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CRDS - Cards |
Maricruz have a lot of cards, she always uses her cards to build pyramids as shown in the following image:
A pyramid card of 3 levels. She always wonder how many cards does she need to make a pyramid card of N levels. Your task is to answer that question.
Input
The first line of the input contains an integer 1 <= T <= 1,000. Each of the following T lines will have an integer 1 <= N <= 1,000,000.
Output
For each case, output a single line consisting of the number of cards needed to build a pyramid card of level N modulo 1,000,007.
Example
Input Example 2 3 7 Output Example 15 77
Added by: | Paulo Costa |
Date: | 2012-01-30 |
Time limit: | 1s |
Source limit: | 50000B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | All except: ASM64 |
Resource: | UGTO |
hide comments
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2017-11-30 17:14:50
don't take modulo while calculating,take it once only at the end and declare the ans and level as long long int . |
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2017-10-20 11:13:49
"modulo 1000007" cost me 2 WA (-_-) |
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2017-10-13 13:18:42
easy question but difficult to understand written language in question. |
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2017-10-13 13:16:54
wrong explanation there should be comma after N in last line |
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2017-09-25 07:49:52
3 liner in python3! |
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2017-09-14 20:17:50
in my case it is showing wrong answer but in ideone its giving the correct output why???? Last edit: 2017-09-14 20:18:13 |
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2017-09-06 00:12:34
for c/c++ use long long for "n","answer" for sure |
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2017-09-05 15:54:55
AC in a go................ |
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2017-09-05 05:57:57
AC in 1 go................... |
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2017-08-28 02:30:52
@vishal3410 be careful to initiallize your variables on the stack properly with c based languages especially N and T in your case, no need to treat two separate cases here @all easy once you derive the correct formula |