P19055 [GeeksforGeeks] Crack the series0304
普及-
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