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IITWPC4B - Maggu and Triangles |
Maggu has a wire of length n. He has to make triangles out of it such that the side lengths of each triangle are integers. He now wants to know the number of distinct (not congruent) triangles that he can create using the wire of length n. Note that he has to use all of the wire in making the triangle.
Input
First line contains T: number of test cases. (1 <= T <= 10^5)
For each test case, there is a single line containging an integer n (n >= 1 && n <= 10^9)
Output
Each test case output a single integer representing the number of triangles he can create.
Example
Input:
3
5
7
9 Output:
1
2
3
Added by: | praveen123 |
Date: | 2014-01-31 |
Time limit: | 2s |
Source limit: | 50000B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | All except: ASM64 |
Resource: | IITK ACA CSE online judge |
hide comments
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2022-12-25 13:57:07
got green in one go! |
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2018-03-22 08:20:45
do not waste time! use AlcuinsSequence |
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2016-01-23 13:17:41 Liquid_Science
faltu question -_- |
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2016-01-17 17:07:26
waste of time |
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2015-12-23 23:18:23 Shashank Tiwari
Don't waste your time on this question. This is based on mathematical formula. Just google. You will only benefit if you delve into deriving it else waste of time. Make sure that formula has rounding function and not ceiling or floor. Last edit: 2015-12-23 23:19:05 |
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2015-12-10 14:49:22 Siddharth Singh
Shantanu's Comment Really Helped :) |
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2015-08-31 21:33:13 shantanu tripathi
http://mathworld.wolfram.com/AlcuinsSequence.html read this to solve |
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2015-03-24 18:40:17 sushilverma
why is it 3 for n=9 |
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2014-03-05 23:45:48 AlcatraZ
for n=5, the only valid triangle which can be formed is of sides 1,2,2. hence ans is 1. ;) |
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2014-02-06 08:59:53 $iddharth prasad
@Ankush Jain ans for n=4 is 0 |