View Compilation Error

0_0_39319574_516.cpp: In function 'int main()':
0_0_39319574_516.cpp:67:39: error: invalid types 'int[int]' for array subscript
   67 |                 for(int i=1;i<=n;++i)a[i]=read();
      |                                       ^
0_0_39319574_516.cpp:69:34: error: invalid types 'int[int]' for array subscript
   69 |                         if(!pos[a[i]])Modify(rt[i],rt[i+1],1,n,i,1),pos[a[i]]=i;
      |                                  ^
0_0_39319574_516.cpp:69:74: error: invalid types 'int[int]' for array subscript
   69 |                         if(!pos[a[i]])Modify(rt[i],rt[i+1],1,n,i,1),pos[a[i]]=i;
      |                                                                          ^
0_0_39319574_516.cpp:73:61: error: invalid types 'int[int]' for array subscript
   73 |                                 Modify(rt[i],rt[i],1,n,pos[a[i]],-1);
      |                                                             ^
0_0_39319574_516.cpp:74:38: error: invalid types 'int[int]' for array subscript
   74 |                                 pos[a[i]]=i;
      |                                      ^