Anyone Help In SIMPUL

When I used multimap it gives wrong but when I used multiset it gives AC, What is the difference in code it made WA https://www.codechef.com/viewsolution/37179813 and AC https://www.codechef.com/viewsolution/37179834.

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Use a map<int,vector> with h as key and store the corresponding x in vector. Sort the vector and apply lower bound in it and the check for the conditions u did in your code. I hope this helps, if not I will provide u with the code.

I am not asking for this bro , read my doubt please .