QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#107075 | #5020. 举办乘凉州喵,举办乘凉州谢谢喵 | 275307894a | 8 | 2495ms | 220556kb | C++14 | 3.0kb | 2023-05-20 10:53:49 | 2023-05-20 10:53:50 |
Judging History
answer
#include<bits/stdc++.h>
#define Gc() getchar()
#define Me(x,y) memset(x,y,sizeof(x))
#define Mc(x,y) memcpy(x,y,sizeof(x))
#define d(x,y) ((m)*(x-1)+(y))
#define R(n) (rnd()%(n)+1)
#define Pc(x) putchar(x)
#define LB lower_bound
#define UB upper_bound
#define PB push_back
#define fi first
#define se second
using ll=long long;using db=double;using lb=long db;using ui=unsigned;using ull=unsigned long long;using LL=__int128;
using namespace std;const int N=2e5+5,M=N*4+5,K=20,mod=1e4+7,Mod=mod-1;const db eps=1e-9;const int INF=1e9+7;mt19937 rnd(263082);
int n,q,x,y,z,fa[N],Sn[N],Si[N],d[N],Tp[N],ans[N];vector<int> S[N];
void dfs1(int x,int La){fa[x]=La;Si[x]=1;d[x]=d[La]+1;for(int i:S[x]) if(i^La) dfs1(i,x),Si[x]+=Si[i],Si[Sn[x]]<Si[i]&&(Sn[x]=i);}
void dfs2(int x,int La){Tp[x]=La;if(Sn[x]) dfs2(Sn[x],Sn[x]);for(int i:S[x]) if(i^fa[x]&&i^Sn[x]) dfs2(i,i);}
int LCA(int x,int y){while(Tp[x]^Tp[y]) d[Tp[x]]<d[Tp[y]]&&(swap(x,y),0),x=fa[Tp[x]];return d[x]<d[y]?x:y;}
struct BIT{
int f[N];void Add(int x,int y){while(x<=n) f[x]+=y,x+=x&-x;}int Qry(int x){x=min(x,n);int Ans=0;while(x) Ans+=f[x],x-=x&-x;return Ans;}
}f1,f2,g;
vector<pair<int,int> > QQ[N];
namespace Part1{
int vis[N],Si[N],Ct,Rt,f[N];
void GI(int x,int La){Si[x]=1;Ct++;for(int i:S[x]) if(i^La&&!vis[i]) GI(i,x),Si[x]+=Si[i];}
void DP(int x,int La){f[x]=Ct-Si[x];for(int i:S[x]) if(i^La&&!vis[i]) DP(i,x),f[x]=max(f[x],Si[i]);if(f[x]<f[Rt]) Rt=x;}
void Ins(int x,int La,int d,int w){g.Add(d+1,w);for(int i:S[x]) if(i^La&&!vis[i]) Ins(i,x,d+1,w);}
void Qry(int x,int La,int d){
for(auto i:QQ[x]) if(d<=i.fi) ans[i.se]+=g.Qry(i.fi-d+1);
for(int i:S[x]) if(i^La&&!vis[i]) Qry(i,x,d+1);
}
void Solve(int x){
Ct=0;GI(x,0);f[Rt=0]=INF;DP(x,0);vis[x=Rt]=1;
Ins(x,0,0,1);for(auto i:QQ[x]) ans[i.se]+=g.Qry(i.fi+1);
for(int i:S[x]) if(!vis[i]) Ins(i,x,1,-1),Qry(i,x,1),Ins(i,x,1,1);
Ins(x,0,0,-1);for(int i:S[x]) if(!vis[i]) Solve(i);
}
}
vector<pair<int,int> > Q1[N],Q2[N];
void AQ(int x,int y,int Id){Q1[x].PB({y,Id});if(y) Q2[x].PB({y-1,-Id});}
void Push(int x,int y,int z,int Id){while(Tp[x]^Tp[y]) Sn[x]&&(AQ(Sn[x],z,-Id),0),AQ(Tp[x],z,Id),x=fa[Tp[x]];Sn[x]&&(AQ(Sn[x],z,-Id),0);Sn[y]&&(AQ(Sn[y],z,Id),0);}
void Ins(int x,int La,int D,int w){f2.Add(d[x],w);f1.Add(D+1,w);for(int i:S[x]) if(i^La) Ins(i,x,D+1,w);}
void Cl(int x,int La){f1.Add(d[x],-1);f2.Add(1,-1);for(int i:S[x]) if(i^La&&i^Sn[x]) Ins(i,x,1,-1);if(Sn[x]) Cl(Sn[x],x);}
void dfs(int x,int La){
for(int i:S[x]) if(i^La&&i^Sn[x]) dfs(i,x),Cl(i,x);
if(Sn[x]) dfs(Sn[x],x);for(int i:S[x]) if(i^La&&i^Sn[x]) Ins(i,x,1,1);f2.Add(d[x],1);f1.Add(1,1);
for(auto i:Q1[x]) ans[abs(i.se)]+=(i.se/abs(i.se))*f1.Qry(i.fi+1);
for(auto i:Q2[x]) ans[abs(i.se)]+=(i.se/abs(i.se))*f2.Qry(d[x]+i.fi);
}
int main(){
int i,j;scanf("%d",&n);for(i=1;i<n;i++) scanf("%d%d",&x,&y),S[x].PB(y),S[y].PB(x);
dfs1(1,0);dfs2(1,1);scanf("%d",&q);for(i=1;i<=q;i++){
scanf("%d%d%d",&x,&y,&z);int Ls=LCA(x,y);QQ[Ls].PB({z,i});
Push(x,Ls,z,i);Push(y,Ls,z,i);
}
Part1::Solve(1);dfs(1,0);
for(i=1;i<=q;i++) printf("%d\n",ans[i]);
}
Details
Tip: Click on the bar to expand more detailed information
Subtask #1:
score: 0
Wrong Answer
Test #1:
score: 0
Wrong Answer
time: 19ms
memory: 25764kb
input:
4988 1 2 1 3 1 4 4 5 1 6 3 7 3 8 5 9 4 10 6 11 3 12 9 13 11 14 8 15 11 16 1 17 7 18 8 19 18 20 7 21 10 22 15 23 18 24 4 25 24 26 9 27 23 28 3 29 3 30 30 31 11 32 18 33 2 34 32 35 29 36 29 37 19 38 9 39 6 40 25 41 16 42 31 43 6 44 42 45 32 46 27 47 32 48 44 49 7 50 10 51 24 52 46 53 30 54 46 55 39 56...
output:
5669 11323 5000 8758 9410 5638 6207 10491 5002 3361 10437 2189 5953 10582 5074 5007 4988 4104 4995 12 7715 4873 5030 4978 19 9461 5061 5187 10004 4999 6553 4243 3182 6989 7086 5974 9309 11183 7350 5101 8340 6880 2602 6326 5056 4947 5475 5030 8673 1208 8266 8208 9001 13475 5009 7619 11358 7200 12674 ...
result:
wrong answer 1st numbers differ - expected: '3226', found: '5669'
Subtask #2:
score: 8
Accepted
Test #9:
score: 8
Accepted
time: 1141ms
memory: 48920kb
input:
199995 1 2 2 3 2 4 1 5 3 6 5 7 6 8 4 9 2 10 5 11 5 12 1 13 1 14 1 15 13 16 1 17 10 18 16 19 11 20 8 21 17 22 4 23 19 24 7 25 22 26 8 27 14 28 1 29 9 30 3 31 3 32 21 33 19 34 26 35 34 36 5 37 29 38 22 39 5 40 13 41 28 42 8 43 35 44 22 45 14 46 12 47 32 48 11 49 8 50 18 51 23 52 18 53 4 54 6 55 10 56 ...
output:
757 69428 2793 181264 91707 182 32496 199183 6399 15975 11640 119051 236 689 15 9532 41 36592 178936 56 45424 193403 90248 3417 949 68 34133 60471 199861 188090 75088 127 1 6 4 3 3 11 61157 199860 199153 155706 196287 192862 53742 51862 179199 428 196282 199989 3613 26 99007 134461 198159 20382 7518...
result:
ok 199996 numbers
Test #10:
score: 0
Accepted
time: 814ms
memory: 48068kb
input:
199993 1 2 1 3 2 4 2 5 3 6 3 7 4 8 4 9 5 10 5 11 6 12 6 13 7 14 7 15 8 16 8 17 9 18 9 19 10 20 10 21 11 22 11 23 12 24 12 25 13 26 13 27 14 28 14 29 15 30 15 31 16 32 16 33 17 34 17 35 18 36 18 37 19 38 19 39 20 40 20 41 21 42 21 43 22 44 22 45 23 46 23 47 24 48 24 49 25 50 25 51 26 52 26 53 27 54 2...
output:
22 31743 62 30 510 6079 94 24063 190 4079 382 30 62 12159 1022 2043 8063 62 4 3063 4079 30 254 46 10 22 6111 12159 16127 22 1 12031 1 94 382 766 4063 254 46 766 1022 62 766 1 22 46 30 8063 8063 254 3063 22 62 30 1 62 254 4 10 15871 1022 46 2039 6079 22 254 1022 16127 30 766 8127 14 14 10 46 1 62 406...
result:
ok 199995 numbers
Test #11:
score: 0
Accepted
time: 1586ms
memory: 58988kb
input:
199993 25163 125238 125238 19096 19096 88864 88864 113505 113505 12722 12722 56225 56225 8736 8736 74926 74926 38529 38529 80231 80231 19719 19719 198784 198784 75213 75213 190174 190174 163340 163340 62363 62363 144160 144160 130912 130912 3919 3919 21218 21218 85281 85281 187312 187312 79930 79930...
output:
97095 57496 116181 132482 144412 69917 174677 96334 37980 80902 148979 22074 166530 153392 43419 163281 148526 62703 79363 199993 153733 152298 5085 156125 117973 61925 36346 95741 124148 102890 20093 5408 77598 176994 177809 169850 144418 43786 189237 69098 5167 199993 103575 105198 197612 38829 20...
result:
ok 199994 numbers
Test #12:
score: 0
Accepted
time: 1346ms
memory: 79136kb
input:
200000 3219 118490 118490 61372 61372 74390 74390 88375 88375 63918 63918 37580 37580 33219 33219 170480 170480 81737 81737 153202 153202 93921 93921 149109 149109 88339 88339 167037 167037 67099 67099 58363 58363 6784 6784 109386 109386 11895 11895 14872 14872 65638 65638 43958 43958 181669 181669 ...
output:
59633 108235 72863 144596 90365 57521 48069 163045 124462 18633 39115 111210 59413 80420 86945 182373 99188 57011 148702 53778 132289 68037 69705 50797 91155 77852 27499 106082 87174 122445 78221 71755 10125 93101 163451 16175 104215 50130 81182 30091 44299 81429 91045 111890 73099 72278 74017 59177...
result:
ok 199992 numbers
Test #13:
score: 0
Accepted
time: 925ms
memory: 56348kb
input:
199992 1 2 1 3 2 4 2 5 4 6 1 7 5 8 5 9 3 10 6 11 4 12 4 13 6 14 5 15 9 16 11 17 17 18 13 19 18 20 14 21 18 22 17 23 21 24 19 25 25 26 25 27 27 28 21 29 20 30 29 31 23 32 31 33 33 34 34 35 28 36 33 37 28 38 38 39 30 40 33 41 33 42 38 43 41 44 44 45 44 46 41 47 45 48 41 49 47 50 49 51 42 52 50 53 44 5...
output:
40732 40074 40815 13444 89657 22422 23494 61358 102922 66209 62228 32272 77095 68562 27799 74336 45129 71632 68525 13022 71347 63735 92178 64200 90446 50728 83632 61441 43695 10496 35481 81587 75266 77943 56182 14188 46302 108160 84166 3192 52959 522 57676 28165 97982 15371 95012 3437 53633 49240 55...
result:
ok 199998 numbers
Test #14:
score: 0
Accepted
time: 753ms
memory: 62260kb
input:
199990 1 2 1 3 4 2 5 2 6 4 7 4 8 6 9 6 10 8 11 8 12 10 13 10 14 12 15 12 16 14 17 14 18 16 19 16 20 18 21 18 22 20 23 20 24 22 25 22 26 24 27 24 28 26 29 26 30 28 31 28 32 30 33 30 34 32 35 32 36 34 37 34 38 36 39 36 40 38 41 38 42 40 43 40 44 42 45 42 46 44 47 44 48 46 49 46 50 48 51 48 52 50 53 50...
output:
59224 71441 128293 104009 42824 136779 12532 93560 81095 108628 176617 63487 103752 175849 36193 178489 73311 34313 46423 75989 76344 145231 20076 127399 81148 17356 39455 99025 44904 3548 78503 135455 28 136931 58140 53161 33288 134084 67877 26048 51868 74301 139992 165315 126781 136117 28112 86333...
result:
ok 199996 numbers
Test #15:
score: 0
Accepted
time: 567ms
memory: 57528kb
input:
199997 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 29 29 30 30 31 31 32 32 33 33 34 34 35 35 36 36 37 37 38 38 39 39 40 40 41 41 42 42 43 43 44 44 45 45 46 46 47 47 48 48 49 49 50 50 51 51 52 52 5...
output:
65710 203 400 304 388 328 441 19 417 49 311 329 193 71968 895 179 152645 282 7600 185 150933 150045 444 3693 56770 34420 8765 335 73751 4665 3 203 380 44479 392 356 113 373 46663 143312 234 265 386 378 339 184360 404 21904 9861 393 445 441 91 299 9 213 24586 65263 22235 121 35761 169 36121 435 40035...
result:
ok 199995 numbers
Test #16:
score: 0
Accepted
time: 1702ms
memory: 51288kb
input:
199997 1 64008 2 4187 3 154904 4 191579 5 107782 6 29053 7 123085 8 191601 9 95335 10 164039 11 171804 12 145532 13 104884 14 19820 15 74055 16 14172 17 98802 18 144668 19 188276 20 173096 21 62815 22 133749 23 65035 24 161785 25 191028 26 84730 27 176488 28 173295 29 110316 30 121532 31 81037 32 81...
output:
135622 123942 47301 113894 93180 10469 9237 13166 2896 20323 182669 26483 168662 47202 7900 7785 129591 1577 17943 5638 16670 16980 32760 153668 394 142656 30298 1801 167880 25099 10860 39103 28660 158337 55 126816 57661 17387 11147 95051 3 13130 28040 163801 141 109445 110915 13173 56634 20527 6325...
result:
ok 199993 numbers
Subtask #3:
score: 0
Wrong Answer
Dependency #2:
100%
Accepted
Test #17:
score: 0
Wrong Answer
time: 1575ms
memory: 81208kb
input:
199996 1 2 2 3 3 4 1 5 1 6 4 7 1 8 5 9 4 10 4 11 7 12 11 13 7 14 10 15 2 16 1 17 9 18 10 19 9 20 13 21 8 22 14 23 21 24 8 25 20 26 23 27 17 28 6 29 9 30 9 31 14 32 14 33 6 34 7 35 35 36 31 37 37 38 2 39 12 40 16 41 18 42 3 43 27 44 4 45 7 46 24 47 16 48 44 49 10 50 11 51 9 52 16 53 39 54 30 55 4 56 ...
output:
190684 22562 94165 101421 32127 180796 180041 194847 234450 451543 173271 148295 19891 100092 66812 60347 39657 66797 291733 12 1369 310169 103608 72936 118535 96 53952 46980 102921 12946 19008 314670 54640 68686 200361 125735 163841 17857 173389 110789 73901 24364 147537 49525 84357 29901 183409 86...
result:
wrong answer 1st numbers differ - expected: '190330', found: '190684'
Subtask #4:
score: 0
Wrong Answer
Test #25:
score: 0
Wrong Answer
time: 2495ms
memory: 220556kb
input:
199991 1 2 2 3 3 4 3 5 5 6 3 7 1 8 8 9 8 10 10 11 1 12 1 13 13 14 4 15 12 16 13 17 17 18 8 19 3 20 9 21 16 22 10 23 1 24 7 25 6 26 12 27 4 28 21 29 27 30 30 31 21 32 19 33 20 34 17 35 7 36 13 37 24 38 37 39 30 40 31 41 15 42 9 43 32 44 41 45 18 46 38 47 8 48 35 49 13 50 35 51 47 52 35 53 48 54 44 55...
output:
573579 298069 201970 242547 235278 199793 246756 240031 389828 224213 329409 349787 371856 200718 158304 214019 247112 204859 203513 55810 226490 195466 111799 210058 407427 259148 195353 196035 290684 396316 201052 337463 285119 205794 413113 68866 215497 200576 230676 247642 208542 202505 449309 2...
result:
wrong answer 1st numbers differ - expected: '78', found: '573579'
Subtask #5:
score: 0
Skipped
Dependency #1:
0%
Subtask #6:
score: 0
Skipped
Dependency #1:
0%