P15084 [GeeksforGeeks] Consecutive numbers for sum3132
普及-
题目描述

Given a number N, find whether N can be expressed as sum of two or more consecutive positive numbers.

Example 1:
Input:
N = 10
Output:
Yes
Explanation:
10 can be expressesd as 1+2+3+4.
Example 2:
Input:
N = 8
Output:
No
Explanation:
8 can't be expressesd sum of two or
more consecutive numbers.
Example 3:
Input:
N = 24
Output:
Yes
Explanation:
24 can be expressesd as 7+8+9.

Your Task:
You don't need to read input or print anything. Your task is to complete the function isSumOfConsecutive() which takes an Integer N as input and returns "Yes" and "No" accordingly.

Expected Time Complexity: O(1)
Expected Auxiliary Space: O(1)

Constraints:
1 <= N <= 10^{5}

输入格式

见题面

输出格式

见题面

样例输入
N = 10
样例输出
Yes