Hi this is yeon from korea

I'm always thanksful for all guys who help me to learn computer thing :)

Here is another question, I really not sure why my logic gets wrong with test 4.

I wonder about datatype problem, but figure out at python int could endure almost infinite.

This is my code and submission link https://codeforces.com/contest/1872/submission/226595199

Thanks for reading my blog :) and have good luck today for all readers!

Hello

I solve setsandunion(https://codeforces.com/contest/1882/problem/B) by python but memory exceed burst out

I thought that i already handle greedy option but i don't know how to develop further

here is my code https://codeforces.com/contest/1882/submission/225242610