oj.uz

Submission #623904

# Submission time Handle Problem Language Result Execution time Memory
623904 2022-08-06T22:36:44 Z urosk Cats or Dogs (JOI18_catdog) C++14
100 / 100
 242 ms 46796 KB 
#include "catdog.h"
#define here cerr<<"===========================================\n"
#define dbg(x) cerr<<#x<<": "<<x<<endl;
#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>
#define ld double
#define ll long long
#define llinf 100000000000000000LL // 10^17
#define pb push_back
#define popb pop_back
#define fi first
#define sc second
#define endl '\n'
#define pll pair<ll,ll>
#define pld pair<ld,ld>
#define sz(a) (ll)(a.size())
#define all(a) a.begin(),a.end()
#define ceri(a,l,r) {for(ll i_ = l;i_<=r;i_++) cerr<<a[i_]<< " ";cerr<<endl;}
#define daj_mi_malo_vremena ios_base::sync_with_stdio(false);cerr.tie(0);cout.tie(0);cin.tie(0);

using namespace std;
#define maxn 200005
ll n;
vector<ll> g[maxn];
ll ls[maxn],rs[maxn],root[maxn];
ll tsz = 0;
ll lik[maxn];
ll up[maxn],sub[maxn],in[maxn],csz[maxn],dpt[maxn],parent[maxn];
ll timer = 0;
struct node{
    ll a[2][2];
    void init(){a[0][0] = a[1][1] = 0; a[0][1] = a[1][0] = llinf;}
    node(){init();}
};
node t[4*maxn];
node mrg(node a,node b){
    node c;
    for(ll i = 0;i<=1;i++){
        for(ll j = 0;j<=1;j++){
            c.a[i][j] = llinf;
            for(ll k = 0;k<=1;k++){
                for(ll l = 0;l<=1;l++){
                    c.a[i][j] = min(c.a[i][j],a.a[i][k]+b.a[l][j] + (k^l));
                }
            }
        }
    }
    return c;
}
void dfs_siz(ll u,ll par){
    sub[u] = 1; dpt[u] = dpt[par] + 1; parent[u] = par;
    for(ll s : g[u]) if(s!=par) dfs_siz(s,u),sub[u]+=sub[s];
}
void dfs(ll u,ll par){
    if(!up[u]) up[u] = u;
    ll smax = 0;
    for(ll s : g[u]){
        if(s==par) continue;
        if(sub[smax]<sub[s]) smax = s;
    }
    if(smax==0) return;
    up[smax] = up[u];
    dfs(smax,u);
    for(ll s : g[u]){
        if(s==par||s==smax) continue;
        dfs(s,u);
    }
}
void upd(ll &v,ll tl,ll tr,ll i,ll a,ll b){
    if(!v) v = ++tsz;
    if(tl==tr){t[v].a[0][0]+=a;t[v].a[1][1]+=b;return;}
    ll mid = (tl+tr)/2;
    if(i<=mid) upd(ls[v],tl,mid,i,a,b);
    else upd(rs[v],mid+1,tr,i,a,b);
    t[v] = mrg(t[ls[v]],t[rs[v]]);
}
pll val(ll v){
    ll a = min(t[v].a[0][0],t[v].a[0][1]);
    ll b = min(t[v].a[1][0],t[v].a[1][1]);
    a = min(a,b+1);
    b = min(b,a+1);
    return {a,b};
}
void upd(ll u,ll a,ll b){
    ll lb,la,nb,na;
    while(u){
        pll p = val(root[up[u]]);
        la = p.fi; lb = p.sc;
        upd(root[up[u]],1,csz[up[u]],dpt[u]-dpt[up[u]]+1,a,b);
        p = val(root[up[u]]);
        na = p.fi; nb = p.sc;
        u = parent[up[u]];
        a = na - la; b = nb - lb;
    }
}
ll rez(){pll p = val(root[1]); return min(p.fi,p.sc);}
void initialize(int N, std::vector<int> A, std::vector<int> B) {
    n = N;
    for(ll i = 0;i<n-1;i++){
        ll x = A[i],y = B[i];
        g[x].pb(y);
        g[y].pb(x);
    }
    dfs_siz(1,0); dfs(1,0);
    for(ll i = 1;i<=n;i++) csz[up[i]]++;
}

int cat(int v) {
    upd(v,n,0);
    lik[v] = 1;
    return rez();
}
int dog(int v) {
    upd(v,0,n);
    lik[v] = 2;
    return rez();
}
int neighbor(int v) {
    if(lik[v]==1) upd(v,-n,0);
    else upd(v,0,-n);
    lik[v] = 0;
    return rez();
}
/*
5
1 2
2 3
2 4
4 5
5
2 3
1 5
2 2
1 1
3 2
out:
0
1
0
2
1
*/

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 30036 KB Output is correct
2 Correct 14 ms 30140 KB Output is correct
3 Correct 15 ms 30120 KB Output is correct
4 Correct 13 ms 30096 KB Output is correct
5 Correct 13 ms 30068 KB Output is correct
6 Correct 14 ms 30068 KB Output is correct
7 Correct 14 ms 30016 KB Output is correct
8 Correct 13 ms 30052 KB Output is correct
9 Correct 14 ms 30036 KB Output is correct
10 Correct 13 ms 30080 KB Output is correct
11 Correct 16 ms 30096 KB Output is correct
12 Correct 15 ms 30060 KB Output is correct
13 Correct 13 ms 30036 KB Output is correct
14 Correct 16 ms 30084 KB Output is correct
15 Correct 14 ms 30064 KB Output is correct
16 Correct 15 ms 30036 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 30036 KB Output is correct
2 Correct 14 ms 30140 KB Output is correct
3 Correct 15 ms 30120 KB Output is correct
4 Correct 13 ms 30096 KB Output is correct
5 Correct 13 ms 30068 KB Output is correct
6 Correct 14 ms 30068 KB Output is correct
7 Correct 14 ms 30016 KB Output is correct
8 Correct 13 ms 30052 KB Output is correct
9 Correct 14 ms 30036 KB Output is correct
10 Correct 13 ms 30080 KB Output is correct
11 Correct 16 ms 30096 KB Output is correct
12 Correct 15 ms 30060 KB Output is correct
13 Correct 13 ms 30036 KB Output is correct
14 Correct 16 ms 30084 KB Output is correct
15 Correct 14 ms 30064 KB Output is correct
16 Correct 15 ms 30036 KB Output is correct
17 Correct 14 ms 30112 KB Output is correct
18 Correct 14 ms 30240 KB Output is correct
19 Correct 13 ms 30164 KB Output is correct
20 Correct 13 ms 30036 KB Output is correct
21 Correct 14 ms 30164 KB Output is correct
22 Correct 14 ms 30108 KB Output is correct
23 Correct 14 ms 30208 KB Output is correct
24 Correct 14 ms 30204 KB Output is correct
25 Correct 14 ms 30164 KB Output is correct
26 Correct 14 ms 30072 KB Output is correct
27 Correct 13 ms 30168 KB Output is correct
28 Correct 14 ms 30164 KB Output is correct
29 Correct 15 ms 30164 KB Output is correct
30 Correct 13 ms 30036 KB Output is correct
31 Correct 13 ms 30088 KB Output is correct
32 Correct 13 ms 30080 KB Output is correct

Subtask #3
62.0 / 62.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 30036 KB Output is correct
2 Correct 14 ms 30140 KB Output is correct
3 Correct 15 ms 30120 KB Output is correct
4 Correct 13 ms 30096 KB Output is correct
5 Correct 13 ms 30068 KB Output is correct
6 Correct 14 ms 30068 KB Output is correct
7 Correct 14 ms 30016 KB Output is correct
8 Correct 13 ms 30052 KB Output is correct
9 Correct 14 ms 30036 KB Output is correct
10 Correct 13 ms 30080 KB Output is correct
11 Correct 16 ms 30096 KB Output is correct
12 Correct 15 ms 30060 KB Output is correct
13 Correct 13 ms 30036 KB Output is correct
14 Correct 16 ms 30084 KB Output is correct
15 Correct 14 ms 30064 KB Output is correct
16 Correct 15 ms 30036 KB Output is correct
17 Correct 14 ms 30112 KB Output is correct
18 Correct 14 ms 30240 KB Output is correct
19 Correct 13 ms 30164 KB Output is correct
20 Correct 13 ms 30036 KB Output is correct
21 Correct 14 ms 30164 KB Output is correct
22 Correct 14 ms 30108 KB Output is correct
23 Correct 14 ms 30208 KB Output is correct
24 Correct 14 ms 30204 KB Output is correct
25 Correct 14 ms 30164 KB Output is correct
26 Correct 14 ms 30072 KB Output is correct
27 Correct 13 ms 30168 KB Output is correct
28 Correct 14 ms 30164 KB Output is correct
29 Correct 15 ms 30164 KB Output is correct
30 Correct 13 ms 30036 KB Output is correct
31 Correct 13 ms 30088 KB Output is correct
32 Correct 13 ms 30080 KB Output is correct
33 Correct 120 ms 38544 KB Output is correct
34 Correct 62 ms 38348 KB Output is correct
35 Correct 124 ms 36520 KB Output is correct
36 Correct 193 ms 44132 KB Output is correct
37 Correct 27 ms 33644 KB Output is correct
38 Correct 242 ms 45576 KB Output is correct
39 Correct 235 ms 45636 KB Output is correct
40 Correct 223 ms 45636 KB Output is correct
41 Correct 228 ms 45676 KB Output is correct
42 Correct 224 ms 45580 KB Output is correct
43 Correct 224 ms 45648 KB Output is correct
44 Correct 217 ms 45676 KB Output is correct
45 Correct 220 ms 45616 KB Output is correct
46 Correct 216 ms 45588 KB Output is correct
47 Correct 234 ms 45628 KB Output is correct
48 Correct 60 ms 39868 KB Output is correct
49 Correct 67 ms 42096 KB Output is correct
50 Correct 30 ms 32756 KB Output is correct
51 Correct 35 ms 34832 KB Output is correct
52 Correct 24 ms 32492 KB Output is correct
53 Correct 117 ms 42400 KB Output is correct
54 Correct 71 ms 36000 KB Output is correct
55 Correct 166 ms 41016 KB Output is correct
56 Correct 99 ms 36836 KB Output is correct
57 Correct 128 ms 41480 KB Output is correct
58 Correct 30 ms 34856 KB Output is correct
59 Correct 35 ms 34488 KB Output is correct
60 Correct 65 ms 40812 KB Output is correct
61 Correct 67 ms 41360 KB Output is correct
62 Correct 52 ms 38852 KB Output is correct
63 Correct 46 ms 37240 KB Output is correct
64 Correct 55 ms 38692 KB Output is correct
65 Correct 64 ms 43560 KB Output is correct
66 Correct 59 ms 33872 KB Output is correct
67 Correct 64 ms 39672 KB Output is correct
68 Correct 106 ms 43980 KB Output is correct
69 Correct 34 ms 31572 KB Output is correct
70 Correct 20 ms 30276 KB Output is correct
71 Correct 56 ms 36572 KB Output is correct
72 Correct 75 ms 41760 KB Output is correct
73 Correct 141 ms 46796 KB Output is correct
74 Correct 149 ms 43880 KB Output is correct
75 Correct 123 ms 46796 KB Output is correct
76 Correct 120 ms 45672 KB Output is correct
77 Correct 151 ms 44284 KB Output is correct