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Problem3646--【Div4】字符串练习-abc468b-Corridor Watch

3646: 【Div4】字符串练习-abc468b-Corridor Watch

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Time Limit : 1.000 sec Memory Limit : 128 MB

Submit Solved: 0 Submit Num: 0 Statistics

Description

Sample Input Copy

7 1
.G...GG

Sample Output Copy

Source/Category

atcoder 字符串

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