| author | Prabhu Ramachandran <prabhu@aero.iitb.ac.in> |
| Mon, 14 Jun 2010 20:16:05 -0400 | |
| branch | scipy2010 |
| changeset 399 | 7775af81b51a |
| parent 380 | 669b72283b55 |
| permissions | -rw-r--r-- |
|
64
333092b68926
Added quiz tex file and all exercise problems Madhu worked out.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
diff
changeset
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1 |
import math |
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333092b68926
Added quiz tex file and all exercise problems Madhu worked out.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
diff
changeset
|
2 |
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333092b68926
Added quiz tex file and all exercise problems Madhu worked out.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
diff
changeset
|
3 |
def aliquot(n): |
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380
669b72283b55
Updated after Day 2 at GRDCS
Santosh G. Vattam <vattam.santosh@gmail.com>
parents:
64
diff
changeset
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4 |
sum = 1 |
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669b72283b55
Updated after Day 2 at GRDCS
Santosh G. Vattam <vattam.santosh@gmail.com>
parents:
64
diff
changeset
|
5 |
i = 2 |
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669b72283b55
Updated after Day 2 at GRDCS
Santosh G. Vattam <vattam.santosh@gmail.com>
parents:
64
diff
changeset
|
6 |
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|
669b72283b55
Updated after Day 2 at GRDCS
Santosh G. Vattam <vattam.santosh@gmail.com>
parents:
64
diff
changeset
|
7 |
while i * i < n: |
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64
333092b68926
Added quiz tex file and all exercise problems Madhu worked out.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
diff
changeset
|
8 |
if n % i == 0: |
|
380
669b72283b55
Updated after Day 2 at GRDCS
Santosh G. Vattam <vattam.santosh@gmail.com>
parents:
64
diff
changeset
|
9 |
sum += i + (n / i) |
|
669b72283b55
Updated after Day 2 at GRDCS
Santosh G. Vattam <vattam.santosh@gmail.com>
parents:
64
diff
changeset
|
10 |
i += 1 |
|
669b72283b55
Updated after Day 2 at GRDCS
Santosh G. Vattam <vattam.santosh@gmail.com>
parents:
64
diff
changeset
|
11 |
if i*i == n: sum += i |
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64
333092b68926
Added quiz tex file and all exercise problems Madhu worked out.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
diff
changeset
|
12 |
return sum |
|
333092b68926
Added quiz tex file and all exercise problems Madhu worked out.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
diff
changeset
|
13 |
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|
333092b68926
Added quiz tex file and all exercise problems Madhu worked out.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
diff
changeset
|
14 |
amicable = [] |
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380
669b72283b55
Updated after Day 2 at GRDCS
Santosh G. Vattam <vattam.santosh@gmail.com>
parents:
64
diff
changeset
|
15 |
for n in range(1000, 10000): |
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64
333092b68926
Added quiz tex file and all exercise problems Madhu worked out.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
diff
changeset
|
16 |
m = aliquot(n) |
|
380
669b72283b55
Updated after Day 2 at GRDCS
Santosh G. Vattam <vattam.santosh@gmail.com>
parents:
64
diff
changeset
|
17 |
if m > n and aliquot(m) == n: |
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64
333092b68926
Added quiz tex file and all exercise problems Madhu worked out.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
diff
changeset
|
18 |
amicable.append((m, n)) |
|
333092b68926
Added quiz tex file and all exercise problems Madhu worked out.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
diff
changeset
|
19 |
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333092b68926
Added quiz tex file and all exercise problems Madhu worked out.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
diff
changeset
|
20 |
print amicable |
|
333092b68926
Added quiz tex file and all exercise problems Madhu worked out.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
diff
changeset
|
21 |
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333092b68926
Added quiz tex file and all exercise problems Madhu worked out.
Madhusudan.C.S <madhusudancs@gmail.com>
parents:
diff
changeset
|
22 |
# please please please profile this. |