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How Many Fibs?

›๋ฌธ๋ณด๊ธฐ
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ธ๊ธฐ๋„:B(A,B,C), „๊ณต๋ฅ :๋ณด†ต(๋‚ฎŒ,๋ณด†ต,๋†’Œ), ๋ ˆ๋ฒจ:1(1~4)

About HowManyFibs?

”ผ๋ณด๋‚˜น˜ ˆ˜๋Š” ๋‹คŒ๊ณผ ๊ฐ™€ ‹œผ๋กœ  •˜๋œ๋‹ค.
{{|
f<sub>1</sub>:=1
f<sub>2</sub>:=2
f<sub>n</sub>:=f<sub>n-1</sub> + f<sub>n-2
|}}
a™€ b๋ผ๋Š” ๋‘ ˆ˜๊ฐ€ ฃผ–ดกŒ„ ๋•Œ
~cpp
[a,b]
๊ตฌ๊ฐ„— žˆ๋Š” ”ผ๋ณด๋‚˜น˜ ˆ˜˜ ๊ฐœˆ˜๋ฅผ ๊ณ„‚ฐ•˜๋ผ.

Input

ž…๋ ฅ—๋Š” —ฌ๋Ÿฌ ๊ฐœ˜ …ŒŠคŠธ ผ€ดŠค๊ฐ€ ๋“ค–ดžˆ๋‹ค. ๊ฐ …ŒŠคŠธ ผ€ดŠค๋Š” ๋‘ ๊ฐœ˜ Œด •„๋‹Œ  •ˆ˜ a™€ b๋กœ ๊ตฌ„๋œ๋‹ค. a=b=0ด๋ฉด ž…๋ ฅด ข…๋ฃŒ๋œ๋‹ค. ๊ทธ๋ ‡ง€ •Š€ ๊ฒฝšฐ—๋Š” aโ‰คbโ‰ค10<sup>100</sup>ด๋‹ค. a™€ b๊ฐ€ ž…๋ ฅ๋  ๋•Œ •ž๋ถ€๋ถ„— ๋ถˆ•„š”•œ 0€  „˜€ ๋ถ™ง€ •Š๋Š”๋‹ค.

Output

๊ฐ …ŒŠคŠธ ผ€ดŠค๋งˆ๋‹ค a โ‰ค f<sub>i</sub> โ‰คbธ ”ผ๋ณด๋‚˜น˜ ˆ˜ f<sub>i</sub>˜ ๊ฐœˆ˜๋ฅผ •œ „— •˜๋‚˜”ฉ ถœ๋ ฅ•œ๋‹ค.

Sample Input

~cpp 
10 100
1234567890 9876543210
0 0

Sample Output

~cpp 
5
4

’€ด

ž‘„ž ‚ฌšฉ–ธ–ด ๊ฐœ๋ฐœ‹œ๊ฐ„ ฝ”๋“œ
™ฉžฌ„  Java 1h HowManyFibs?/™ฉžฌ„ 
๋ฌธ๋ณดฐฝ C++ 2h HowManyFibs?/๋ฌธ๋ณดฐฝ
1002 Python 1ฐจ: 3‹œ๊ฐ„(‹คŒจ), 2ฐจ: 10๋ถ„ HowManyFibs?/1002
•˜๊ธฐ›… C++ 2h HowManyFibs?/•˜๊ธฐ›…

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