View Compilation Error

0_0_14031457_25998.cpp: In function 'int main()':
0_0_14031457_25998.cpp:16:21: error: invalid types 'int[int]' for array subscript
             cnt[C[i]]+=W[i];
                     ^
0_0_14031457_25998.cpp:34:29: error: invalid types 'int[int]' for array subscript
                 sum+=cnt[tmp];
                             ^
0_0_14031457_25998.cpp:37:37: error: invalid types 'int[int]' for array subscript
             ans=max(ans,sum+cnt[C[i]]);
                                     ^
0_0_14031457_25998.cpp:42:21: error: invalid types 'int[int]' for array subscript
             cnt[C[i]]-=W[i];
                     ^