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TRICOUNT - Counting Triangles |
We define the LEVEL of a triangle as in the following illustrative image:
Task: Your task is very easy. All you have to do is to count all triangles in the biggest one (Level N).
Input
The first line of the input contains an integer T (T ≤ 10000) - the number of test cases and T lines follow. Each line contains an integer N (1 ≤ N ≤ 106) which is the level of the triangle in that test case.
Output
For each test case, you should write a seperate line: the number of triangles in the biggest one (Level N). (All answers will fit within the range of a 64-bit integer)
Example
Input:
3
1
2
3
Output:
1
5
13
Source limit is 500 bytes.
Added by: | nha.duong |
Date: | 2007-08-05 |
Time limit: | 1s |
Source limit: | 500B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | All except: ASM64 ERL JS-RHINO NODEJS OBJC PERL6 SQLITE VB.NET |
Resource: | Trần Huy Hưng |
hide comments
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2024-05-22 16:49:35
How does level 3 look like? Does it have 2^3 small triangles? It could have been better if it was shown in problem statement. |
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2024-03-12 05:29:54
IwillapplyfortheInternationalObfuscatedCCodeContestwithmycode |
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2021-06-10 16:42:46
Don't watch video explanations. Derive the formula on your own... *HINT*:- Its Arithmetic progression with variable difference , grab your pen and notebook :) |
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2021-05-09 14:31:55
Use unsigned long long and take your time to get "correct" formula. |
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2021-02-05 18:42:41
Giving wrong answer after test case 8?? |
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2020-10-10 19:37:48
solution should be less than 500 b .. gareebi level : SPOJ |
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2020-09-23 13:42:47
TAKE INPUT AS LONG LONG UNSIGNED!!!! VV IMP |
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2020-08-23 13:51:32
@aryan_0406 you got this i believe in you dude |
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2020-03-27 22:19:48
use long long also during accepting input than only in writing answer otherwise you'll get wrong answer. This error costs me 3 wrong submission. Last edit: 2020-03-27 22:21:13 |
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2020-03-20 19:55:10
Nothing is impossible friends,use your mind and solve this problem. I am also trying this problem from the previous one year and i am confident that one day i will be able to solve this problem efficiently. |