# 2456. Most Popular Video Creator
###### tags: `Leetcode` `Medium`
Link: https://leetcode.com/problems/most-popular-video-creator/description/
## 思路
记录下所有creator的所有影片的total view 放在```creatorViewCnt```里面
并且记录下total view的最大值

## Code

class Solution {
public List<List<String>> mostPopularCreator(String[] creators, String[] ids, int[] views) {
long maxView = 0;
Map<String, Long> creatorViewCnt = new HashMap<>();
Map<String, Integer> creatorVideoIdx = new HashMap<>();
int n = creators.length;
for(int i=0; i<creators.length; i++){
String creator = creators[i];
String id = ids[i];
int view = views[i];
creatorViewCnt.put(creator, creatorViewCnt.getOrDefault(creator, 0L)+view);
if(creatorViewCnt.get(creator)>maxView){
maxView = creatorViewCnt.get(creator);
}
if(!creatorVideoIdx.containsKey(creator) || views[creatorVideoIdx.get(creator)]<view || (views[creatorVideoIdx.get(creator)]==view && ids[creatorVideoIdx.get(creator)].compareTo(id)>0)){
creatorVideoIdx.put(creator, i);
}
}
List<List<String>> ans = new ArrayList<>();
for(String key:creatorViewCnt.keySet()){
if(creatorViewCnt.get(key)==maxView){
List<String> temp = new ArrayList<>();
temp.add(key);
temp.add(ids[creatorVideoIdx.get(key)]);
ans.add(temp);
}
}
return ans;
}
}