We use cookies to ensure you have the best browsing experience on our website. Please read our cookie policy for more information about how we use cookies.
Map<Integer,Integer>colorCount=newHashMap<>();// Count occurrences of each colorfor(intcolor:ar){colorCount.put(color,colorCount.getOrDefault(color,0)+1);}intpairs=0;// Calculate pairs for each colorfor(intcount:colorCount.values()){pairs+=count/2;}returnpairs;}
Cookie support is required to access HackerRank
Seems like cookies are disabled on this browser, please enable them to open this website
Sales by Match
You are viewing a single comment's thread. Return to all comments →
Java 15 and O(n)