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Update sol2.py

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Bhaavik Pratyush 2018-04-16 19:17:28 +05:30 committed by GitHub
parent dbfc220264
commit 3562182542
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1 changed files with 6 additions and 6 deletions
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Project Euler/Problem 01/sol2.py
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@ -11,10 +11,10 @@ except NameError:
raw_input = input # Python 3 raw_input = input # Python 3
n = int(raw_input().strip()) n = int(raw_input().strip())
sum = 0 sum = 0
terms = (n-1)/3 terms = (n-1)//3
sum+= ((terms)*(6+(terms-1)*3))/2 #sum of an A.P. sum+= ((terms)*(6+(terms-1)*3))//2 #sum of an A.P.
terms = (n-1)/5 terms = (n-1)//5
sum+= ((terms)*(10+(terms-1)*5))/2 sum+= ((terms)*(10+(terms-1)*5))//2
terms = (n-1)/15 terms = (n-1)//15
sum-= ((terms)*(30+(terms-1)*15))/2 sum-= ((terms)*(30+(terms-1)*15))//2
print(sum) print(sum)