#CCBOTPBA0000023. Kiểm tra số Armstrong 3 chữ số (Three-Digit Armstrong Number)
Kiểm tra số Armstrong 3 chữ số (Three-Digit Armstrong Number)
Three-Digit Armstrong Number
Source: Phước Hưng OJ
Version: Phuoc Hung OJ Extended
Problem Statement
Given a three-digit integer n, check whether the sum of cubes of its digits equals n. Print YES or NO.
Input
An integer n in [100,999].
Output
Exactly YES or NO.
Subtasks
-
Subtask 1 (20%):
100 ≤ n ≤ 299. -
Subtask 2 (30%):
100 ≤ n ≤ 599. -
Subtask 3 (50%):
100 ≤ n ≤ 999.
Examples
Example 1
Input:
153
Output:
YES
Explanation: The sum of digit cubes is 1+125+27=153.
Example 2
Input:
100
Output:
NO
Explanation: The sum of digit cubes is only one.