結果
問題 | No.1640 簡単な色塗り |
ユーザー | harurun |
提出日時 | 2021-06-12 20:15:35 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 644 ms / 2,000 ms |
コード長 | 3,995 bytes |
コンパイル時間 | 430 ms |
コンパイル使用メモリ | 82,660 KB |
実行使用メモリ | 127,084 KB |
最終ジャッジ日時 | 2024-06-29 14:37:55 |
合計ジャッジ時間 | 27,563 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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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 | 44 ms
55,156 KB |
testcase_01 | AC | 42 ms
54,880 KB |
testcase_02 | AC | 44 ms
55,520 KB |
testcase_03 | AC | 43 ms
55,924 KB |
testcase_04 | AC | 212 ms
123,636 KB |
testcase_05 | AC | 233 ms
122,036 KB |
testcase_06 | AC | 43 ms
55,320 KB |
testcase_07 | AC | 44 ms
56,184 KB |
testcase_08 | AC | 44 ms
56,092 KB |
testcase_09 | AC | 43 ms
55,928 KB |
testcase_10 | AC | 409 ms
105,788 KB |
testcase_11 | AC | 351 ms
98,524 KB |
testcase_12 | AC | 336 ms
99,008 KB |
testcase_13 | AC | 546 ms
118,384 KB |
testcase_14 | AC | 554 ms
118,936 KB |
testcase_15 | AC | 269 ms
92,364 KB |
testcase_16 | AC | 306 ms
94,708 KB |
testcase_17 | AC | 483 ms
113,204 KB |
testcase_18 | AC | 160 ms
80,564 KB |
testcase_19 | AC | 324 ms
97,284 KB |
testcase_20 | AC | 377 ms
102,408 KB |
testcase_21 | AC | 342 ms
99,236 KB |
testcase_22 | AC | 135 ms
79,440 KB |
testcase_23 | AC | 416 ms
106,276 KB |
testcase_24 | AC | 215 ms
85,720 KB |
testcase_25 | AC | 329 ms
97,232 KB |
testcase_26 | AC | 434 ms
106,924 KB |
testcase_27 | AC | 272 ms
91,332 KB |
testcase_28 | AC | 534 ms
117,416 KB |
testcase_29 | AC | 418 ms
108,820 KB |
testcase_30 | AC | 205 ms
83,892 KB |
testcase_31 | AC | 559 ms
122,740 KB |
testcase_32 | AC | 513 ms
118,924 KB |
testcase_33 | AC | 369 ms
103,316 KB |
testcase_34 | AC | 383 ms
111,116 KB |
testcase_35 | AC | 318 ms
102,928 KB |
testcase_36 | AC | 201 ms
83,972 KB |
testcase_37 | AC | 199 ms
85,784 KB |
testcase_38 | AC | 438 ms
117,640 KB |
testcase_39 | AC | 309 ms
93,980 KB |
testcase_40 | AC | 290 ms
94,496 KB |
testcase_41 | AC | 442 ms
112,668 KB |
testcase_42 | AC | 336 ms
96,704 KB |
testcase_43 | AC | 311 ms
98,612 KB |
testcase_44 | AC | 326 ms
97,772 KB |
testcase_45 | AC | 272 ms
93,848 KB |
testcase_46 | AC | 199 ms
84,512 KB |
testcase_47 | AC | 183 ms
82,408 KB |
testcase_48 | AC | 449 ms
119,800 KB |
testcase_49 | AC | 137 ms
79,064 KB |
testcase_50 | AC | 43 ms
54,860 KB |
testcase_51 | AC | 43 ms
54,432 KB |
testcase_52 | AC | 616 ms
126,324 KB |
testcase_53 | AC | 644 ms
127,084 KB |
07_evil_01.txt | AC | 1,059 ms
172,580 KB |
07_evil_02.txt | AC | 1,481 ms
226,228 KB |
ソースコード
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) uf=dsu(N) to=[[]for _ in[0]*N] for i in range(N): A,B=pin(2) uf.merge(A-1,B-1) to[A-1].append([B-1,i]) if A!=B: to[B-1].append([A-1,i]) 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()