Leetcode biweekly contest 134 - Video Editorial | Global Rank - 44

[@SohailKhan-cx9gb]

4th one was easy solved using map
#define ll long long
class Solution {
public:
long long countSubarrays(vector& nums, int k) {
int n=nums.size();
mapm1;
ll cnt=0;
for(auto v:nums){
mapm2;
for(auto [u,f]:m1){
ll vl=v&u;
m2[vl]+=f;
}
m2[v]++;
cnt+=m2[k];
m1=m2;
}
return cnt;
}
};

[@mind_blazed]

How can I reach there like you ? What should I do . I am struggling for 2nd 3rd problem .😢

[@Rlxn5]

I want to see you in Candidate master ✨

[@VEED_Edits]

Great work bro.