Gửi bài giải
Điểm:
10,00 (OI)
Giới hạn thời gian:
1.0s
Giới hạn bộ nhớ:
256M
Input:
stdin
Output:
stdout
Dạng bài
Ngôn ngữ cho phép
C, C++, Java, Kotlin, Pascal, PyPy, Python, Scratch
Cho số nguyên dương ~x~ (~x≤10^9~)
Yêu cầu:
Đếm số lượng các số nguyên dương không lớn hơn ~x~ chia hết cho cả ~2~ và ~3~
Input:
Một dòng duy nhất chứa số tnguyên dương ~x~
Output:
Kết quả bài toán
Ví dụ:
Input
15
Output
2
Bình luận
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khó vãi lonkhó vãi lon
9
.