407987: GYM102961 A Distinct Numbers
Memory Limit：256 MB
Time Limit：2 S
Judge Style：Text Compare
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Description
A. Distinct Numberstime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard output
You are given a list of $$$n$$$ integers, and your task is to calculate the number of distinct values in the list.
InputThe first input line has an integer $$$n$$$: the number of values.
The second line has $$$n$$$ integers $$$x_1,x_2,\dots,x_n$$$.
Constraints:
- $$$1 \le n \le 2 \cdot 10^5$$$
- $$$1 \le x_i \le 10^9$$$
Print one integer: the number of distinct values.
ExampleInput5 2 3 2 2 3Output
2