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Update MissingInteger.md #1

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23 changes: 7 additions & 16 deletions MissingInteger.md
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Original file line number Diff line number Diff line change
Expand Up @@ -33,22 +33,13 @@ Elements of input arrays can be modified.
// console.log('this is a debug message');

function solution(A) {
// Filter positive
A = A.filter(i => (i > 0))

// sort arrays
A.sort((a, b) => (a - b))

if (A.length == 1 && A[0] === 1) {
return 2
}

if (A[0] !== 1) return 1

for (var i=1; i<A.length; i++) {
if ((A[i] - A[i-1]) > 1) return A[i-1] + 1
// write your code in JavaScript (Node.js 8.9.4)
const a = [...new Set(A.filter(a => a > 0).sort((a, b) => a - b))];

for (let i = 0; i <= a.length; i++) {
if (a[i] !== i + 1) {
return i + 1;
}
}

return A[A.lenth -1] + 1
}
```