結果
問題 | No.1640 簡単な色塗り |
ユーザー | harurun |
提出日時 | 2021-06-16 23:57:26 |
言語 | Python3 (3.12.2 + numpy 1.26.4 + scipy 1.12.0) |
結果 |
AC
|
実行時間 | 947 ms / 2,000 ms |
コード長 | 4,172 bytes |
コンパイル時間 | 84 ms |
コンパイル使用メモリ | 13,184 KB |
実行使用メモリ | 71,548 KB |
最終ジャッジ日時 | 2024-06-29 14:42:45 |
合計ジャッジ時間 | 25,003 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 27 ms
11,520 KB |
testcase_01 | AC | 28 ms
11,392 KB |
testcase_02 | AC | 29 ms
11,264 KB |
testcase_03 | AC | 27 ms
11,392 KB |
testcase_04 | AC | 477 ms
66,732 KB |
testcase_05 | AC | 560 ms
71,548 KB |
testcase_06 | AC | 28 ms
11,264 KB |
testcase_07 | AC | 27 ms
11,392 KB |
testcase_08 | AC | 26 ms
11,392 KB |
testcase_09 | AC | 27 ms
11,264 KB |
testcase_10 | AC | 436 ms
46,652 KB |
testcase_11 | AC | 368 ms
40,736 KB |
testcase_12 | AC | 285 ms
37,452 KB |
testcase_13 | AC | 800 ms
64,868 KB |
testcase_14 | AC | 798 ms
64,668 KB |
testcase_15 | AC | 213 ms
30,000 KB |
testcase_16 | AC | 258 ms
34,108 KB |
testcase_17 | AC | 618 ms
56,652 KB |
testcase_18 | AC | 65 ms
15,360 KB |
testcase_19 | AC | 303 ms
36,772 KB |
testcase_20 | AC | 440 ms
45,540 KB |
testcase_21 | AC | 369 ms
39,416 KB |
testcase_22 | AC | 52 ms
13,952 KB |
testcase_23 | AC | 484 ms
48,220 KB |
testcase_24 | AC | 124 ms
21,628 KB |
testcase_25 | AC | 298 ms
37,624 KB |
testcase_26 | AC | 544 ms
51,984 KB |
testcase_27 | AC | 209 ms
28,932 KB |
testcase_28 | AC | 716 ms
62,196 KB |
testcase_29 | AC | 495 ms
51,392 KB |
testcase_30 | AC | 102 ms
19,968 KB |
testcase_31 | AC | 863 ms
70,112 KB |
testcase_32 | AC | 725 ms
62,848 KB |
testcase_33 | AC | 412 ms
46,976 KB |
testcase_34 | AC | 444 ms
55,184 KB |
testcase_35 | AC | 315 ms
46,068 KB |
testcase_36 | AC | 91 ms
19,952 KB |
testcase_37 | AC | 108 ms
23,248 KB |
testcase_38 | AC | 538 ms
65,048 KB |
testcase_39 | AC | 250 ms
34,160 KB |
testcase_40 | AC | 219 ms
34,640 KB |
testcase_41 | AC | 542 ms
56,048 KB |
testcase_42 | AC | 319 ms
38,064 KB |
testcase_43 | AC | 261 ms
38,864 KB |
testcase_44 | AC | 344 ms
39,012 KB |
testcase_45 | AC | 184 ms
31,496 KB |
testcase_46 | AC | 94 ms
20,992 KB |
testcase_47 | AC | 75 ms
17,536 KB |
testcase_48 | AC | 534 ms
66,016 KB |
testcase_49 | AC | 48 ms
14,080 KB |
testcase_50 | AC | 26 ms
11,392 KB |
testcase_51 | AC | 27 ms
11,392 KB |
testcase_52 | AC | 947 ms
71,292 KB |
testcase_53 | AC | 929 ms
71,296 KB |
07_evil_01.txt | RE | - |
07_evil_02.txt | RE | - |
ソースコード
#assert class INPUT: def __init__(self): self._l=open(0).read().split() self._length=len(self._l) self._index=0 return def stream(self,k=1,f=int,f2=False): assert(-1<k) if self._length==self._index or self._length-self._index<k: raise Exception("There is no input!") elif f!=str: if k==0: ret=list(map(f,self._l[self._index:])) self._index=self._length return ret if k==1 and not f2: ret=f(self._l[self._index]) self._index+=1 return ret if k==1 and f2: ret=[f(self._l[self._index])] self._index+=1 return ret ret=[] for _ in [0]*k: ret.append(f(self._l[self._index])) self._index+=1 return ret else: if k==0: ret=list(self._l[self._index:]) self._index=self._length return ret if k==1 and not f2: ret=self._l[self._index] self._index+=1 return ret if k==1 and f2: ret=[self._l[self._index]] self._index+=1 return ret ret=[] for _ in [0]*k: ret.append(self._l[self._index]) self._index+=1 return ret pin=INPUT().stream """ pin(number[default:1],f[default:int],f2[default:False]) if number==0 -> return left all listを変数で受け取るとき、必ずlistをTrueにすること。 """ class dsu: def __init__(self,n): assert n>0,"n must be Natural" self.n=n self.parents=[-1]*n return def find(self,x): assert x<self.n,"warning!! this is 0 index" if self.parents[x]<0: return x self.parents[x]=self.find(self.parents[x]) return self.parents[x] def merge(self,x,y): assert x<self.n and y<self.n,"warning!! this is 0 index" x=self.find(x) y=self.find(y) if x==y: return if self.parents[x]>self.parents[y]: x,y=y,x self.parents[x]+=self.parents[y] self.parents[y]=x return def size(self,x): assert x<self.n,"warning!! this is 0 index" return -self.parents[self.find(x)] def same(self,x,y): assert x<self.n and y<self.n,"warning!! this is 0 index" return self.find(x)==self.find(y) def leader(self,x): assert x<self.n,"warning!! this is 0 index" if self.parents[x]<0: return x self.parents[x]=self.leader(self.parents[x]) return self.parents[x] def groups(self): ld=[self.leader(i) for i in range(self.n)] res=[[] for _ in range(self.n)] for i in range(self.n): res[ld[i]].append(i) return list(filter(lambda a:a !=[],res)) from collections import deque def main(): N=pin(1) assert(1<=N<=10**5) uf=dsu(N) to=[[]for _ in[0]*N] for i in range(N): A,B=pin(2) assert(1<=A<=N) assert(1<=B<=N) uf.merge(A-1,B-1) to[A-1].append([B-1,i]) if A!=B: to[B-1].append([A-1,i]) is_input=False try: pin(0) is_input=True except: pass if is_input: raise Exception seen=[0]*N ans=[-1]*N gr=uf.groups() for linked in gr: is_cycle=True root=-1 cycle_cnt=0 for point in linked: link_size=len(to[point]) for k in range(link_size): if to[point][k][0]==point: cycle_cnt+=1 is_cycle=False ans[to[point][k][1]]=point+1 root=point if cycle_cnt>1: print("No") return if is_cycle: next_point=-1 que=deque() que.append([linked[0],-1]) while que: q=que.pop() for j in to[q[0]]: if j[1]==q[1]: continue if seen[j[0]]: root=j[0] next_point=q[0] ans[j[1]]=root+1 que.clear() break que.append([j[0],j[1]]) seen[q[0]]=1 if next_point==-1: print("No") return dq=deque() dq.append(root) while dq: q=dq.pop() for j in to[q]: if ans[j[1]]==-1: ans[j[1]]=j[0]+1 dq.append(j[0]) for i in ans: if i==-1: print("No") return print("Yes") for i in ans: print(i) return main()