201190: [AtCoder]ARC119 A - 119 × 2^23 + 1
Description
Score: $300$ points
Problem Statement
In problems on AtCoder, you are often asked to:
find the answer modulo $998244353$.
Here, we have $998244353 = 119 \times 2^{23} + 1$. Related to this, solve the following prolem:
You are given an integer $N$.
Print the minimum possible value of $a + b + c$ for a triple of non-negative integers $(a, b, c)$ satisfying $N = a \times 2^b + c$.
Constraints
- $1 \leq N \leq 10^{18}$
- $N$ is an integer.
Input
Input is given from Standard Input in the following format:
$N$
Output
Print the answer.
Sample Input 1
998244353
Sample Output 1
143
We have $998244353 = 119 \times 2^{23} + 1$, in other words, the triple $(a, b, c) = (119, 23, 1)$ satisfies $N = a \times 2^{b} + c$.
The value $a+b+c$ for this triple is $143$.
There is no such triple where $a+b+c \leq 142$, so $143$ is the correct output.
Sample Input 2
1000000007
Sample Output 2
49483
We have $1000000007 = 30517 \times 2^{15} + 18951$, in other words, the triple $(a, b, c) = (30517, 15, 18951)$ satisfies $N = a \times 2^{b} + c$.
The value $a+b+c$ for this triple is $49483$.
There is no such triple where $a+b+c \leq 49482$, so $49483$ is the correct output.
Sample Input 3
1
Sample Output 3
1
Note that we have $2^0 = 1$.
Sample Input 4
998984374864432412
Sample Output 4
2003450165