https://mirror.codeforces.com/contest/1580/submission/130368106↵
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The main idea is to choose the most optimal one number in every step.↵
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![QAQ](/predownloaded/ac/34/ac3459fbf10ba44abb93a83a887cf7a3fe11f818.jpg)↵
↵
The main idea is to choose the most optimal one number in every step.↵
↵
![QAQ](/predownloaded/ac/34/ac3459fbf10ba44abb93a83a887cf7a3fe11f818.jpg)↵