View Compilation Error

0_0_27080276_6126.cpp: In function 'void builda(int, int, int)':
0_0_27080276_6126.cpp:45:21: error: invalid initialization of reference of type 'int&' from expression of type 'll {aka long long int}'
         scan_d(trb[i]);
                     ^
0_0_27080276_6126.cpp:8:13: note: in passing argument 1 of 'bool scan_d(int&)'
 inline bool scan_d(int &num)
             ^