Lin Yu was montarily stunned when he heard Crow-Man's question.
This was a classic "pool filling" problem that mathematically belonged to elentary school level content.
As expected, Number Eight - the one with the 'Student' profession - wiped water from his face and spoke up.
"A pool filling problem? That's easy! We just need to set ti as variable X!" he said sowhat urgently.
Lin Yu shook his head.
No, the difficulty of this problem didn't lie in the mathematical aspect.
Before he could speak, his girlfriend beside him - the 'Doctor' whose ID was "April" - sighed helplessly: "But do you know this room's volu, the water inflow rate, and drainage speed?"
Number Eight froze montarily: "Ah, right... Examiner, what are those values? You can give hints, right? These should fall under hint paraters!" He looked at Crow-Man anxiously.
Crow-Man was also soaked, his feathers and mask dripping wet. He looked at Number Eight and said: "Caw caw, that's not within 'hint' paraters."
Iron Uncle shook his head at Number Eight. "What you're asking about is precisely this problem's difficulty - why would elentary-level math appear in the Death Ga... This is testing our estimation skills."
As he spoke, Iron Uncle had already moved to the room's edge, wading through water to walk its periter.
Number Eight and April looked puzzled: "What's this uncle suddenly doing?"
Before Lin Yu could explain, the young female Thief nad "Unforgotten" spoke: "I think he's using 'step asurents' to calculate the room's length and width... This uncle wears a hard hat and has the 'Craftsman' profession, so he should be skilled at this."
As Unforgotten spoke, Lin Yu nodded slightly.
While the uncle asured the room, Lin Yu wasn't idle either - he approached Crow-Man.
"May I ask whether the final answer needs minute or second precision - this should be within hint paraters, right?" Lin Yu asked with a smile.
Crow-Man glanced at Lin Yu, shook off so water, and replied:
"Caw caw, let think... alright, your answer's margin of error should be within five minutes."
Everyone breathed a sigh of relief at this.
A five-minute margin!
This ant the estimation didn't need extre precision.
Soon, Iron Uncle completed his circuit and returned.
"By my estimate, this room is about 9 ters long and 6 ters wide... As for ceiling height..." He reached toward the ceiling: "Judging from this, about 3 ters."
Number Eight imdiately blurted out: "Then I know! This classroom's 'volu' should be about 162 cubic ters!" He continued eagerly: "Now we just need the drainage and inflow speeds to calculate!"
As Number Eight spoke, Iron Uncle and April nodded, seemingly considering how to asure the water flow rates.
"If each outlet's speed is consistent, we could catch all water from one outlet in a container, then calculate each outlet's flow rate based on filling ti, and with ten outlets total..." April proposed first.
But Unforgotten interrupted: "No need for such trouble. Although five-minute error is allowed, the more estimates we make, the greater final error accumulates..."
She looked at Iron Uncle: "Uncle, just one question - are you sure the room height is 3 ters? Within 10cm error?"
Iron Uncle nodded confidently: "Though height is harder to asure, based on my experience, the proportion suggests three ters! After so many construction years, my eyes are rulers!"
Unforgotten pulled out her utility knife.
"This standard utility knife is 15cm long," she said, placing it vertically against the wall with the tip touching water and blade snug in the corner. "We just need to ti how long until water subrges it completely... then multiply by 20 for total estimated ti."
She began counting: "1, 2, 3..."
Iron Uncle imdiately understood.
"Transforming the problem into water rise speed is brilliant... I have this 'pocket watch' item I obtained - let's use it for precise timing!"
He joined by the wall, taking out a pocket watch to ti properly.
April and Number Eight also grasped Unforgotten's thod, showing admiration.
"So that's how... this way we can estimate fairly accurately," April murmured. "I overlooked this approach."
Number Eight pouted: "Thought it was a math problem, turns out it's a brain teaser letting this 'Thief' show off."
April jabbed his waist disapprovingly: "Watch your words! Stop saving face with thoughtless comnts!" Her tone carried displeasure.
Chastised, Number Eight awkwardly rubbed his nose and squatted down.
"Eye-level observation might be more accurate. I'll help watch when the water passes the mark."
Observing the group timing the water rise, Lin Yu instead felt sothing was off.
As "Iron Uncle" initially said, simple elentary math wouldn't appear in the Death Ga.
At first they thought the difficulty was "estimating all paraters."
But after Unforgotten simplified everything to just "water level" plus Crow-Man's allowed "five-minute" margin...
This problem seed too easy!
But what if viewed differently?
Like Number Eight said, if this wasn't logic/math but a "brain teaser"?
Brain teasers' hallmark is their "traps."
Moreover, Crow-Man clearly wasn't so chanical NPC reciting rules - it possessed high intelligence and independent will.
It could "judge" which questions to answer between his and Number Eight's.
Yet...
Crow-Man's earlier reply made Lin Yu sense sothing odd in its tone.
"Let think", "then", "alright" - three uncertain, imprecise phrases in one "hint" answer about "answer rules."
Crow-Man didn't seem to care about the "error margin," just casually saying five minutes!
In fact, Crow-Man not stating the "margin" initially already struck Lin Yu as strange.
With these thoughts, Lin Yu approached Crow-Man again.
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