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you can try like:
input = Integer(gets.chomp)
ans = 1
for i in 1..input
ans = ans*i
end
print(ans)
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solved How to calculate factorial in ruby [duplicate]
[ad_1]
you can try like:
input = Integer(gets.chomp)
ans = 1
for i in 1..input
ans = ans*i
end
print(ans)
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solved How to calculate factorial in ruby [duplicate]