我在 LeetCode 上练习 Word Pattern（题目连接点这里），写的程序放在本地VS2008上跑如下实例：

pattern = "abba", str = "dog cat cat fish" should return false.

没有问题，返回的是false，但是放在LeetCode 上提交，提示错误，错误如下：

代码如下：

class Solution { public: bool wordPattern(string pattern, string str) { const int len = pattern.length(); char * c = new char[len+1]; strcpy(c, pattern.c_str() ); char * arr[1024]; int num = 0; char * pch; pch = strtok(c, " "); while (pch != NULL) { arr[num++] = pch; pch = strtok(NULL, " "); } vector vecStr; vector vecPattern; for (int i = 0; i < num; ++i) { for (int j = 0; j < vecStr.size(); ++j) { if (vecStr[j] == str[i] && *(vecPattern[j]) != *(arr[i]) ) { return false; } } for (int j = 0; j < vecPattern.size(); ++j) { if (*(vecPattern[j]) == *(arr[i]) && vecStr[j] != str[i]) { return false; } } vecStr.push_back(str[i]); vecPattern.push_back(arr[i]); } return true; } };

求指教。