Can It Be a Triangle
Can three sticks of lengths A, B, C form a triangle with positive area?
Input: one line with three integers A B C.
Output: YES or NO.
Constraints:
- 1 ≤ A, B, C ≤ 1018
Sample Tests
Input 1
3 4 5
Output 1
YES
Input 2
1 2 3
Output 2
NO
Discussion (opens after you solve — no spoilers before)
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