AtCoder Regular Contest 063 review

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C – 一次元リバーシ / 1D Reversi

 

D – 高橋君と見えざる手 / An Invisible Hand

I didn’t notice that there is a restriction that each \(A_i \) is different. So it took time for implementation.

 

E – 木と整数 / Integers on a Tree

Follow editorial.

 

 

 

 

 

 

 

 

 

 

 

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