Hi there, ↵
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I need help in understanding the editorial of this [Problem](https://img.atcoder.jp/abc123/editorial.pdfcontests/abc123/tasks/abc123_d)↵
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The [Editorial](https://img.atcoder.jp/abc123/editorial.pdf) written in Japanese mentioned 4 methods to solve the problem which I translated using google translator and I managed to understand the first two methods. The last method mention **Binary search**, I am interested in a the **binary search** solution. ↵
↵
Anyone can shed some light on this would be really helpful.
↵
I need help in understanding the editorial of this [Problem](https://
↵
The [Editorial](https://img.atcoder.jp/abc123/editorial.pdf) written in Japanese mentioned 4 methods to solve the problem which I translated using google translator and I managed to understand the first two methods. The last method mention **Binary search**, I am interested in a the **binary search** solution. ↵
↵
Anyone can shed some light on this would be really helpful.
