View Compilation Error

0_0_37793671_8886.cpp: In function 'int main()':
0_0_37793671_8886.cpp:348:49: error: no matching function for call to 'read()'
         for(int i = 1; i <= n; i ++)a[i] = read();
                                                 ^
0_0_37793671_8886.cpp:348:49: note: candidates are:
0_0_37793671_8886.cpp:11:27: note: template<class T> void read(T&)
 template <typename T>void read(T& x){
                           ^
0_0_37793671_8886.cpp:11:27: note:   template argument deduction/substitution failed:
0_0_37793671_8886.cpp:348:49: note:   candidate expects 1 argument, 0 provided
         for(int i = 1; i <= n; i ++)a[i] = read();
                                                 ^
0_0_37793671_8886.cpp:333:6: note: void read(int&)
 void read(int &x){
      ^
0_0_37793671_8886.cpp:333:6: note:   candidate expects 1 argument, 0 provided