constint MAXN = 5e5 + 5; usingnamespacestd;intn,a [MAXN]; intL [MAXN],R [MAXN]; //R [i]: 从i往前数第 a [i] 个 =a [i] 的位置（含i） // L [i]: 从i往前数第 a [i]+ 1个 =a [i] 的位置（含i） // 如果没有，都是- 1vector< int> pos[MAXN]; ...

AtCoder （ABC 445）于2月14日20:00进行。2月16日 19:00清北OI金牌教研团进行了本次比赛的直播讲解。以下为本次比赛解题报告： ...

而原本始终保持领先优势的OpenAI，最终屈居第二。 在刚刚落幕的AtCoder世界巡回总决赛上，12名决赛选手两天时间里展开角逐。 结果过程还挺紧张刺激，尤其前两名的争夺上。 OpenAI 在大部分比赛中都排名第一，本以为就这样了。人类开始反超，结果还剩1小时20 ...

A human programmer won a coding competition in Tokyo. An OpenAI tool took second place. Sam Altman and OpenAI congratulated the winner on X. "I'm trying to give 100% of what I have and try to stay ...

At the 2025 AtCoder World Tour Finals’ Heuristic Challenge held in Tokyo, renowned coder Przemysław Dębiak — widely recognized in the programming world as “Psyho” and a former member of the OpenAI ...

“人类暂时获胜了!”前OpenAI员工、波兰程序员Przemysław Dębiak在东京举办的AtCoder世界巡回赛2025启发式竞赛中，以微弱优势击败OpenAI定制模型后，在社交媒体上写下了这句既振奋又充满危机感的宣言。这场持续10小时的编程马拉松让他“精疲力尽，几乎虚脱”，却 ...

What happens when a machine almost outsmarts the world’s best coders? At the 2025 AtCoder World Finals, OpenAI’s secret internal AI model came astonishingly close to claiming victory in one of the ...

In a surprising turn, Polish programmer Przemysław Dębiak, known as "Psyho," triumphed over OpenAI's coding tool at the AtCoder World Tour Finals 2025. OpenAI CEO Sam Altman lauded Dębiak's victory, ...

AI hasn't yet killed the coding star. On Wednesday, a programmer from Poland, Przemysław Dębiak, beat an OpenAI tool at the AtCoder World Tour Finals 2025 Heuristic Contest in Tokyo, which is ...