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【日记】2023.09

发布时间 2023-09-03 21:08:00作者: SoyTony

2023.09.01

After Hours - The Weeknd

Thought I almost died in my dream again (Baby, almost died)

Fightin' for my life, I couldn't breathe again

I'm fallin' into new (Oh, oh)

Without you goin' smooth (Fallin' in)

'Cause my heart belongs to you

I'll risk it all for you

I won't just leave

This time, I'll never leave

I wanna share babies

Protection, we won't need

Your body next to me

Is just a memory

I'm fallin' in too deep, oh

Without you, I can’t sleep

Insomnia relieve, oh

Talk to me, without you, I can't breathe

My darkest hours

Girl, I felt so alone inside of this crowded room

Different girls on the floor, distractin' my thoughts of you

I turned into the man I used to be, to be

Put myself to sleep

Just so I can get closer to you inside my dreams

Didn't wanna wake up 'less you were beside me

I just wanted to call you and say, and say

Oh, baby

Where are you now when I need you most?

I'd give it all just to hold you close

Sorry that I broke your heart, your heart

Never comin' through

I was running away from facin' reality

Wastin' all of my time on living my fantasies

Spendin' money to compensate, compensate

'Cause I want you, baby

I'll be livin' in Heaven when I'm inside of you

It was definitely a blessing, wakin' beside you

I'll never let you down again, again

Oh, baby

Where are you now when I need you most?

I'd give it all just to hold you close

Sorry that I broke your heart, your heart

I said, baby

I'll treat you better than I did before

I'll hold you down and not let you go

This time, I won't break your heart, your heart, yeah

I know it's all my fault

Made you put down your guard

I know I made you fall

I said you were wrong for me

I lied to you, I lied to you, I lied to you (To you)

Can't hide the truth, I stayed with her in spite of you

You did some things that you regret, still right for you

'Cause this house is not a home

Without my baby

Where are you now when I need you most?

I gave it all just to hold you close

Sorry that I broke your heart, your heart

And I said, baby

I'll treat you better than I did before

I'll hold you down and not let you go

This time, I won't break your heart, your heart, no

昨天返校，因为是 8 月所以内容写在今天。

换了新机房，电脑键位有点诡异，堪比成都七中。退格奇小无比，回车奇大无比。

电脑好像还没完全装好，只有 Windows10+Dev-C++，到机房先安了 VSCode。

学习笛卡尔树，题库 T1 期望弄了一堆积分，鉴定为我是傻子。

APJifengc 开始板刷 AtCoder 紫题，牛牛牛！

宿舍 12 人间也还好，秋天没有夏天那么热，很快就睡着了。

早晨跑操不足的为啥跑了一圈队伍就跑路了，候操阅读高等数学，学会了 \(\int x\cos x \mathrm{d}x\)。

上午模拟赛，做了俩小时 T3 结果最后一步挂了，喜提低于暴力分数。T1 不会！！！去年 T4 Sakura 提出的反悔贪心做法好像是对的，但是我去年没学闵可夫斯基和！

身败名裂。

高一开学就军训，有点迅速。

2023.09.02

Killer Queen - Queen

She keeps her Moet et Chandon In her pretty cabinet

'let them eat cake' she says Just like Marie Antoinette

A built-in remedy

For Kruschev and Kennedy

At anytime an invitation

You can't decline

Caviar and cigarettes

Well versed in etiquette

Extraordinarily nice

She's a Killer Queen

Gunpowder, gelatine

Dynamite with a laserbeam

Guaranteed to blow your mind

Anytime

Ooh, recommended at the price

Insatiable an appetite

Wanna try?

To avoid complications

She never kept the same address

In conversation

She spoke just like a baroness

Met a man from China

Went down to Geisha Minah

(Killer, killer, she's a killer Queen)

Then again incidentally

If you're that way inclined

Perfume came naturally from Paris (naturally)

For cars she couldn't care less

Fastidiousand precise

She's a Killer Queen

Gunpowder, gelatine

Dynamite with a laser beam

Guaranteed to blow your mind

Anytime

Drop of a hat she's as willing as

Playful as a pussy cat

Then momentarily out of action

Temporarily out of gas

To absolutely drive you wild, wild...

She's all out to get you

She's a Killer Queen

Gunpowder, gelatine

Dynamite with a laser beam

Guaranteed to blow your mind

Anytime

Ooh, recommended at the price

Insatiable an appetite

Wanna try ?

You wanna try...

白天写完了猪国杀，然后使用 OneDrive 造成电脑死机，被迫重装虚拟机。

晚上吃完饭把文化课资料拿回来了。

打了 ABC，A 到 E 比较简单，G 建圆方树即可，Ex 容斥然后应该 \(\exp\)，F 不是很好写，所以就没写。

成功上分。

2023.09.03

Sunflower - Post Malone/Swae Lee

Ayy, ayy, ayy, ayy (ooh)

Ooh, ooh, ooh, ohh (ooh)

Ayy, ayy

Ooh, ooh, ooh, ohh

Needless to say, I keep a check

She was all bad-bad, nevertheless (yeah)

Callin' it quits now, baby, I'm a wreck (wreck)

Crash at my place, baby, you're a wreck (wreck)

Needless to say, I'm keepin' a check

She was all bad-bad, nevertheless

Callin' it quits now, baby, I'm a wreck

Crash at my place, baby, you're a wreck

Thinkin' in a bad way, losin' your grip

Screamin' at my face, baby don't trip

Someone took a big L, don't know how that felt

Lookin' at you sideways, party on tilt

Ooh-ooh, some things you just can't refuse

She wanna ride me like a cruise

And I'm not tryna lose

Then you're left in the dust

Unless I stuck by ya

You're a sunflower

I think your love would be too much

Or you'll be left in the dust

Unless I stuck by ya

You're the sunflower

You're the sunflower

Every time I'm leavin' on you

You don't make it easy, no, no

Wish I could be there for you

Give me a reason to go

Every time I'm walkin' out

I can hear you tellin' me to turn around

Fightin' for my trust and you won't back down

Even if we gotta risk it all right now, oh

I know you're scared of the unknown (-known)

You don't wanna be alone (alone)

I know I always come and go (and go)

But it's out of my control

And you'll be left in the dust

Unless I stuck by ya

You're a sunflower

I think your love would be too much

Or you'll be left in the dust

Unless I stuck by ya

You're the sunflower

You're the sunflower

Yeah

上午网断了，只能学习文化课，重插网线就好了，继续学习文化课。

看了下昨天 Ex 题解，省略前后部分只考虑统计 Alice 一定正确的情况，设有 \(k\) 个环，环长排序后是 \(l_i\)，那么对于每个 \(l\)，答案是：

\[\dbinom{n}{l_1,l_2,\cdots,l_k}\dfrac{1}{k!}\prod_{i=1}^k (l_i-1)!\times n!\prod_{i=1}^k \dfrac{1}{l_i} \]

也就是给环分配编号的方案数乘上圆排列数，再乘上赋权值 \(Q\) 赋到最小与最小对应的方案数，化简以后是：

\[(n!)^2 \dfrac{1}{k!}\prod_{i=1}^k \dfrac{1}{l_i^2} \]

设 \(F(x)=\sum_{i\ge 1} \frac{1}{i^2} x^i\)，那么结果是 \((n!)^2[x^n]\exp(f(x))\)。

最终答案是 \((n!)^2-2(n!)^2[x^n]\exp(F(x))+n!\)。