Wrong Answer
/in/foo.cc: In function 'void insert(int)':
/in/foo.cc:13:19: warning: operation on 'temp' may be undefined [-Wsequence-point]
trie[temp][ch]=++temp;
^~~~~~
/in/foo.cc: In function 'void insert(int)':
/in/foo.cc:13:19: warning: operation on 'temp' may be undefined [-Wsequence-point]
trie[temp][ch]=++temp;
^~~~~~
