Count Even Numbers

Count Even Numbers

Count how many elements of an array are even.

Input format

The first line contains N. The second line contains N space-separated integers.

Output format

Print how many elements of the array are even.

Constraints

• Values fit in a 64-bit signed integer
• Trailing whitespace and a trailing newline are ignored by the judge

Read from stdin, write to stdout. Sample cases below show the exact format.

5
3 1 4 1 5

1

4
10 20 30 40

4