View Compilation Error

0_0_35916801_14614.cpp: In function 'int main()':
0_0_35916801_14614.cpp:14:9: error: invalid types 'std::map<int, int>::mapped_type {aka int}[int]' for array subscript
   m[1][1]=1;
         ^
0_0_35916801_14614.cpp:17:22: error: invalid types 'std::map<int, int>::mapped_type {aka int}[int]' for array subscript
    if(!m[A[i]][A[i-1]])
                      ^
0_0_35916801_14614.cpp:18:19: error: invalid types 'std::map<int, int>::mapped_type {aka int}[int]' for array subscript
     m[A[i]][A[i-1]]=i-1;
                   ^
0_0_35916801_14614.cpp:20:21: error: invalid types 'std::map<int, int>::mapped_type {aka int}[int]' for array subscript
     x=m[A[i]][A[i-1]];
                     ^