QOJ.ac
QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#170311 | #2905. Tree Hopping | acm202226010311 | AC ✓ | 78ms | 33928kb | C++14 | 1.7kb | 2023-09-09 14:59:11 | 2023-09-09 14:59:12 |
Judging History
answer
#include<iostream>
#include<cstring>
using namespace std;
int e[200005],h[100005],ne[200005],idex;
int dist[100005];
int fa[100005][31], cost[100005][31];
void add(int a,int b)
{
e[idex]=b;
ne[idex]=h[a];
h[a]=idex++;
}
void dfs(int v,int f)
{ //cout<<1<<endl;
fa[v][0]=f;
dist[v]=dist[f]+1;
for(int i=1;i<31;i++)
{
fa[v][i]=fa[fa[v][i-1]][i-1];
cost[v][i]=cost[fa[v][i-1]][i-1]+cost[v][i-1];
}
for(int i=h[v];i!=-1;i=ne[i])
{
if(e[i]!=f)
{ //cost[e[i]][0]=1;
dfs(e[i],v);
}
}
}
int lca(int x,int y)
{ // cout<<1<<endl;
if(dist[x]>dist[y])
swap(x,y);
int tmp=dist[y]-dist[x];
int ans=0;
for(int j=0;tmp;j++,tmp>>=1)
if(tmp&1) y=fa[y][j];
//cout<<x<<" "<<y<<endl;
if(y==x)
{ //cout<<1<<endl;
ans=y;
return ans;
}
else
{
for (int k =30; k >= 0; k--) {
if (fa[x][k] != fa[y][k]) x = fa[x][k], y = fa[y][k];
}
return fa[x][0];
}
}
int main()
{
int t;
cin>>t;
while(t--)
{
idex=0;
int n;
cin>>n;
for(int i=0;i<=n;i++)
{
h[i]=-1;
dist[i]=0;
for(int j=0;j<31;j++)
fa[i][j]=0;
}
for(int i=1;i<n;i++)
{
int a,b;
cin>>a>>b;
add(a,b);
add(b,a);
}
dfs(1,0);
int a=0;
cin>>a;
int flag=0;
for(int i=1;i<n;i++)
{
int b;
cin>>b;
if(flag==1)
continue;
int lc=lca(a,b);
// cout<<lc<<" "<<dist[lc]<<" "<<dist[a]<<" "<<dist[b]<<endl;
if(dist[a]+dist[b]-2*dist[lc]>3)
{
flag=1;
}
a=b;
}
if(flag==1)
cout<<0<<endl;
else cout<<1<<endl;
}
}
詳細信息
Test #1:
score: 100
Accepted
time: 77ms
memory: 33284kb
input:
1 100000 82434 91867 26281 85594 55906 58160 77741 84042 9428 18333 12828 74753 77689 99092 38286 54810 20105 49007 46686 99681 2706 7961 3181 52536 220 10994 47988 73136 9692 62150 33736 95126 26464 42470 27856 35956 21730 25755 37051 37915 30853 92883 41489 72370 21569 85241 7003 70312 14566 64955...
output:
1
result:
ok single line: '1'
Test #2:
score: 0
Accepted
time: 70ms
memory: 30140kb
input:
1 100000 11303 71484 4529 70330 1552 87041 41453 92339 21465 71516 19667 39857 21959 58716 31932 84665 8053 50446 29022 90760 87296 95567 75516 96539 8038 35993 75926 88583 20508 49007 2834 31547 22687 29886 71794 83507 17697 42712 22396 95499 57654 59390 9926 59724 77735 84162 38056 56700 34646 852...
output:
1
result:
ok single line: '1'
Test #3:
score: 0
Accepted
time: 66ms
memory: 30192kb
input:
1 100000 50499 88655 47392 81287 36361 66187 45853 65264 4748 14073 5399 51911 60036 94465 35297 37198 75162 83826 63387 82046 1438 20159 7075 19977 68862 77569 14608 50627 26978 52577 74081 80136 13555 76986 18365 61979 20856 23260 97435 98359 57880 64546 59659 81110 37015 51355 29278 81962 31789 3...
output:
1
result:
ok single line: '1'
Test #4:
score: 0
Accepted
time: 71ms
memory: 30140kb
input:
1 100000 89954 94897 61146 74499 29706 97870 806 98329 37648 48068 21676 87460 38744 71966 18811 34570 21414 23704 50602 80814 49218 66891 80134 88526 39946 64804 73181 91743 18669 30527 21935 81884 42699 89451 16825 55365 1156 38267 1789 54324 70908 96541 71002 84415 34102 39357 56250 99915 8968 44...
output:
1
result:
ok single line: '1'
Test #5:
score: 0
Accepted
time: 65ms
memory: 30176kb
input:
1 100000 17760 53992 25523 60557 25449 60674 14039 64859 9258 25449 60568 80600 9906 81773 51671 90773 89625 95458 3449 30577 33800 58699 26021 51779 11102 92494 6568 74509 8470 16419 48838 70812 53907 56306 39122 98432 15872 32789 11452 75192 14345 63018 5332 76083 40289 44105 14011 94061 29750 895...
output:
1
result:
ok single line: '1'
Test #6:
score: 0
Accepted
time: 78ms
memory: 30140kb
input:
1 100000 38948 89798 14334 62806 5338 17015 25474 47123 17015 98459 26810 98892 18596 94533 59407 70032 39086 81778 38069 93264 41133 56898 2434 78685 76503 89798 46161 48839 66825 78111 29593 44371 23556 85793 18484 93045 37045 61644 5461 11365 16608 76538 42928 75813 209 51842 17702 43099 68727 93...
output:
1
result:
ok single line: '1'
Test #7:
score: 0
Accepted
time: 69ms
memory: 30184kb
input:
1 100000 7797 35286 7797 95507 7797 92408 7797 35660 7797 59959 7797 95191 7797 83597 7797 30917 7797 64024 4434 7797 7797 65782 7797 34833 7797 98901 7797 80759 7797 85843 7797 55166 7797 95661 7797 50297 7797 95487 7797 37600 7797 55163 7797 91951 7797 38090 7797 70838 7797 28406 7797 26529 7797 3...
output:
1
result:
ok single line: '1'
Test #8:
score: 0
Accepted
time: 53ms
memory: 30204kb
input:
1 100000 19721 95065 19721 20347 19721 23110 45011 99470 19721 67831 19721 53287 53343 99470 89489 99470 31896 99470 88964 99470 19721 69366 82976 99470 18893 19721 5527 99470 19721 55997 19182 19721 25536 99470 3368 99470 7813 99470 28864 99470 2061 99470 19721 22257 19721 89534 81524 99470 20939 9...
output:
1
result:
ok single line: '1'
Test #9:
score: 0
Accepted
time: 70ms
memory: 30268kb
input:
1 100000 32729 40509 40509 79197 47470 73945 14921 18709 40559 67429 24715 67429 47470 54744 15549 47470 67429 95832 43877 51827 67429 92426 14921 22354 51827 55019 37182 40509 47470 90854 6157 40509 14921 37969 20631 47470 31408 47470 14921 38212 51827 63998 24741 47470 67429 71462 47470 86837 5984...
output:
1
result:
ok single line: '1'
Test #10:
score: 0
Accepted
time: 69ms
memory: 30140kb
input:
1 100000 52560 64636 38628 52560 17386 92892 16746 58170 63832 85452 63832 95872 19381 44650 44650 49535 48621 91858 6850 79607 38910 63832 16746 26195 35342 51929 35006 72308 17386 66607 40507 52560 16746 72367 22092 44650 30442 44650 1363 16746 23982 79607 17386 44006 63832 76837 44650 87113 48621...
output:
1
result:
ok single line: '1'
Test #11:
score: 0
Accepted
time: 66ms
memory: 30136kb
input:
1 100000 798 89195 65428 78279 24948 47324 34121 61118 20027 76309 84098 97614 56927 69819 38987 47849 36658 45514 16991 54660 52047 94797 5009 33795 25819 42015 8304 9025 26430 30082 23835 32023 68743 70064 844 12390 27227 84584 4720 80337 56112 80751 83693 89700 20027 78996 53193 89210 8948 15826 ...
output:
1
result:
ok single line: '1'
Test #12:
score: 0
Accepted
time: 68ms
memory: 30272kb
input:
1 100000 44066 72554 12532 23378 3729 9804 3231 47201 47073 91280 22554 96781 44366 59860 22614 25868 95465 99232 7283 11743 28828 56324 18397 21828 62785 76261 57105 60629 4399 65381 4624 19215 33370 36554 31957 99455 5385 14037 37130 73195 1691 60670 43206 45484 25081 91280 65826 74951 52611 76889...
output:
1
result:
ok single line: '1'
Test #13:
score: 0
Accepted
time: 58ms
memory: 30260kb
input:
1 100000 1 99999 2 100000 3 99999 4 100000 5 99999 6 100000 7 99999 8 100000 9 99999 10 100000 11 99999 12 100000 13 99999 14 100000 15 99999 16 100000 17 99999 18 100000 19 99999 20 100000 21 99999 22 100000 23 99999 24 100000 25 99999 26 100000 27 99999 28 100000 29 99999 30 100000 31 99999 32 100...
output:
1
result:
ok single line: '1'
Test #14:
score: 0
Accepted
time: 43ms
memory: 30120kb
input:
1 100000 1 2 1 3 2 4 1 5 2 6 1 7 2 8 1 9 2 10 1 11 2 12 1 13 2 14 1 15 2 16 1 17 2 18 1 19 2 20 1 21 2 22 1 23 2 24 1 25 2 26 1 27 2 28 1 29 2 30 1 31 2 32 1 33 2 34 1 35 2 36 1 37 2 38 1 39 2 40 1 41 2 42 1 43 2 44 1 45 2 46 1 47 2 48 1 49 2 50 1 51 2 52 1 53 2 54 1 55 2 56 1 57 2 58 1 59 2 60 1 61...
output:
1
result:
ok single line: '1'
Test #15:
score: 0
Accepted
time: 68ms
memory: 32668kb
input:
1 100000 25293 94869 10022 68793 1389 92726 58206 68958 2071 23917 3191 89315 36504 57054 34359 85245 25085 63144 66742 70119 66119 81635 34210 91288 27700 37427 31003 71698 22042 66192 17272 68278 9299 14650 8986 12552 93129 98744 28882 77559 28891 30119 21711 55750 54122 81975 51886 68759 42365 92...
output:
0
result:
ok single line: '0'
Test #16:
score: 0
Accepted
time: 64ms
memory: 30284kb
input:
1 100000 50205 57834 54914 97194 72952 86838 27861 76617 31387 77783 16810 71916 42438 88429 28292 96268 24749 92279 96848 97972 8932 18218 41227 95959 59500 99420 69115 85468 7429 41243 4473 24476 7461 58840 93716 97696 1916 53141 69370 79136 31374 66915 60487 81019 51140 63534 53255 61878 3602 661...
output:
1
result:
ok single line: '1'
Test #17:
score: 0
Accepted
time: 72ms
memory: 30200kb
input:
1 100000 10002 92504 31473 42558 27112 74621 60493 89465 27641 82983 21568 57447 63322 85990 10391 86795 23475 32755 32055 47952 15574 57270 7636 58997 22018 29600 81261 94883 22998 43691 76173 96795 70781 90629 52887 99767 23155 35719 59131 91302 13216 43372 33997 93563 70642 80867 22801 24493 9755...
output:
1
result:
ok single line: '1'
Test #18:
score: 0
Accepted
time: 67ms
memory: 30192kb
input:
1 100000 9332 35259 77836 87537 23942 32579 25739 76497 80331 99369 94816 96307 20242 42099 34808 39789 33113 41854 19216 75011 44653 79667 4828 67739 60972 73494 37992 67740 23614 49849 11691 82618 16394 36015 458 21161 73262 86791 74834 95175 19835 54462 8006 28373 1124 78212 2770 48378 82726 9994...
output:
1
result:
ok single line: '1'
Test #19:
score: 0
Accepted
time: 66ms
memory: 30212kb
input:
1 100000 91621 93237 56496 84023 12678 17780 4939 63181 17780 83963 5932 34844 17342 70763 32621 36332 39786 64960 41057 43821 23373 49059 35640 39497 10164 95487 26347 84688 36787 92392 27921 47871 32151 89476 27796 79323 11330 65453 47050 83175 39987 86560 20301 63715 3205 12554 76823 83863 83566 ...
output:
1
result:
ok single line: '1'
Test #20:
score: 0
Accepted
time: 67ms
memory: 30208kb
input:
1 100000 38291 85663 9914 70145 48001 56367 33806 56719 40530 48001 26580 62222 14966 92438 34168 35860 46259 56336 36794 72849 22639 34479 1051 9296 39260 85663 1742 34495 43275 58439 36666 91295 67177 91478 85687 89076 59546 78465 7875 75421 15706 55736 3369 92422 32097 42684 19305 60696 56935 923...
output:
1
result:
ok single line: '1'
Test #21:
score: 0
Accepted
time: 73ms
memory: 30260kb
input:
1 100000 38971 93416 9226 93416 22113 93416 31194 93416 92627 93416 7106 93416 93416 95225 22760 93416 1063 93416 12969 93416 80261 93416 93416 99593 16850 93416 35819 93416 66563 93416 54862 93416 57169 93416 34817 93416 60497 93416 13891 93416 80269 93416 48955 93416 14198 93416 70134 93416 59771 ...
output:
1
result:
ok single line: '1'
Test #22:
score: 0
Accepted
time: 70ms
memory: 30256kb
input:
1 100000 2354 27092 27092 67369 13923 27092 42165 90365 27092 52904 27092 34233 47738 90365 78327 90365 90365 91280 33611 90365 27092 35953 80700 90365 8069 27092 36892 90365 27092 90168 27092 33135 3005 90365 88375 90365 77402 90365 434 90365 38224 90365 27092 55431 1456 27092 50135 90365 22379 903...
output:
1
result:
ok single line: '1'
Test #23:
score: 0
Accepted
time: 64ms
memory: 30200kb
input:
1 100000 5265 17341 5265 56045 496 21643 26484 69016 16839 28871 16839 79781 21643 25661 21643 53429 16839 49697 2003 7145 16839 97239 69016 78113 2003 62670 5265 56740 21643 92645 5265 61255 50827 69016 21643 24229 21643 89959 69016 84181 2003 79923 21643 43043 7330 16839 21643 96020 16839 91196 52...
output:
1
result:
ok single line: '1'
Test #24:
score: 0
Accepted
time: 70ms
memory: 30196kb
input:
1 100000 10304 43215 10304 93394 30448 33451 18015 89885 22363 56611 56611 97015 39535 59758 57788 59758 61359 88426 9120 13565 56611 80671 18015 49699 35947 46370 34807 85262 3232 33451 10304 66020 18015 27347 36072 59758 39231 59758 18015 23271 9120 71111 33451 33807 36714 56611 1277 59758 75014 8...
output:
1
result:
ok single line: '1'
Test #25:
score: 0
Accepted
time: 75ms
memory: 30140kb
input:
1 100000 18569 94853 12294 29465 25783 64536 27350 39359 76660 79928 49183 92335 68841 77260 44573 61219 76911 93587 22187 28512 38363 52104 11784 33171 45225 74320 24733 58620 43423 81441 45212 62458 8960 86681 18119 89304 44032 72734 3113 44662 50644 82711 30392 57084 7249 79928 44825 56035 60202 ...
output:
1
result:
ok single line: '1'
Test #26:
score: 0
Accepted
time: 73ms
memory: 30184kb
input:
1 100000 1571 90468 91384 99150 32516 78851 42225 43818 25621 72220 21301 21374 33425 63678 23674 45780 28518 69993 5334 27380 8145 73762 21319 87035 20006 41357 66337 72244 12417 74478 39108 81052 41886 80085 41598 90469 37820 62641 14292 22292 23032 46380 3763 34157 41358 72220 67364 82979 17748 4...
output:
1
result:
ok single line: '1'
Test #27:
score: 0
Accepted
time: 67ms
memory: 33928kb
input:
1 100000 15732 84615 65478 72922 4812 70070 91545 99293 46477 59666 3314 93443 39531 64982 64747 82030 12281 98450 52745 57316 11751 17633 29601 84922 26662 71521 27947 71470 73449 97260 53282 87273 30913 32910 61053 92036 9316 35885 51360 77861 5693 14474 67875 86033 10664 32817 68257 80685 25788 3...
output:
0
result:
ok single line: '0'
Test #28:
score: 0
Accepted
time: 54ms
memory: 30200kb
input:
1 100000 39122 75849 42351 45694 64390 79652 20546 92407 58525 85387 2802 89047 55475 70767 35461 42042 28683 85597 50183 90609 79123 97504 7680 19455 8662 15318 2330 28664 21968 47791 26545 99256 35760 48583 67027 86346 49222 80976 39291 58154 84236 93936 50517 69137 18587 64139 20533 72118 32827 6...
output:
0
result:
ok single line: '0'
Test #29:
score: 0
Accepted
time: 58ms
memory: 30260kb
input:
1 100000 78403 94560 52684 62369 8991 28963 5240 33027 2410 80970 54998 99262 23309 24978 65969 88140 44628 46192 46032 82586 18739 30944 4149 49568 50909 75981 29053 72481 44017 68230 18598 95801 3095 37338 13292 20799 39164 41522 71361 89899 61456 87265 20034 76816 14457 91439 74116 75456 28178 60...
output:
0
result:
ok single line: '0'
Test #30:
score: 0
Accepted
time: 57ms
memory: 30132kb
input:
1 100000 23635 88992 19607 75823 31060 82008 63122 93848 22185 33690 32505 96800 33365 56049 24593 44623 25013 63810 8759 61190 57085 87064 53026 57349 45716 49352 9543 57438 3749 64110 1527 26497 6922 27142 9509 25979 36691 84730 48754 68947 18714 25054 65940 74195 15708 87136 22282 47301 4047 2520...
output:
0
result:
ok single line: '0'
Test #31:
score: 0
Accepted
time: 57ms
memory: 30200kb
input:
1 100000 18706 45356 35902 63739 85721 96649 19014 97560 30359 85721 30572 51003 54877 79877 15971 79156 65805 92693 86923 98325 41280 47502 42193 61041 25721 71038 7717 82469 69034 77566 28937 29157 77940 93752 24718 59410 10385 46565 2964 91347 16830 88383 71611 86158 77749 79935 32724 49030 86682...
output:
0
result:
ok single line: '0'
Test #32:
score: 0
Accepted
time: 54ms
memory: 30196kb
input:
1 100000 11560 77570 22569 86118 1609 62109 8355 44156 1609 55433 53411 68843 20315 69615 18947 93579 33758 68782 40591 62259 14651 70644 25253 84002 8763 11560 45932 65626 53202 58540 33417 89664 24846 97733 30290 73160 17504 44404 31385 96074 24068 60135 3849 58506 28973 88686 8533 75808 57680 928...
output:
0
result:
ok single line: '0'
Test #33:
score: 0
Accepted
time: 64ms
memory: 30140kb
input:
1 100000 74030 85908 28058 85908 85190 85908 81598 85908 21258 85908 15932 85908 83702 85908 85908 97272 67045 85908 10026 85908 28915 85908 85908 89229 60959 85908 5161 85908 85908 94442 14366 85908 71652 85908 85908 90855 4039 85908 25319 85908 54690 85908 58299 85908 85908 94091 81992 85908 85908...
output:
1
result:
ok single line: '1'
Test #34:
score: 0
Accepted
time: 56ms
memory: 30200kb
input:
1 100000 18667 64297 52888 64297 64297 75687 6968 74207 64297 92550 64297 88952 74207 76894 66629 74207 69216 74207 30077 74207 31476 64297 15420 74207 63765 64297 1699 74207 44612 64297 33271 64297 61396 74207 34063 74207 25669 74207 67751 74207 1781 74207 60880 64297 58646 64297 74207 84242 74207 ...
output:
1
result:
ok single line: '1'
Test #35:
score: 0
Accepted
time: 61ms
memory: 30216kb
input:
1 100000 14179 86021 44702 86021 51108 80516 12246 35793 1640 52100 1640 93897 51108 81182 36939 51108 1640 57834 24274 97817 1640 35715 35793 85695 24274 99014 49745 86021 51108 67726 80293 86021 33087 35793 44656 51108 51108 77213 35793 94902 24274 91373 51108 56358 1640 87187 684 51108 1640 71170...
output:
0
result:
ok single line: '0'
Test #36:
score: 0
Accepted
time: 47ms
memory: 30280kb
input:
1 100000 23091 55427 55378 55427 68503 93910 23737 97665 15203 67504 15203 41447 90608 99124 86454 99124 55261 64885 15689 26368 15203 37526 23737 97565 3516 62196 28818 42898 26105 93910 55427 56744 23737 70209 49133 99124 11002 99124 19973 23737 15689 85912 8966 93910 15203 17374 13220 99124 49535...
output:
0
result:
ok single line: '0'
Test #37:
score: 0
Accepted
time: 68ms
memory: 30132kb
input:
1 100000 59175 96860 1852 45606 22132 25840 25905 95716 23489 56400 43511 98158 63461 73870 46908 61418 18110 52202 17330 66950 17921 33738 67920 89483 16131 48115 45955 54882 2880 19244 27982 73539 90837 93180 17282 48083 33266 52410 266 17395 33056 73856 1407 99634 37758 56400 12973 61299 66732 89...
output:
0
result:
ok single line: '0'
Test #38:
score: 0
Accepted
time: 62ms
memory: 30208kb
input:
1 100000 50742 64794 37393 74158 67638 74283 40766 99219 970 91167 43159 85960 57043 85108 20289 72149 52254 57850 25965 77668 44308 62545 64771 82598 48506 68418 46600 66985 21768 29877 47015 96218 23873 83213 13194 81975 14653 49342 26730 50906 74093 77635 35958 53550 970 78239 72137 83538 37546 6...
output:
0
result:
ok single line: '0'
Test #39:
score: 0
Accepted
time: 55ms
memory: 7744kb
input:
10000 10 1 2 1 3 2 4 4 5 4 6 6 7 2 8 1 9 4 10 2 5 3 10 1 4 9 7 8 6 10 1 2 2 3 1 4 4 5 5 6 3 7 2 8 8 9 3 10 5 1 3 9 4 2 10 8 7 6 10 1 2 2 3 1 4 3 5 5 6 4 7 1 8 6 9 8 10 7 5 6 1 8 3 10 4 2 9 10 1 2 1 3 3 4 4 5 3 6 5 7 7 8 8 9 1 10 5 8 1 7 4 2 6 10 3 9 10 1 2 1 3 1 4 3 5 4 6 4 7 1 8 8 9 6 10 8 3 10 4 9...
output:
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 ...
result:
ok 10000 lines
Test #40:
score: 0
Accepted
time: 2ms
memory: 9752kb
input:
2 5 1 2 2 3 3 4 4 5 1 3 2 5 4 5 1 2 2 3 3 4 4 5 1 5 2 3 4
output:
1 0
result:
ok 2 lines