Created
October 30, 2016 21:24
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| function processData(input) { | |
| var residues = {}; | |
| for (var i = 0; i < input.length; i++) { | |
| var curNum = input[i]; | |
| var residue = curNum % k; | |
| if (residue in residues) { | |
| residues[residue] += 1; | |
| } else { | |
| residues[residue] = 1; | |
| } | |
| } | |
| var upperLimit = k % 2 == 0 ? k / 2 : (k / 2) + 1; | |
| var maxSize = 0; | |
| // if k is even, then check if k/2 == 1 | |
| if (k % 2 == 0 && (k / 2) in residues && residues[k/2] >= 1) | |
| maxSize = 1; | |
| for (var i = 1; i < upperLim; i++) { | |
| var residueVal = i in residues ? residues[i] : 0; | |
| var residueComplement = (k - i) in residues ? residues[k - i] : 0; | |
| maxSize += Math.max(residueVal, residueComplement); | |
| } | |
| return maxSize; | |
| } |
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