View Compilation Error

0_0_25746727_20420.cpp: In function 'int main()':
0_0_25746727_20420.cpp:20:37: error: invalid types 'int [100][double]' for array subscript
                if (abs(a[i])<abs(a[j]))
                                     ^
0_0_25746727_20420.cpp:23:30: error: invalid types 'int [100][double]' for array subscript
                    a[i] = a[j];
                              ^
0_0_25746727_20420.cpp:24:23: error: invalid types 'int [100][double]' for array subscript
                    a[j] = flag;
                       ^