View Compilation Error

0_0_32743988_27133.cpp: In function 'int main()':
0_0_32743988_27133.cpp:114:16: error: invalid initialization of reference of type 'int&' from expression of type 'long long int'
    if(c==1)fr(x),change(1,1,n);;
                ^
0_0_32743988_27133.cpp:16:13: note: in passing argument 1 of 'void fr(int&)'
 inline void fr(int & o){
             ^