题目描述
Given the series as follows 2 2 4 8 16 512....... Identify the Nth term of the series. Answers can be very large use BigInt in Java.
Example 1:
Input: N = 1
Output: 2
Explanation: First term of the series is 2.
Example 2:
Input: N = 2
Output: 2
Explanation: Second term of the series is 2.
Your Task:
You dont need to read input or print anything. Complete the function NthTerm() which takes N as input parameter and returns the Nth term of the series.
Expected Time Complexity: O(logn*logn)
Expected Auxiliary Space: O(1)
Constraints:
1<= N <=12
输入格式
见题面
输出格式
见题面
样例输入
N = 1
样例输出
2