oj.uz

Submission #1014461

# Submission time Handle Problem Language Result Execution time Memory
1014461 2024-07-05T00:33:16 Z vjudge1 Cats or Dogs (JOI18_catdog) C++17
100 / 100
 439 ms 25856 KB 
#include "catdog.h"
#define M 100100
#include<bits/stdc++.h>
using namespace std;
int type[M],sz[M],id[M],top[M],out[M],hev[M],CC,par[M],osc[M],BG=1e9;
struct dpstruct{
    int cc,cd,dc,dd;
    dpstruct(){cc=dd=0,cd=dc=1;}
    dpstruct(int x){cc=dd=0,cd=dc=BG;}
    inline friend dpstruct operator +(dpstruct a,dpstruct b){
        dpstruct c;
        swap(a,b);
        c.cc=min({a.cc+b.cc,a.cd+b.dc,BG});
        c.cd=min({a.cc+b.cd,a.cd+b.dd,BG});
        c.dc=min({a.dd+b.dc,a.dc+b.cc,BG});
        c.dd=min({a.dd+b.dd,a.dc+b.cd,BG});
        return c;
    }
    inline void sub(dpstruct x){
        int dog=min(x.cd,x.dd);
        int cat=min(x.cc,x.dc);
        dog=min(dog,cat+1);
        cat=min(cat,dog+1);
        cc-=cat;
        cd-=dog;
        dc-=cat;
        dd-=dog;
    }
    inline void add(dpstruct x){
        int dog=min(x.cd,x.dd);
        int cat=min(x.cc,x.dc);
        dog=min(dog,cat+1);
        cat=min(cat,dog+1);
        cc+=cat;
        cd+=dog;
        dc+=cat;
        dd+=dog;
    }
    inline int an(){return min({cc,cd,dc,dd});}
} T[1<<18],fl[M];
vector<int>adj[M];
dpstruct query(int i,int l,int r,int ll,int rr){
    if(ll>r|l>rr)return dpstruct(0);
    if(ll<=l&&r<=rr)return T[i];
    return query(i*2,l,l+r>>1,ll,rr)+
        query(i*2+1,l+r+2>>1,r,ll,rr);
}
void upd(int i,int l,int r,int p,dpstruct x){
    if(l==r)return void(T[i]=x);
    if(p<=l+r>>1)upd(i*2,l,l+r>>1,p,x);
    else upd(i*2+1,l+r+2>>1,r,p,x);
    T[i]=T[i*2]+T[i*2+1];
}
void dfs1(int n){
    sz[n]=1;
    for(auto i:adj[n]) if(i-par[n])
        par[i]=n,dfs1(i),sz[n]+=sz[i],
        hev[n]=(sz[hev[n]]<sz[i]?i:hev[n]);
}
void dfs2(int n){
    osc[id[n]=++CC]=n;
    top[n]=(n-hev[par[n]]?n:top[par[n]]);
    out[top[n]]=CC;
    if(hev[n])dfs2(hev[n]);
    for(auto i:adj[n])  
        if(i-par[n]&&i-hev[n])
            dfs2(i);
}
void initialize(int N, std::vector<int> A, std::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]);
    dfs1(1);
    dfs2(1);
}
dpstruct gedan(int chain){
    return query(1,1,CC,id[top[chain]],out[top[chain]]);    
}
dpstruct idk(int t,dpstruct x){
    if(t>1)x.cc=x.dc=BG;
    else if(t)x.cd=x.dd=BG;
    return x;
}
void redo(int n){
    if(!n)return;
    fl[par[top[n]]].sub(gedan(n));
    upd(1,1,CC,id[n],idk(type[n],fl[n]));
    fl[par[top[n]]].add(gedan(n));
    return redo(par[top[n]]);
}
int cat(int v) {
    type[v]=1;
    redo(v);
    return gedan(1).an();
}

int dog(int v) {
    type[v]=2;
    redo(v);
    return gedan(1).an();
}

int neighbor(int v) {
    type[v]=0;
    redo(v);
    return gedan(1).an();
}

Compilation message

catdog.cpp: In function 'dpstruct query(int, int, int, int, int)':
catdog.cpp:43:10: warning: suggest parentheses around comparison in operand of '|' [-Wparentheses]
   43 |     if(ll>r|l>rr)return dpstruct(0);
      |        ~~^~
catdog.cpp:45:25: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   45 |     return query(i*2,l,l+r>>1,ll,rr)+
      |                        ~^~
catdog.cpp:46:24: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   46 |         query(i*2+1,l+r+2>>1,r,ll,rr);
      |                     ~~~^~
catdog.cpp: In function 'void upd(int, int, int, int, dpstruct)':
catdog.cpp:50:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   50 |     if(p<=l+r>>1)upd(i*2,l,l+r>>1,p,x);
      |           ~^~
catdog.cpp:50:29: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   50 |     if(p<=l+r>>1)upd(i*2,l,l+r>>1,p,x);
      |                            ~^~
catdog.cpp:51:23: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   51 |     else upd(i*2+1,l+r+2>>1,r,p,x);
      |                    ~~~^~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8280 KB Output is correct
2 Correct 3 ms 8284 KB Output is correct
3 Correct 3 ms 8284 KB Output is correct
4 Correct 4 ms 8500 KB Output is correct
5 Correct 3 ms 8284 KB Output is correct
6 Correct 4 ms 8284 KB Output is correct
7 Correct 4 ms 8280 KB Output is correct
8 Correct 4 ms 8284 KB Output is correct
9 Correct 3 ms 8284 KB Output is correct
10 Correct 4 ms 8284 KB Output is correct
11 Correct 3 ms 8284 KB Output is correct
12 Correct 3 ms 8284 KB Output is correct
13 Correct 4 ms 8284 KB Output is correct
14 Correct 3 ms 8284 KB Output is correct
15 Correct 4 ms 8284 KB Output is correct
16 Correct 4 ms 8284 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8280 KB Output is correct
2 Correct 3 ms 8284 KB Output is correct
3 Correct 3 ms 8284 KB Output is correct
4 Correct 4 ms 8500 KB Output is correct
5 Correct 3 ms 8284 KB Output is correct
6 Correct 4 ms 8284 KB Output is correct
7 Correct 4 ms 8280 KB Output is correct
8 Correct 4 ms 8284 KB Output is correct
9 Correct 3 ms 8284 KB Output is correct
10 Correct 4 ms 8284 KB Output is correct
11 Correct 3 ms 8284 KB Output is correct
12 Correct 3 ms 8284 KB Output is correct
13 Correct 4 ms 8284 KB Output is correct
14 Correct 3 ms 8284 KB Output is correct
15 Correct 4 ms 8284 KB Output is correct
16 Correct 4 ms 8284 KB Output is correct
17 Correct 5 ms 8384 KB Output is correct
18 Correct 5 ms 8540 KB Output is correct
19 Correct 6 ms 8552 KB Output is correct
20 Correct 4 ms 8460 KB Output is correct
21 Correct 4 ms 8284 KB Output is correct
22 Correct 4 ms 8540 KB Output is correct
23 Correct 6 ms 8376 KB Output is correct
24 Correct 5 ms 8536 KB Output is correct
25 Correct 4 ms 8540 KB Output is correct
26 Correct 4 ms 8540 KB Output is correct
27 Correct 4 ms 8464 KB Output is correct
28 Correct 4 ms 8544 KB Output is correct
29 Correct 4 ms 8540 KB Output is correct
30 Correct 3 ms 8392 KB Output is correct
31 Correct 4 ms 8540 KB Output is correct
32 Correct 4 ms 8540 KB Output is correct

Subtask #3
62.0 / 62.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 8280 KB Output is correct
2 Correct 3 ms 8284 KB Output is correct
3 Correct 3 ms 8284 KB Output is correct
4 Correct 4 ms 8500 KB Output is correct
5 Correct 3 ms 8284 KB Output is correct
6 Correct 4 ms 8284 KB Output is correct
7 Correct 4 ms 8280 KB Output is correct
8 Correct 4 ms 8284 KB Output is correct
9 Correct 3 ms 8284 KB Output is correct
10 Correct 4 ms 8284 KB Output is correct
11 Correct 3 ms 8284 KB Output is correct
12 Correct 3 ms 8284 KB Output is correct
13 Correct 4 ms 8284 KB Output is correct
14 Correct 3 ms 8284 KB Output is correct
15 Correct 4 ms 8284 KB Output is correct
16 Correct 4 ms 8284 KB Output is correct
17 Correct 5 ms 8384 KB Output is correct
18 Correct 5 ms 8540 KB Output is correct
19 Correct 6 ms 8552 KB Output is correct
20 Correct 4 ms 8460 KB Output is correct
21 Correct 4 ms 8284 KB Output is correct
22 Correct 4 ms 8540 KB Output is correct
23 Correct 6 ms 8376 KB Output is correct
24 Correct 5 ms 8536 KB Output is correct
25 Correct 4 ms 8540 KB Output is correct
26 Correct 4 ms 8540 KB Output is correct
27 Correct 4 ms 8464 KB Output is correct
28 Correct 4 ms 8544 KB Output is correct
29 Correct 4 ms 8540 KB Output is correct
30 Correct 3 ms 8392 KB Output is correct
31 Correct 4 ms 8540 KB Output is correct
32 Correct 4 ms 8540 KB Output is correct
33 Correct 255 ms 14340 KB Output is correct
34 Correct 74 ms 14144 KB Output is correct
35 Correct 208 ms 13132 KB Output is correct
36 Correct 381 ms 18044 KB Output is correct
37 Correct 15 ms 11096 KB Output is correct
38 Correct 439 ms 19084 KB Output is correct
39 Correct 376 ms 19012 KB Output is correct
40 Correct 375 ms 19004 KB Output is correct
41 Correct 395 ms 19004 KB Output is correct
42 Correct 369 ms 19176 KB Output is correct
43 Correct 345 ms 19072 KB Output is correct
44 Correct 362 ms 19212 KB Output is correct
45 Correct 332 ms 19008 KB Output is correct
46 Correct 375 ms 19008 KB Output is correct
47 Correct 366 ms 19008 KB Output is correct
48 Correct 109 ms 15904 KB Output is correct
49 Correct 129 ms 17652 KB Output is correct
50 Correct 50 ms 10588 KB Output is correct
51 Correct 51 ms 12120 KB Output is correct
52 Correct 22 ms 10272 KB Output is correct
53 Correct 155 ms 17500 KB Output is correct
54 Correct 120 ms 12624 KB Output is correct
55 Correct 330 ms 16152 KB Output is correct
56 Correct 183 ms 13560 KB Output is correct
57 Correct 253 ms 17528 KB Output is correct
58 Correct 26 ms 11988 KB Output is correct
59 Correct 51 ms 12140 KB Output is correct
60 Correct 111 ms 16608 KB Output is correct
61 Correct 113 ms 17212 KB Output is correct
62 Correct 67 ms 15000 KB Output is correct
63 Correct 41 ms 15536 KB Output is correct
64 Correct 40 ms 17244 KB Output is correct
65 Correct 42 ms 22104 KB Output is correct
66 Correct 54 ms 12124 KB Output is correct
67 Correct 49 ms 18268 KB Output is correct
68 Correct 101 ms 22672 KB Output is correct
69 Correct 24 ms 10076 KB Output is correct
70 Correct 8 ms 8540 KB Output is correct
71 Correct 45 ms 15448 KB Output is correct
72 Correct 65 ms 20564 KB Output is correct
73 Correct 148 ms 25752 KB Output is correct
74 Correct 175 ms 22168 KB Output is correct
75 Correct 120 ms 25856 KB Output is correct
76 Correct 110 ms 24396 KB Output is correct
77 Correct 177 ms 22616 KB Output is correct