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寫在NOIP2018後

退役學了一週文化課,感覺還行吧

在週四就有學弟跟我說用我的原始碼測329,當時還是出乎意料的.

本來期望是100+50+55+100+50+44=399,結果測得是100+55+50+100+20+4=329

一開始估摸著Day1寫炸了結果想不到是把握很大的Day2,今天特意檢查D2T2,T3程式碼發現都是傻逼錯誤

D2T2考場上用計數原理推出來f[i]=f[i-1]*4-f[i-1]/2*2

結果寫了個這個狗東西:

    for(ri i=3;i<=m;i++)f[i]=(f[i]*4%P-f[i-1])%P+P;

直接心態崩了

D2T3暴力就是一個簡單的樹形DP,沒清空陣列就從44變成4

70分全都敗給了非智力因素

現在心情不太好,本來399還是有點搞頭的,現在退役欽定了

想來還是自己太菜了,D1後面兩道題都是有能力A掉的,也許是題目做得太少總是想偏想歪

終究還是自己的能力不夠

文化課已經考了班上兩次倒數,雖然之前也經常考競賽班的倒數但滋味還是不怎麼好受;

在新班認識的同學也多了兩三個,還是很感謝他們還有一直陪伴著我的人

不管怎麼說退役是註定的了,突然想到一首小學還是初中學過的詩:




Two roads diverged in a yellow wood,    黃色的樹林裡分出兩條路

And sorry I could not travel both    可惜我不能同時去涉足

And be one traveler, long I stood    我在那路口久久佇立

And looked down one as far as I could    我向著一條路極目望去

To where it bent in the undergrowth;     直到它消失在叢林深處




Then took the other, as just as fair,    但我卻選擇了另外一條路
  
And having perhaps the better claim,   它荒草萋萋,十分幽寂

Because it was grassy and wanted wear;   顯得更誘人,更美麗 

Though as for that the passing there    雖然在這兩條小路上

Had worn them really about the same,    都很少留下旅人的足跡




And both that morning equally lay    雖然那天清晨落葉滿地

In leaves no step had trodden black.    兩條路都未經腳印汙染

Oh, I kept the first for another day!    呵,留下一條路等改日再見

Yet knowing how way leads on to way,    但我知道路徑延綿無盡頭

I doubted if I should ever come back.    恐怕我難以再回返




I shall be telling this with a sigh    也許多少年後在某一個地方

Somewhere ages and ages hence:    我將輕聲嘆息把往事回顧

Two roads diverged in a wood, and I—    一片森林裡分出兩條路

I took the one less traveled by,    而我卻選擇了人跡更少的一條  
 
And that has made all the difference.     從此決定了我一生的道路




祝各位OIer好運