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Self-describing Sequence

›๋ฌธ๋ณดธฐ
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ธฐ๋„:C(A,B,C), „ณต๋ฅ :๋†’Œ(๋‚ฎŒ,๋ณด†ต,๋†’Œ), ๋ ˆ๋ฒจ:2(1~4)

About Self-describingSequence

†”๋กœ๋ชฌ ณจ๋กฑ(Solomon Golomb)˜ žธฐธฐˆ  ˆ˜—ด <f(1), f(2), f(3), ... >€ ฐ k— ๋Œ€•ด k๋ผ๋Š” ˆซžฐ€  •™••˜ฒŒ f(k)๋ฒˆ ๋“ฑžฅ•˜๋Š” †„„ ฐ€ง€๋Š” –‘˜  •ˆ˜๋กœ ตฌ„ฑ๋œ œ •œ ๋น„ฐ†Œˆ˜—ดด๋‹ค. ˆ˜—ด˜ •ž ๋ถ€๋ถ„„ ƒฐ•ด๋ณด๋ฉด ๋‹Œณผ ฐ™€ ‹ด๋ผ๋Š” ฒƒ„ •Œ ˆ˜ žˆ๋‹ค.
http://online-judge.uva.es/p/v100/10049img2.gif
–ด๋–ค ฐ’ nฃผ–ดกŒ„•Œ f(n)˜ ฐ’„ „‚ฐ•˜๋Š” ”„๋กœธ๋žจ„ ๋งŒ๋“ค–ด••œ‹ค.

Input

—ฌ๋Ÿฌ œ˜ …ŒŠคŠธ ผ€Šคฐ€ ž…๋ ฅ๋  ˆ˜ žˆ๋‹ค. ฐ „๋งˆ๋‹•˜๋‚˜”ฉ˜  •ˆ˜ nž…๋ ฅ๋˜๋ฉฐ,  •ˆ˜ •œ œฐ€ •˜๋‚˜˜ …ŒŠคŠธ ผ€Šค๋ฅผ ด๋ฃฌ๋‹ค(1 โ‰ค n โ‰ค 2,000,000,000). nด 0…ŒŠคŠธ ผ€Šคฐ€ ž…๋ ฅ๋˜๋ฉด ž…๋ ข…๋ฃŒ๋˜๋ฉฐ, ผ€Šค๋Š” ˜๋ฆฌ•˜ง€ •Š๋Š”๋‹ค.

Output

ฐ …ŒŠคŠธ ผ€Šค— ๋Œ€••œ „— •˜๋‚˜”ฉ f(n) ฐ’„ œ •œ‹ค.

Sample Input

{{| 100
9999
123456
1000000000
0 |}}

Sample Output

{{| 21
356
1684
438744 |}}

’€

ž‘„ž ‚ฌšฉ–ธ–ด œ๋ฐœ‹œ„ ฝ”๋“œ
๋ฌธ๋ณดฐฝ C++ 2‹œ„ Self-describingSequence/๋ฌธ๋ณดฐฝ
™ฉžฌ„  Java 2‹œ„ Self-describingSequence/™ฉžฌ„ 
1002 Python 1‹œ„ 40๋ถ„ Self-describingSequence/1002
shon matlab 1ฐจ : 1‹œ„ 10๋ถ„, 2ฐจ : 3‹œ„ Self-describingSequence/shon
กฐ˜„ƒœ C++ ? Self-describingSequence/กฐ˜„ƒœ

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