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Leetcode Problem 829. Consecutive Numbers Sum
829. Consecutive Numbers Sum
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Leetcode Solutions
Mathematical: Sum of First k Natural Numbers
Solution Idea
Algorithm Steps
Code Implementation
Complexity Analysis
Initialize a counter to zero.
Iterate over
k
from 1 to
sqrt(2n + 1/4) - 1/2
.
For each
k
, calculate
x
using the formula
x = n/k - (k + 1)/2
.
Check if
x
is a non-negative integer.
If
x
is an integer and
x >= 0
, increment the counter.
Return the counter as the number of ways
n
can be written as the sum of consecutive positive integers.
Mathematical: Decrease N Gradually
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