View Compilation Error

0_0_19909711_11421.cpp: In function 'int main()':
0_0_19909711_11421.cpp:19:7: error: invalid types 'int[int]' for array subscript
    a[i]=i;
       ^
0_0_19909711_11421.cpp:28:8: error: invalid types 'int[int]' for array subscript
     a[a]=b;
        ^
0_0_19909711_11421.cpp:33:10: error: invalid types 'int[int]' for array subscript
    if(a[i]==i){
          ^