SUMPRO - SUM OF PRODUCT
Given a number N, find the sum of all products x * y such that N / x = y (integer division).
Since the sum can be very large, please output this modulo 1000000007.
Input
The first line of input file contains an integer T, the number of test cases to follow. Each of the next T lines contain an integer N.
Output
Output T lines containing the answer to corresponding test case.
Example
Input: 3 2 4 6 Output: 4 15 33
Constraints:
1 ≤ T ≤ 500
1 ≤ N ≤ 109
Explanation
Case #1:
2 / 1 = 2
2 / 2 = 1
Answer = 1 * 2 + 2 * 1 = 4
Case #2:
4 / 1 = 4
4 / 2 = 2
4 / 3 = 1
4 / 4 = 1
Answer = 1 * 4 + 2 * 2 + 3 * 1 + 4 * 1 = 15
hide comments
vl4deee11:
2024-11-30 13:31:50
very intersting!!!
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sabkx:
2021-06-19 16:01:15
i got all the judges right except the master judge help
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Rafail Loizou:
2021-01-09 16:30:28
TLE with O(sqrt(n)) solution and scanfs printf |
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ayush_06:
2020-12-31 12:54:03
why i getting wrong answer ??upto test case 6 it showing correct. |
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Shubham Jadhav:
2020-06-28 20:35:58
Beautiful Problem |
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ck_17:
2020-06-08 10:55:47
jut write down few test cases and observe. ex 12 |
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hung02:
2020-05-18 18:24:41
Awwwww AC finally :D 1.43s 4.3M O(2*sqrt(n))
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landi58:
2020-05-08 20:24:42
Hi, can anyone please help me to solve this question in O(sqrt(n)). I am trying hard and ablw to solve in n/2 but not in sqrt(n). Please tell how to solve this. |
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nadstratosfer:
2020-04-04 17:01:50
tejas_vi: sumbit in PyPy: https://www.spoj.com/ranks/SUMPRO/lang=PYPY2.4
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tejas_vi:
2020-04-04 15:23:59
Its an Easy question but my python code is showing (time limit exceeded) but on ideone the following message pops ((Success #stdin #stdout 0.01s 7184KB)), idk whats wrong with SPOJ |
Added by: | ivar.raknahs |
Date: | 2015-01-23 |
Time limit: | 1s-1.5s |
Source limit: | 50000B |
Memory limit: | 1536MB |
Cluster: | Cube (Intel G860) |
Languages: | All |
Resource: | Own |