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  1. #include <cstring>
  2. #include <iostream>
  3. using namespace std;
  4.  
  5. int U1ToInt(const char *U1)
  6.   {
  7.    int ret=0,inv=(*U1=='1');
  8.    while(*(++U1)) ret=(ret<<1)+((*U1-'0')^inv);
  9.    return inv?-ret:ret;
  10.   }
  11.  
  12. int main()
  13.   {
  14.    cout<<U1ToInt("0111")<<endl;
  15.    cout<<U1ToInt("1111")<<endl;
  16.    cout<<U1ToInt("010")<<endl;
  17.    cout<<U1ToInt("110")<<endl;
  18.    cout<<U1ToInt("01")<<endl;
  19.    cout<<U1ToInt("11")<<endl;
  20.    return 0;
  21.   }
Success #stdin #stdout 0s 3296KB
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https://ideone.com/tvPriz
language:
C++ (gcc 8.3)
created:
9 years ago
visibility:
public

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