oj.uz

Submission #153772

# Submission time Handle Problem Language Result Execution time Memory
153772 2019-09-15T20:46:15 Z tutis Cats or Dogs (JOI18_catdog) C++17
100 / 100
 1626 ms 26616 KB 
#import<bits/stdc++.h>
using namespace std;const int N=101010;vector<int>adj[N];int pa[N];int dfs(int i,int p){pa[i]=p;int sz=1;pair<int,int>mx={0,0};for(int t=0;t<(int)adj[i].size();t++){int j=adj[i][t];if(j==p)continue;int x=dfs(j,i);sz+=x;mx=max(mx,{x,t});}swap(adj[i][0],adj[i][mx.second]);return sz;}int timer=1;int nr[N],head[N],tail[N];void hld(int i,int p,int h){nr[i]=timer++;head[i]=h;tail[h]=i;int t=0;for(int j:adj[i]){if(j!=p)hld(j,i,t++==0?h:j);}}struct line{int cc=0,cd=N,dd=0,dc=N;int mn(int c){if(c)return min({cd,cc,dc+1,dd+1});else return min({cd+1,cc+1,dc,dd});}};line merge(line a,line b){line c;c.cc=min({a.cc+b.cc,a.cc+b.dc+1,a.cd+b.cc+1,a.cd+b.dc});c.cd=min({a.cc+b.cd,a.cc+b.dd+1,a.cd+b.cd+1,a.cd+b.dd});c.dd=min({a.dc+b.cd,a.dc+b.dd+1,a.dd+b.cd+1,a.dd+b.dd});c.dc=min({a.dc+b.cc,a.dc+b.dc+1,a.dd+b.cc+1,a.dd+b.dc});return c;}struct ST{line X;int l,r;ST*left,*right;ST(int l,int r):l(l),r(r){if(l<r){left=new ST(l,(l+r)/2);right=new ST((l+r)/2+1,r);X=merge(left->X,right->X);}}line get(int x,int y){if(x<=l&&r<=y)return X;if(r<x||y<l)return line();return merge(left->get(x,y),right->get(x,y));}void set(int x,int w,int c){if(l==r){if(c)X.cc=w;else X.dd=w;}else{if(x<=(l+r)/2)left->set(x,w,c);else right->set(x,w,c);X=merge(left->X,right->X);}}}medis(0,N);void initialize(int N,vector<int>A,vector<int>B){for(int i=0;i<N-1;i++){adj[A[i]].push_back(B[i]);adj[B[i]].push_back(A[i]);}dfs(1,0);hld(1,0,1);}int C[N],D[N],V[N];int fix(int v,int p){V[v]=p;while(true){int w=head[v];line X=medis.get(nr[w],nr[tail[w]]);C[pa[w]]-=X.mn(1);D[pa[w]]-=X.mn(0);medis.set(nr[v],V[v]==1?N:C[v],1);medis.set(nr[v],V[v]==2?N:D[v],0);X=medis.get(nr[w],nr[tail[w]]);C[pa[w]]+=X.mn(1);D[pa[w]]+=X.mn(0);if(v==1)break;if(v!=w)v=w;else v=pa[v];}return min(C[0],D[0]);}int cat(int v){return fix(v,2);}int dog(int v){return fix(v,1);}int neighbor(int v){return fix(v,0);}

Compilation message

catdog.cpp:1:2: warning: #import is a deprecated GCC extension [-Wdeprecated]
 #import<bits/stdc++.h>
  ^~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 12280 KB Output is correct
2 Correct 18 ms 12280 KB Output is correct
3 Correct 18 ms 12152 KB Output is correct
4 Correct 18 ms 12252 KB Output is correct
5 Correct 18 ms 12280 KB Output is correct
6 Correct 18 ms 12280 KB Output is correct
7 Correct 20 ms 12280 KB Output is correct
8 Correct 18 ms 12152 KB Output is correct
9 Correct 19 ms 12280 KB Output is correct
10 Correct 18 ms 12280 KB Output is correct
11 Correct 19 ms 12280 KB Output is correct
12 Correct 19 ms 12280 KB Output is correct
13 Correct 18 ms 12152 KB Output is correct
14 Correct 18 ms 12152 KB Output is correct
15 Correct 18 ms 12280 KB Output is correct
16 Correct 18 ms 12152 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 12280 KB Output is correct
2 Correct 18 ms 12280 KB Output is correct
3 Correct 18 ms 12152 KB Output is correct
4 Correct 18 ms 12252 KB Output is correct
5 Correct 18 ms 12280 KB Output is correct
6 Correct 18 ms 12280 KB Output is correct
7 Correct 20 ms 12280 KB Output is correct
8 Correct 18 ms 12152 KB Output is correct
9 Correct 19 ms 12280 KB Output is correct
10 Correct 18 ms 12280 KB Output is correct
11 Correct 19 ms 12280 KB Output is correct
12 Correct 19 ms 12280 KB Output is correct
13 Correct 18 ms 12152 KB Output is correct
14 Correct 18 ms 12152 KB Output is correct
15 Correct 18 ms 12280 KB Output is correct
16 Correct 18 ms 12152 KB Output is correct
17 Correct 24 ms 12256 KB Output is correct
18 Correct 23 ms 12304 KB Output is correct
19 Correct 21 ms 12284 KB Output is correct
20 Correct 19 ms 12280 KB Output is correct
21 Correct 20 ms 12152 KB Output is correct
22 Correct 20 ms 12280 KB Output is correct
23 Correct 25 ms 12280 KB Output is correct
24 Correct 24 ms 12252 KB Output is correct
25 Correct 23 ms 12280 KB Output is correct
26 Correct 20 ms 12280 KB Output is correct
27 Correct 19 ms 12280 KB Output is correct
28 Correct 19 ms 12280 KB Output is correct
29 Correct 24 ms 12280 KB Output is correct
30 Correct 21 ms 12316 KB Output is correct
31 Correct 19 ms 12280 KB Output is correct
32 Correct 21 ms 12280 KB Output is correct

Subtask #3
62.0 / 62.0

# Verdict Execution time Memory Grader output
1 Correct 18 ms 12280 KB Output is correct
2 Correct 18 ms 12280 KB Output is correct
3 Correct 18 ms 12152 KB Output is correct
4 Correct 18 ms 12252 KB Output is correct
5 Correct 18 ms 12280 KB Output is correct
6 Correct 18 ms 12280 KB Output is correct
7 Correct 20 ms 12280 KB Output is correct
8 Correct 18 ms 12152 KB Output is correct
9 Correct 19 ms 12280 KB Output is correct
10 Correct 18 ms 12280 KB Output is correct
11 Correct 19 ms 12280 KB Output is correct
12 Correct 19 ms 12280 KB Output is correct
13 Correct 18 ms 12152 KB Output is correct
14 Correct 18 ms 12152 KB Output is correct
15 Correct 18 ms 12280 KB Output is correct
16 Correct 18 ms 12152 KB Output is correct
17 Correct 24 ms 12256 KB Output is correct
18 Correct 23 ms 12304 KB Output is correct
19 Correct 21 ms 12284 KB Output is correct
20 Correct 19 ms 12280 KB Output is correct
21 Correct 20 ms 12152 KB Output is correct
22 Correct 20 ms 12280 KB Output is correct
23 Correct 25 ms 12280 KB Output is correct
24 Correct 24 ms 12252 KB Output is correct
25 Correct 23 ms 12280 KB Output is correct
26 Correct 20 ms 12280 KB Output is correct
27 Correct 19 ms 12280 KB Output is correct
28 Correct 19 ms 12280 KB Output is correct
29 Correct 24 ms 12280 KB Output is correct
30 Correct 21 ms 12316 KB Output is correct
31 Correct 19 ms 12280 KB Output is correct
32 Correct 21 ms 12280 KB Output is correct
33 Correct 987 ms 16884 KB Output is correct
34 Correct 301 ms 16888 KB Output is correct
35 Correct 919 ms 15852 KB Output is correct
36 Correct 1472 ms 19896 KB Output is correct
37 Correct 41 ms 14444 KB Output is correct
38 Correct 1626 ms 20672 KB Output is correct
39 Correct 1524 ms 20708 KB Output is correct
40 Correct 1507 ms 20712 KB Output is correct
41 Correct 1526 ms 20668 KB Output is correct
42 Correct 1409 ms 20716 KB Output is correct
43 Correct 1457 ms 20676 KB Output is correct
44 Correct 1401 ms 20736 KB Output is correct
45 Correct 1416 ms 20824 KB Output is correct
46 Correct 1488 ms 20672 KB Output is correct
47 Correct 1483 ms 20668 KB Output is correct
48 Correct 354 ms 17856 KB Output is correct
49 Correct 396 ms 19288 KB Output is correct
50 Correct 167 ms 13944 KB Output is correct
51 Correct 165 ms 15020 KB Output is correct
52 Correct 76 ms 13692 KB Output is correct
53 Correct 572 ms 19568 KB Output is correct
54 Correct 505 ms 15644 KB Output is correct
55 Correct 1298 ms 18380 KB Output is correct
56 Correct 832 ms 16240 KB Output is correct
57 Correct 1051 ms 19352 KB Output is correct
58 Correct 70 ms 15116 KB Output is correct
59 Correct 173 ms 14840 KB Output is correct
60 Correct 343 ms 18444 KB Output is correct
61 Correct 363 ms 18656 KB Output is correct
62 Correct 211 ms 17232 KB Output is correct
63 Correct 117 ms 18040 KB Output is correct
64 Correct 122 ms 19576 KB Output is correct
65 Correct 133 ms 23672 KB Output is correct
66 Correct 233 ms 15152 KB Output is correct
67 Correct 185 ms 20216 KB Output is correct
68 Correct 365 ms 23640 KB Output is correct
69 Correct 131 ms 13560 KB Output is correct
70 Correct 49 ms 12408 KB Output is correct
71 Correct 189 ms 17784 KB Output is correct
72 Correct 252 ms 22408 KB Output is correct
73 Correct 505 ms 26616 KB Output is correct
74 Correct 549 ms 23032 KB Output is correct
75 Correct 422 ms 26488 KB Output is correct
76 Correct 444 ms 25300 KB Output is correct
77 Correct 572 ms 23388 KB Output is correct