View Compilation Error

0_0_36859844_5888.cpp: In function 'void build()':
0_0_36859844_5888.cpp:11:25: error: invalid types 'int[int]' for array subscript
   if(!trie[p][str[i]-'a'])
                         ^
0_0_36859844_5888.cpp:12:22: error: invalid types 'int[int]' for array subscript
    trie[p][str[i]-'a']=p;
                      ^
0_0_36859844_5888.cpp:13:23: error: invalid types 'int[int]' for array subscript
   p=trie[p][str[i]-'a'];
                       ^
0_0_36859844_5888.cpp: In function 'int search()':
0_0_36859844_5888.cpp:22:25: error: invalid types 'int[int]' for array subscript
   if(!trie[p][str[i]-'a'])
                         ^
0_0_36859844_5888.cpp:24:23: error: invalid types 'int[int]' for array subscript
   p=trie[p][str[i]-'a'];
                       ^