Explanation doubt

At 2:48 ,pls explain the meaing of line 10(lambda expression)

hello @vatsal50

that is comparator that will order character in decreasing order of their frequency in priority queue

pls tell in terms of comparator function

i cant help u much in java , pls read about priority comparators in java from here-> link

I am ok with c++. Just help me with function

bool cmp(char x ,char y ) {

    return mp[x]<mp[y]; // this will build a max heap over the frequency of characters

}

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