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publicstaticintpickingNumbers(List<Integer>a){// Write your code hereCollections.sort(a);intmax=0;inttotal=0;booleandiffNumber=false;for(inti=0;i<a.size()-1;i++){if(a.get(i+1)-a.get(i)==0){total++;}elseif(a.get(i+1)-a.get(i)==1&&!diffNumber){total++;diffNumber=true;}else{total=0;diffNumber=false;}if(total>max)max=total;}returnmax+1;}
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Picking Numbers
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SIMPLE JAVA 8