题目描述
The Utopian Tree goes through 2 cycles of growth every year. Each spring, it doubles in height. Each summer, its height increases by 1 meter.
A Utopian Tree sapling with a height of 1 meter is planted at the onset of spring. How tall will the tree be after $n$ growth cycles?
For example, if the number of growth cycles is $n=5$, the calculations are as follows:
Period Height
0 1
1 2
2 3
3 6
4 7
5 14
Function Description
Complete the utopianTree function in the editor below.
utopianTree has the following parameter(s):
int n: the number of growth cycles to simulate
Returns
int: the height of the tree after the given number of cycles
Input Format
The first line contains an integer, $\boldsymbol{\boldsymbol{t}}$, the number of test cases.
$\boldsymbol{\boldsymbol{t}}$ subsequent lines each contain an integer, $n$, the number of cycles for that test case.
Constraints
$1\leq t\leq10$
$0\leq n\leq60$
Sample Input
3
0
1
4
Sample Output
1
2
7
Explanation
There are 3 test cases.
In the first case ($n=0$), the initial height ($H=1$) of the tree remains unchanged.
In the second case ($n=1$), the tree doubles in height and is $2$ meters tall after the spring cycle.
In the third case ($n=4$), the tree doubles its height in spring ($n=1$, $H=2$), then grows a meter in summer ($n=2$, $H=3$), then doubles after the next spring ($n=3$, $H=6$), and grows another meter after summer ($n=4$, $H=7$). Thus, at the end of 4 cycles, its height is $7$ meters.
输入格式
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输出格式
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