View Compilation Error

0_0_28098942_9195.cpp: In function 'void doit()':
0_0_28098942_9195.cpp:30:13: error: invalid initialization of reference of type 'int&' from expression of type 'long long int'
     read(a[i]);
             ^
0_0_28098942_9195.cpp:4:13: note: in passing argument 1 of 'void read(int&)'
 inline void read(int &x){
             ^