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The Knights Of The Round Table

ด ฌธ œŠ”

ธธฐ„:A(A,B,C), „ณตฅ :ณดํ†ต(‚ฎŒ,ณดํ†ต,†’Œ),  ˆฒจ:2(1~4)

TheKnightsOfTheRoundTable

•„„œ ™•ด ฒœžฅ— ‚ฐํ˜• ฐฝด žˆŠ” ฐฉ— ›ํƒ„ †“„ „ํš„ „šฐณ  žˆ‹ค. ทธŠ” ํ–‡›ด ›ํƒ œ„— „ถ”ฒŒ ํ•˜ณ  ‹ถ‹ค. ํŠํžˆ  •˜ค— ํƒœ–‘ด ฐ”กœ จธฆฌ œ„— žˆ„ •ŒŠ” ›ํƒ  „ฒด— ํ–‡›ด „ถ”„ก ํ•˜ คณ  ํ•œ‹ค.

ทธž˜„œ ทธ ›ํƒ€ ฐฉ •ˆ˜ ํŠ •ํ•œ ‚ฐํ˜• ˜—ญ •ˆ— žฆฌžก•„• ํ•œ‹ค. ก  •„„œ ™•€ –ด„ กฐ‚ด—„œ ตœŒ€ํ•œ ํฐ ›ํƒ„ งŒ“คณ  ‹ถ–ดํ•œ‹ค.

€ฆฐด  ‹ฌ„ œŸฌ ‚˜„ ‚ฌด— ํ•ด€ „ถ”Š” ˜—ญ— “ค–ดฐˆ ˆ˜ žˆŠ” €žฅ ํฐ ›ํƒ˜ ฐ˜€„„ „‚ฐํ•˜Š” ํ”„กœทธžจ„ งŒ“ค–ด• ํ•œ‹ค.

Input

ํ…ŒŠคํŠธ €ดŠค˜ ฐœˆ˜—Š”  œํ•œด —†œฉฐ, ฐ ํ…ŒŠคํŠธ €ดŠคงˆ‹ค ‚ฐํ˜•˜ „€˜ ธธด ‚˜ํƒ€‚ดŠ” ‹คˆ˜ „ฐœ(a,b,c)€ ž… ฅœ‹ค. –ด–ค €˜ ธธด„ 1,000,000„ „˜€ •Šœฉฐ, max(a,b,c) โ‰ค (a+b+c)/2 ณ  € •ํ•ด„ œ‹ค.

ํŒŒ — ‹ค‹ค •ŒŒ€ „† ž… ฅ„ ฐ›Š”‹ค.

output

ฐ ํ…ŒŠคํŠธ €ดŠคงˆ‹ค ‹คŒ ฐ™€ ฒฐ ถœ ฅํ•œ‹ค.
{{| The radius of the round table is: r |}}
—ฌธฐ—„œ r€  •˜ค— ํ•ด€ „ถ”Š” ˜—ญ— “ค–ดฐˆ ˆ˜ žˆŠ” ›ํƒ˜ ตœŒ€ ฐ˜€„ดฉฐ, †Œˆ˜  …‹งธ žฆฌŒ€ ฐ˜˜ฌํ•œ ฐ’„ ถœ ฅํ•œ‹ค.

Sample Input

{{| 12.0 12.0 8.0 |}}

Sample Output

{{| The radius of the round table is: 2.828 |}}

ํ’€ด

ž‘„ž ‚ฌšฉ–ธ–ด ฐœฐœ‹œ„ ฝ”“œ
ํ•˜ธฐ›… C++ 1‹œ„ TheKnightsOfTheRoundTable/ํ•˜ธฐ›…
€ƒ„ C++ —„ฒญ TheKnightsOfTheRoundTable/€ƒ„
ฌธณดฐฝ C++ 10„ TheKnightsOfTheRoundTable/ฌธณดฐฝ
ํ—ˆ€ˆ˜ C++ ? TheKnightsOfTheRoundTable/ํ—ˆ€ˆ˜
ฌธ œ„ฅ˜ ฒฝ‹œŒ€ํšŒ€„ฐ˜
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