Rotate String
看一个字符串B不是左旋后的A. 只需要把A复制一下, 然后看其中有没有B即可.
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class Solution { public boolean rotateString(String A, String B) { if(A.length() != B.length()) // must has same length return false; else { String C = A + A; if(C.contains(B))// rotate and same return true; } return false; } } |