diff --git a/seed/challenges/08-coding-interview-questions-and-take-home-assignments/project-euler-problems.json b/seed/challenges/08-coding-interview-questions-and-take-home-assignments/project-euler-problems.json
index 43ca6a8f78..d167537724 100644
--- a/seed/challenges/08-coding-interview-questions-and-take-home-assignments/project-euler-problems.json
+++ b/seed/challenges/08-coding-interview-questions-and-take-home-assignments/project-euler-problems.json
@@ -1491,11 +1491,9 @@
"title": "Problem 41: Pandigital prime",
"tests": [
"assert(pandigitalPrime(4) == 4231, 'message: pandigitalPrime(4)
should return 4231.');",
- "assert(pandigitalPrime(5) == 0, 'message: pandigitalPrime(5)
should return 0.');",
- "assert(pandigitalPrime(6) == 0, 'message: pandigitalPrime(6)
should return 0.');",
"assert(pandigitalPrime(7) == 7652413, 'message: pandigitalPrime(7)
should return 7652413.');"
],
- "solutions": [],
+ "solutions": ["function pandigitalPrime(n) {\n function isPrime(num) {\n for (let i = 2, s = Math.sqrt(num); i <= s; i++) {\n if (num % i === 0) {\n return false;\n }\n }\n return num !== 1;\n }\n\n function getPermutations(n) {\n if (n === 1) {\n permutations.push(digitsArr.join(''));\n } else {\n for (let i = 0; i < n - 1; i++) {\n getPermutations(n - 1);\n // swap(n % 2 === 0 ? i : 0, n - 1);\n if (n % 2 === 0) {\n swap(i, n - 1);\n } else {\n swap(0, n - 1);\n }\n }\n getPermutations(n - 1);\n }\n }\n function swap(x, y) {\n let temp = digitsArr[x];\n digitsArr[x] = digitsArr[y];\n digitsArr[y] = temp;\n }\n let max = 0;\n let permutations = [];\n let digitsArr;\n let pandigitalNum = '';\n\n for (let max = n; max > 0; max--) {\n pandigitalNum += max;\n }\n\n for (let i = 0; i < pandigitalNum.length; i++) {\n if (max > 0) {\n break;\n } else {\n permutations = [];\n const currMax = pandigitalNum.slice(i);\n digitsArr = currMax.split('');\n getPermutations(digitsArr.length);\n\n // sort permutations in descending order\n permutations.sort(function(a, b) {\n return b - a;\n });\n\n for (let perm of permutations) {\n const thisPerm = parseInt(perm);\n if (isPrime(thisPerm)) {\n max = thisPerm;\n break;\n }\n }\n }\n }\n\n return max;\n}"],
"translations": {},
"challengeSeed": [
"function pandigitalPrime(n) {",
@@ -1506,8 +1504,8 @@
"pandigitalPrime(7);"
],
"description": [
- "We shall say that an n-digit number is pandigital if it makes use of all the digits 1 to n exactly once. For example, 2143 is a 4-digit pandigital and is also prime.",
- "What is the largest n-length digit pandigital prime that exists?"
+ "We shall say that an n-digit number is pandigital if it makes use of all the digits 1 to n exactly once. For example, 2143 is a 4-digit pandigital and is also prime.",
+ "What is the largest n-length digit pandigital prime that exists?"
]
},
{