38. Count and Say

Problem's Link

----------------------------------------------------------------------------

Mean:

题目意思太晦涩。

1 读出来 就是“1个1” 所以记为“11”

11 读出来 就是“2个1” 所以记为“21”

21 读出来 就是“1个2 1个1” 所以记为“1221”

....

analyse:

略.

Time complexity: O(N)

view code

1.recursive way:

)
           ; ;
           )
       )
       );
   ;
}
/*

*/

2.no-recursive way:

)
           ;;
               ;
}
/*

*/

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