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c++ 使用map 并且WA的 进来看看，终于知道问题在哪了

Posted by Monsters at 2016-08-25 10:44:52 on Problem 1007 
先测试一下数据
4 6                                                                                              
dcba                                                                                             
cbad                                                                                             
bacd                                                                                             
abcd                                                                                             
abbc                                                                                             
abcc 
看看你输出的是不是6个答案！！！
因为map的key是不能重复的，所以要用multimap！！！！
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