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90 lines
2.3 KiB
Markdown
90 lines
2.3 KiB
Markdown
---
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id: 699c8e045ee7cb94ed2322d7
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title: "Challenge 216: Pi Day"
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challengeType: 28
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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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`getPiDecimal(5)` should return `9`.
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```js
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assert.strictEqual(getPiDecimal(5), 9);
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```
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`getPiDecimal(10)` should return `5`.
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```js
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assert.strictEqual(getPiDecimal(10), 5);
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```
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`getPiDecimal(22)` should return `6`.
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```js
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assert.strictEqual(getPiDecimal(22), 6);
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```
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`getPiDecimal(39)` should return `7`.
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```js
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assert.strictEqual(getPiDecimal(39), 7);
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```
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`getPiDecimal(76)` should return `2`.
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```js
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assert.strictEqual(getPiDecimal(76), 2);
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```
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`getPiDecimal(384)` should return `4`.
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```js
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assert.strictEqual(getPiDecimal(384), 4);
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```
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`getPiDecimal(601)` should return `0`.
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```js
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assert.strictEqual(getPiDecimal(601), 0);
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```
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`getPiDecimal(1000)` should return `9`.
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```js
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assert.strictEqual(getPiDecimal(1000), 9);
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```
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# --seed--
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## --seed-contents--
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```js
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function getPiDecimal(n) {
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return n;
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}
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```
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# --solutions--
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```js
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function getPiDecimal(n) {
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const pi = "31415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679821480865132823066470938446095505822317253594081284811174502841027019385211055596446229489549303819644288109756659334461284756482337867831652712019091456485669234603486104543266482133936072602491412737245870066063155881748815209209628292540917153643678925903600113305305488204665213841469519415116094330572703657595919530921861173819326117931051185480744623799627495673518857527248912279381830119491298336733624406566430860213949463952247371907021798609437027705392171762931767523846748184676694051320005681271452635608277857713427577896091736371787214684409012249534301465495853710507922796892589235420199561121290219608640344181598136297747713099605187072113499999983729780499510597317328160963185950244594553469083026425223082533446850352619311881710100031378387528865875332083814206171776691473035982534904287554687311595628638823537875937519577818577805321712268066130019278766111959092164201989"
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return Number(pi[n]);
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}
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```
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