|| ||Code Submission Evaluation System
CSES Problem Set
Task | Statistics
CSES - Counting Bits
|Time limit:||1.00 s
||Memory limit:||512 MB|
Your task is to count the number of one bits in integers between $1 \ldots n$.
The only input line has an integer $n$.
Print the number of one bits in integers between $1 \ldots n$.
Explanation: The bit representations of $1 \ldots 7$ are 1, 10, 11, 100, 101, 110, and 111, so there are a total of 12 one bits.