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112 lines
2.9 KiB
Markdown
112 lines
2.9 KiB
Markdown
---
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id: 699c8e045ee7cb94ed2322d7
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title: "Challenge 216: Pi Day"
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challengeType: 29
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dashedName: challenge-216
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---
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# --description--
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Happy pi (π) day!
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Given an integer (`n`), where `n` is between 1 and 1000 (inclusive), return the `n`th decimal of π.
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- Make sure to return a number not a string.
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π with its first five decimals is 3.14159. So given `5` for example, return `9`, the fifth decimal.
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You may have to find the first 1000 decimals of π somewhere.
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# --hints--
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`get_pi_decimal(5)` should return `9`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(get_pi_decimal(5), 9)`)
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}})
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```
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`get_pi_decimal(10)` should return `5`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(get_pi_decimal(10), 5)`)
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}})
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```
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`get_pi_decimal(22)` should return `6`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(get_pi_decimal(22), 6)`)
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}})
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```
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`get_pi_decimal(39)` should return `7`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(get_pi_decimal(39), 7)`)
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}})
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```
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`get_pi_decimal(76)` should return `2`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(get_pi_decimal(76), 2)`)
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}})
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```
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`get_pi_decimal(384)` should return `4`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(get_pi_decimal(384), 4)`)
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}})
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```
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`get_pi_decimal(601)` should return `0`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(get_pi_decimal(601), 0)`)
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}})
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```
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`get_pi_decimal(1000)` should return `9`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(get_pi_decimal(1000), 9)`)
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}})
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```
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# --seed--
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## --seed-contents--
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```py
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def get_pi_decimal(n):
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return n
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```
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# --solutions--
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```py
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def get_pi_decimal(n):
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pi = "31415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679821480865132823066470938446095505822317253594081284811174502841027019385211055596446229489549303819644288109756659334461284756482337867831652712019091456485669234603486104543266482133936072602491412737245870066063155881748815209209628292540917153643678925903600113305305488204665213841469519415116094330572703657595919530921861173819326117931051185480744623799627495673518857527248912279381830119491298336733624406566430860213949463952247371907021798609437027705392171762931767523846748184676694051320005681271452635608277857713427577896091736371787214684409012249534301465495853710507922796892589235420199561121290219608640344181598136297747713099605187072113499999983729780499510597317328160963185950244594553469083026425223082533446850352619311881710100031378387528865875332083814206171776691473035982534904287554687311595628638823537875937519577818577805321712268066130019278766111959092164201989"
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return int(pi[n])
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```
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