Submission #1003865


Source Code Expand

def dfs(z,c)
	f=G[c].size==2?1:0
	r=[0,c]
	G[c].each{|e|
		next if e==z
		t=dfs(c,e)
		r=[r,[t[0]+f,t[1]]].max
	}
	r
end
N=gets.to_i
G=N.times.map{[]}
(N-1).times{
	a,b=gets.split.map(&:to_i)
	G[a-1]<<b-1
	G[b-1]<<a-1
}
p dfs(-1,dfs(-1,0)[1])[0]+G.count{|e|e.size==1}

Submission Info

Submission Time
Task K - Problem on Tree
User leafmoon
Language Ruby (2.3.3)
Score 100
Code Size 284 Byte
Status AC
Exec Time 436 ms
Memory 12412 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 100 / 100
Status
AC × 2
AC × 41
Set Name Test Cases
Sample sample_01.txt, sample_02.txt
All sample_01.txt, sample_02.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask1_13.txt, subtask1_14.txt, subtask1_15.txt, subtask1_16.txt, subtask1_17.txt, subtask1_18.txt, subtask1_19.txt, subtask1_20.txt, subtask1_21.txt, subtask1_22.txt, subtask1_23.txt, subtask1_24.txt, subtask1_25.txt, subtask1_26.txt, subtask1_27.txt, subtask1_28.txt, subtask1_29.txt, subtask1_30.txt, subtask1_31.txt, subtask1_32.txt, subtask1_33.txt, subtask1_34.txt, subtask1_35.txt, subtask1_36.txt, subtask1_37.txt, subtask1_38.txt, subtask1_39.txt
Case Name Status Exec Time Memory
sample_01.txt AC 11 ms 1788 KB
sample_02.txt AC 11 ms 1788 KB
subtask1_01.txt AC 320 ms 10876 KB
subtask1_02.txt AC 281 ms 10236 KB
subtask1_03.txt AC 115 ms 4604 KB
subtask1_04.txt AC 144 ms 6652 KB
subtask1_05.txt AC 176 ms 6652 KB
subtask1_06.txt AC 28 ms 2428 KB
subtask1_07.txt AC 385 ms 11644 KB
subtask1_08.txt AC 114 ms 4732 KB
subtask1_09.txt AC 270 ms 10620 KB
subtask1_10.txt AC 315 ms 10620 KB
subtask1_11.txt AC 146 ms 6524 KB
subtask1_12.txt AC 64 ms 3324 KB
subtask1_13.txt AC 40 ms 2940 KB
subtask1_14.txt AC 43 ms 3068 KB
subtask1_15.txt AC 412 ms 12156 KB
subtask1_16.txt AC 402 ms 12156 KB
subtask1_17.txt AC 415 ms 12028 KB
subtask1_18.txt AC 418 ms 12156 KB
subtask1_19.txt AC 429 ms 12284 KB
subtask1_20.txt AC 384 ms 11516 KB
subtask1_21.txt AC 398 ms 12028 KB
subtask1_22.txt AC 410 ms 12028 KB
subtask1_23.txt AC 402 ms 12156 KB
subtask1_24.txt AC 404 ms 12028 KB
subtask1_25.txt AC 383 ms 11516 KB
subtask1_26.txt AC 428 ms 12028 KB
subtask1_27.txt AC 427 ms 12284 KB
subtask1_28.txt AC 387 ms 11516 KB
subtask1_29.txt AC 429 ms 12284 KB
subtask1_30.txt AC 436 ms 12156 KB
subtask1_31.txt AC 416 ms 12412 KB
subtask1_32.txt AC 414 ms 12156 KB
subtask1_33.txt AC 413 ms 12156 KB
subtask1_34.txt AC 426 ms 12156 KB
subtask1_35.txt AC 415 ms 12028 KB
subtask1_36.txt AC 417 ms 12284 KB
subtask1_37.txt AC 394 ms 12284 KB
subtask1_38.txt AC 417 ms 12156 KB
subtask1_39.txt AC 389 ms 11516 KB