added old solutions
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3a4827b082
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14 changed files with 153 additions and 0 deletions
2
py/10.py
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2
py/10.py
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import sympy
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print(sum(filter(sympy.isprime,range(2000000))))
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9
py/2.py
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9
py/2.py
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last1 = 1
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last2 = 2
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res = 2
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while (last1 + last2 <= 4000000):
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new = last1 + last2
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res += (new if new%2 == 0 else 0)
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last1 = last2
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last2 = new
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print(res)
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11
py/3.py
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11
py/3.py
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from sympy.ntheory import isprime
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import math
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def primefactor(x):
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res = 0
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for i in range(2,math.ceil(math.sqrt(x))):
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if(not isprime(i) or x%i != 0): continue
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res = i
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return res
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print(primefactor(600851475143))
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9
py/4.py
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9
py/4.py
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def palindromic(x):
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return str(x) == str(x)[::-1]
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maxi = 0
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for i in range(1,999):
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for j in range(1,999):
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if(palindromic(i*j)): maxi = max(maxi,(i*j))
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print(maxi)
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1
py/7.py
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1
py/7.py
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@ -0,0 +1 @@
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## zzz
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8
py/8.py
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8
py/8.py
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from functools import reduce
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val = list(map(int,list(str(7316717653133062491922511967442657474235534919493496983520312774506326239578318016984801869478851843858615607891129494954595017379583319528532088055111254069874715852386305071569329096329522744304355766896648950445244523161731856403098711121722383113622298934233803081353362766142828064444866452387493035890729629049156044077239071381051585930796086670172427121883998797908792274921901699720888093776657273330010533678812202354218097512545405947522435258490771167055601360483958644670632441572215539753697817977846174064955149290862569321978468622482839722413756570560574902614079729686524145351004748216637048440319989000889524345065854122758866688116427171479924442928230863465674813919123162824586178664583591245665294765456828489128831426076900422421902267105562632111110937054421750694165896040807198403850962455444362981230987879927244284909188845801561660979191338754992005240636899125607176060588611646710940507754100225698315520005593572972571636269561882670428252483600823257530420752963450))))
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res = 0
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for i in range(len(val)-13):
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res = max(res,reduce(lambda a,b: a*b,val[i:i+13]))
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print(res)
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6
py/9.py
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6
py/9.py
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for a in range(1,1000):
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for i in range(1,a):
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b = a+i
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c = 1000-(a+b)
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if(a**2+b**2 == c**2):
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print(a*b*c)
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0
py/93.py
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0
py/93.py
Normal file
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