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本题是不是标程有问题，一个AC代码输出是NO，但是准确的输出不应该是YES吗

Posted by swordmanMix at 2023-09-10 15:27:24 on Problem 2157 and last updated at 2023-09-10 15:44:10

13 13
S............
aAAAAAAAAAAA.
bABBBBBBBBBA.
cABCCCCCCCBA.
dABCDDDDDCBA.
eABCDEEEDCBA.
.ABCDEGEDCBA.
.ABCDEEEDCBA.
.ABCDDDDDCBA.
.ABCCCCCCCBA.
.ABBBBBBBBBA.
.AAAAAAAAAAA.
.............
0 0

输出YES，反倒得到WA。

得到所有的abcde，不就可以打开所有的门，进而到达G吗？ 求大佬指教，怎么回事

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