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 444）于2月7日20:00进行。2月8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： intmain {string str;cin >> str; if( str[ 0] == str[ 1] && str[ 1] == str[ 2]) puts ( "Yes"); elseputs ( "No"); return0;} ...

“人类还是赢了（至少目前是这样！） ”—— 这是普雷米斯劳·德比亚克（Przemysław Dębiak）在与 OpenAI 模型鏖战编程 10 小时之后留下的感言。他刚刚赢得了 2025 年 AtCoder 世界总决赛启发式算法竞赛的冠军。 普雷米斯劳·德比亚克（右）在赢得 2025 年 AtCoder 世界 ...

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 ...

“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 ...

A Polish programmer running on fumes recently accomplished what may soon become impossible: beating an advanced AI model from OpenAI in a head-to-head coding competition. The 10-hour marathon left him ...

Amid the ongoing debate on AI vs humans at work, a new instance has been added favouring humans. A Polish programmer, Przemysaw Debiak aka Psyho, triumphed over an advanced AI model from OpenAI in a ...

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, ...