北大poj2277region filling求大神们帮我看看代码哪里错了?

http://poj.org/problem?id=2277![图片说明](https://img-ask.csdn.net/upload/201703/21/1490063965_703307.png)![图片说明](https://img-ask.csdn.net/upload/201703/21/1490063971_246280.png)![图片说明](https://img-ask.csdn.net/upload/201703/21/1490064224_988535.png)![图片说明](https://img-ask.csdn.net/upload/201703/21/1490063983_991165.png)![图片说明](https://img-ask.csdn.net/upload/201703/21/1490063990_182214.png)![图片说明](https://img-ask.csdn.net/upload/201703/21/1490064247_285922.png)

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