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id, title, challengeType, dashedName
| id | title | challengeType | dashedName |
|---|---|---|---|
| 699c8e045ee7cb94ed2322d7 | Challenge 216: Pi Day | 28 | challenge-216 |
--description--
Happy pi (π) day!
Given an integer (n), where n is between 1 and 1000 (inclusive), return the nth decimal of π.
- Make sure to return a number not a string.
π with its first five decimals is 3.14159. So given 5 for example, return 9, the fifth decimal.
You may have to find the first 1000 decimals of π somewhere.
--hints--
getPiDecimal(5) should return 9.
assert.strictEqual(getPiDecimal(5), 9);
getPiDecimal(10) should return 5.
assert.strictEqual(getPiDecimal(10), 5);
getPiDecimal(22) should return 6.
assert.strictEqual(getPiDecimal(22), 6);
getPiDecimal(39) should return 7.
assert.strictEqual(getPiDecimal(39), 7);
getPiDecimal(76) should return 2.
assert.strictEqual(getPiDecimal(76), 2);
getPiDecimal(384) should return 4.
assert.strictEqual(getPiDecimal(384), 4);
getPiDecimal(601) should return 0.
assert.strictEqual(getPiDecimal(601), 0);
getPiDecimal(1000) should return 9.
assert.strictEqual(getPiDecimal(1000), 9);
--seed--
--seed-contents--
function getPiDecimal(n) {
return n;
}
--solutions--
function getPiDecimal(n) {
const pi = "31415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679821480865132823066470938446095505822317253594081284811174502841027019385211055596446229489549303819644288109756659334461284756482337867831652712019091456485669234603486104543266482133936072602491412737245870066063155881748815209209628292540917153643678925903600113305305488204665213841469519415116094330572703657595919530921861173819326117931051185480744623799627495673518857527248912279381830119491298336733624406566430860213949463952247371907021798609437027705392171762931767523846748184676694051320005681271452635608277857713427577896091736371787214684409012249534301465495853710507922796892589235420199561121290219608640344181598136297747713099605187072113499999983729780499510597317328160963185950244594553469083026425223082533446850352619311881710100031378387528865875332083814206171776691473035982534904287554687311595628638823537875937519577818577805321712268066130019278766111959092164201989"
return Number(pi[n]);
}