Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:14:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(unsigned int i=1;i<=t;i++) ^ user.cpp:19:79: error: invalid operands of types ‘int’ and ‘__gnu_cxx::__enable_if<true, double>::__type {aka double}’ to binary ‘operator<<’ for(unsigned int j=0;j<len;j++)if(temp[j]=='1')sol=sol+(1<<abs(j-len+1)); ^ user.cpp:9:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("kbiti.in","r",stdin); ^ user.cpp:10:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("kbiti.out","w",stdout); ^