View Compilation Error

0_0_33567699_23326.cpp: In function 'int main()':
0_0_33567699_23326.cpp:26:20: error: invalid types 'char[int]' for array subscript
             f1[i][0]=0;
                    ^
0_0_33567699_23326.cpp:28:20: error: invalid types 'char[int]' for array subscript
             f2[0][j]=0;
                    ^