View Compilation Error

0_0_29130747_3300.cpp: In function 'int main()':
0_0_29130747_3300.cpp:108:47: error: invalid initialization of non-const reference of type 'int&' from an rvalue of type 'int'
             update(1,1,n,a[i-1],a[i-1],pe[i+1]+1);
                                               ^
0_0_29130747_3300.cpp:28:6: note: in passing argument 6 of 'void update(int, int, int, int&, int&, int&)'
 void update(int k,int l,int r,int &x,int &y,int &a)
      ^
0_0_29130747_3300.cpp:109:47: error: invalid initialization of non-const reference of type 'int&' from an rvalue of type 'int'
             update(1,1,n,a[i+1],a[i+1],pr[i-1]+1);
                                               ^
0_0_29130747_3300.cpp:28:6: note: in passing argument 6 of 'void update(int, int, int, int&, int&, int&)'
 void update(int k,int l,int r,int &x,int &y,int &a)
      ^