  3.  
  4. int main()
  5. {
  6.       char input[]="10010";//Die Dual-Zahl 18(2)
  7.       unsigned long long a=0;
  8.  
  9.       for(char* ch=&input[0];*ch!='\0';++ch)
  10.             a = 2*a + (*ch-'0');
  11.  
  12.       std::cout << a << '\n';
  13. }
  14.  
Success #stdin #stdout 0.02s 2724KB
comments (?)
stdin 
Standard input is empty
stdout 
18
https://ideone.com/LR1ZZ
language:
C++ (gcc 8.3)
created:
14 years ago
visibility:
public

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