_796.java

package com.fishercoder.solutions;

/**
 * 796. Rotate String

 We are given two strings, A and B.

 A shift on A consists of taking string A and moving the leftmost character to the rightmost position. For example, if A = 'abcde', then it will be 'bcdea' after one shift on A. Return True if and only if A can become B after some number of shifts on A.

 Example 1:
 Input: A = 'abcde', B = 'cdeab'
 Output: true

 Example 2:
 Input: A = 'abcde', B = 'abced'
 Output: false

 Note:

 A and B will have length at most 100.
 */
public class _796 {
  public static class Solution1 {
    public boolean rotateString(String A, String B) {
      if (A.length() != B.length()) {
        return false;
      }
      for (int i = 0; i < A.length(); i++) {
        if ((A.substring(i) + A.substring(0, i)).equals(B)) {
          return true;
        }
      }
      return false;
    }
  }
}