oj.uz

Submission #131764

# Submission time Handle Problem Language Result Execution time Memory
131764 2019-07-17T15:20:18 Z duality Cats or Dogs (JOI18_catdog) C++11
100 / 100
 816 ms 24204 KB 
#define DEBUG 1

#include <bits/stdc++.h>
using namespace std;

#if DEBUG
// basic debugging macros
int __i__,__j__;
#define printLine(l) for(__i__=0;__i__<l;__i__++){cout<<"-";}cout<<endl
#define printLine2(l,c) for(__i__=0;__i__<l;__i__++){cout<<c;}cout<<endl
#define printVar(n) cout<<#n<<": "<<n<<endl
#define printArr(a,l) cout<<#a<<": ";for(__i__=0;__i__<l;__i__++){cout<<a[__i__]<<" ";}cout<<endl
#define print2dArr(a,r,c) cout<<#a<<":\n";for(__i__=0;__i__<r;__i__++){for(__j__=0;__j__<c;__j__++){cout<<a[__i__][__j__]<<" ";}cout<<endl;}
#define print2dArr2(a,r,c,l) cout<<#a<<":\n";for(__i__=0;__i__<r;__i__++){for(__j__=0;__j__<c;__j__++){cout<<setw(l)<<setfill(' ')<<a[__i__][__j__]<<" ";}cout<<endl;}

// advanced debugging class
// debug 1,2,'A',"test";
class _Debug {
    public:
        template<typename T>
        _Debug& operator,(T val) {
            cout << val << endl;
            return *this;
        }
};
#define debug _Debug(),
#else
#define printLine(l)
#define printLine2(l,c)
#define printVar(n)
#define printArr(a,l)
#define print2dArr(a,r,c)
#define print2dArr2(a,r,c,l)
#define debug
#endif

// define
#define MAX_VAL 999999999
#define MAX_VAL_2 999999999999999999LL
#define EPS 1e-6
#define mp make_pair
#define pb push_back

// typedef
typedef unsigned int UI;
typedef long long int LLI;
typedef unsigned long long int ULLI;
typedef unsigned short int US;
typedef pair<int,int> pii;
typedef pair<LLI,LLI> plli;
typedef vector<int> vi;
typedef vector<LLI> vlli;
typedef vector<pii> vpii;
typedef vector<plli> vplli;

// ---------- END OF TEMPLATE ----------
#include "catdog.h"

int n;
vi adjList[100000];
int parent[100000],size[100000],depth[100000],heavy[100000];
int chain[100000],disc[100000],head[100000],tail[100000],csize[100000];
int c = 0,num = 0;
int curr[100000],dp[100000][2];
struct node { int cc,cd,dc,dd; };
node com(node a,node b) {
    if (a.cc == -1) return b;
    else if (b.cc == -1) return a;
    node c;
    c.cc = min(min(min(a.cc+b.cc,a.cd+b.dc),min(a.cd+b.cc,a.cc+b.dc)+1),(int) 1e9);
    c.cd = min(min(min(a.cc+b.cd,a.cd+b.dd),min(a.cd+b.cd,a.cc+b.dd)+1),(int) 1e9);
    c.dc = min(min(min(a.dc+b.cc,a.dd+b.dc),min(a.dd+b.cc,a.dc+b.dc)+1),(int) 1e9);
    c.dd = min(min(min(a.dc+b.cd,a.dd+b.dd),min(a.dd+b.cd,a.dc+b.dd)+1),(int) 1e9);
    return c;
}
node tree[1 << 18];
int build(int s,int e,int i) {
    if (s == e) {
        tree[i] = (node){0,(int) 1e9,(int) 1e9,0};
        return 0;
    }

    int mid = (s+e) / 2;
    build(s,mid,2*i+1),build(mid+1,e,2*i+2);
    tree[i] = com(tree[2*i+1],tree[2*i+2]);
    return 0;
}
int update(int s,int e,int ai,int i,int c,int d) {
    if ((s > ai) || (e < ai)) return 0;
    else if (s == e) {
        tree[i].cc += c,tree[i].dd += d;
        return 0;
    }

    int mid = (s+e) / 2;
    update(s,mid,ai,2*i+1,c,d),update(mid+1,e,ai,2*i+2,c,d);
    tree[i] = com(tree[2*i+1],tree[2*i+2]);
    return 0;
}
node query(int s,int e,int qs,int qe,int i) {
    if ((s > qe) || (e < qs)) return (node){-1,-1,-1,-1};
    else if ((s >= qs) && (e <= qe)) return tree[i];

    int mid = (s+e) / 2;
    return com(query(s,mid,qs,qe,2*i+1),query(mid+1,e,qs,qe,2*i+2));
}
pii query(int u) {
    node r = query(0,n-1,disc[head[chain[u]]],disc[tail[chain[u]]],0);
    int c = min(r.cc,r.cd),d = min(r.dc,r.dd);
    return mp(min(c,d+1),min(d,c+1));
}
int doDFS(int u,int p,int d) {
    int i;
    parent[u] = p,depth[u] = d,size[u] = 1,heavy[u] = -1;
    for (i = 0; i < adjList[u].size(); i++) {
        int v = adjList[u][i];
        if (v != p) {
            size[u] += doDFS(v,u,d+1);
            if ((heavy[u] == -1) || (size[v] > size[heavy[u]])) heavy[u] = v;
        }
    }
    return size[u];
}
int doHLD(int u,int p) {
    int i;
    chain[u] = c,disc[u] = num++;
    if (csize[c] == 0) head[c] = u;
    csize[c]++,tail[c] = u;
    if (heavy[u] != -1) doHLD(heavy[u],u);
    for (i = 0; i < adjList[u].size(); i++) {
        int v = adjList[u][i];
        if ((v != p) && (v != heavy[u])) c++,doHLD(v,u);
    }
    return 0;
}
void initialize(int N,vector<int> A,vector<int> B) {
    int i;
    n = N;
    for (i = 0; i < N-1; i++) {
        A[i]--,B[i]--;
        adjList[A[i]].pb(B[i]);
        adjList[B[i]].pb(A[i]);
    }
    doDFS(0,-1,0),doHLD(0,-1),build(0,N-1,0);
}
int update(int u,int c,int d) {
    while (u != -1) {
        pii a = query(u);
        update(0,n-1,disc[u],0,c,d);
        pii b = query(u);
        c = b.first-a.first,d = b.second-a.second;
        u = parent[head[chain[u]]];
    }
    return 0;
}
int cat(int v) {
    v--,curr[v] = 1,update(v,0,1e9);
    pii ans = query(0);
    return min(ans.first,ans.second);
}
int dog(int v) {
    v--,curr[v] = 2,update(v,1e9,0);
    pii ans = query(0);
    return min(ans.first,ans.second);
}
int neighbor(int v) {
    v--;
    if (curr[v] == 1) update(v,0,-1e9);
    else if (curr[v] == 2) update(v,-1e9,0);
    curr[v] = 0;
    pii ans = query(0);
    return min(ans.first,ans.second);
}

Compilation message

catdog.cpp: In function 'int doDFS(int, int, int)':
catdog.cpp:115:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i = 0; i < adjList[u].size(); i++) {
                 ~~^~~~~~~~~~~~~~~~~~~
catdog.cpp: In function 'int doHLD(int, int)':
catdog.cpp:130:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i = 0; i < adjList[u].size(); i++) {
                 ~~^~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 5 ms 2680 KB Output is correct
3 Correct 4 ms 2680 KB Output is correct
4 Correct 4 ms 2680 KB Output is correct
5 Correct 4 ms 2704 KB Output is correct
6 Correct 4 ms 2808 KB Output is correct
7 Correct 4 ms 2680 KB Output is correct
8 Correct 4 ms 2680 KB Output is correct
9 Correct 4 ms 2684 KB Output is correct
10 Correct 4 ms 2680 KB Output is correct
11 Correct 4 ms 2680 KB Output is correct
12 Correct 4 ms 2680 KB Output is correct
13 Correct 4 ms 2680 KB Output is correct
14 Correct 4 ms 2680 KB Output is correct
15 Correct 4 ms 2680 KB Output is correct
16 Correct 4 ms 2808 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 5 ms 2680 KB Output is correct
3 Correct 4 ms 2680 KB Output is correct
4 Correct 4 ms 2680 KB Output is correct
5 Correct 4 ms 2704 KB Output is correct
6 Correct 4 ms 2808 KB Output is correct
7 Correct 4 ms 2680 KB Output is correct
8 Correct 4 ms 2680 KB Output is correct
9 Correct 4 ms 2684 KB Output is correct
10 Correct 4 ms 2680 KB Output is correct
11 Correct 4 ms 2680 KB Output is correct
12 Correct 4 ms 2680 KB Output is correct
13 Correct 4 ms 2680 KB Output is correct
14 Correct 4 ms 2680 KB Output is correct
15 Correct 4 ms 2680 KB Output is correct
16 Correct 4 ms 2808 KB Output is correct
17 Correct 6 ms 2808 KB Output is correct
18 Correct 6 ms 2780 KB Output is correct
19 Correct 5 ms 2808 KB Output is correct
20 Correct 4 ms 2680 KB Output is correct
21 Correct 5 ms 2680 KB Output is correct
22 Correct 5 ms 2808 KB Output is correct
23 Correct 6 ms 3064 KB Output is correct
24 Correct 6 ms 2808 KB Output is correct
25 Correct 5 ms 2808 KB Output is correct
26 Correct 5 ms 2808 KB Output is correct
27 Correct 5 ms 2808 KB Output is correct
28 Correct 5 ms 2808 KB Output is correct
29 Correct 5 ms 2936 KB Output is correct
30 Correct 5 ms 2680 KB Output is correct
31 Correct 5 ms 2808 KB Output is correct
32 Correct 5 ms 2808 KB Output is correct

Subtask #3
62.0 / 62.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 2680 KB Output is correct
2 Correct 5 ms 2680 KB Output is correct
3 Correct 4 ms 2680 KB Output is correct
4 Correct 4 ms 2680 KB Output is correct
5 Correct 4 ms 2704 KB Output is correct
6 Correct 4 ms 2808 KB Output is correct
7 Correct 4 ms 2680 KB Output is correct
8 Correct 4 ms 2680 KB Output is correct
9 Correct 4 ms 2684 KB Output is correct
10 Correct 4 ms 2680 KB Output is correct
11 Correct 4 ms 2680 KB Output is correct
12 Correct 4 ms 2680 KB Output is correct
13 Correct 4 ms 2680 KB Output is correct
14 Correct 4 ms 2680 KB Output is correct
15 Correct 4 ms 2680 KB Output is correct
16 Correct 4 ms 2808 KB Output is correct
17 Correct 6 ms 2808 KB Output is correct
18 Correct 6 ms 2780 KB Output is correct
19 Correct 5 ms 2808 KB Output is correct
20 Correct 4 ms 2680 KB Output is correct
21 Correct 5 ms 2680 KB Output is correct
22 Correct 5 ms 2808 KB Output is correct
23 Correct 6 ms 3064 KB Output is correct
24 Correct 6 ms 2808 KB Output is correct
25 Correct 5 ms 2808 KB Output is correct
26 Correct 5 ms 2808 KB Output is correct
27 Correct 5 ms 2808 KB Output is correct
28 Correct 5 ms 2808 KB Output is correct
29 Correct 5 ms 2936 KB Output is correct
30 Correct 5 ms 2680 KB Output is correct
31 Correct 5 ms 2808 KB Output is correct
32 Correct 5 ms 2808 KB Output is correct
33 Correct 437 ms 10712 KB Output is correct
34 Correct 144 ms 10616 KB Output is correct
35 Correct 406 ms 9196 KB Output is correct
36 Correct 712 ms 16748 KB Output is correct
37 Correct 26 ms 6520 KB Output is correct
38 Correct 794 ms 17740 KB Output is correct
39 Correct 816 ms 17752 KB Output is correct
40 Correct 790 ms 17636 KB Output is correct
41 Correct 780 ms 17652 KB Output is correct
42 Correct 737 ms 17768 KB Output is correct
43 Correct 749 ms 17764 KB Output is correct
44 Correct 714 ms 17768 KB Output is correct
45 Correct 731 ms 17736 KB Output is correct
46 Correct 736 ms 17744 KB Output is correct
47 Correct 756 ms 17740 KB Output is correct
48 Correct 233 ms 15284 KB Output is correct
49 Correct 267 ms 17072 KB Output is correct
50 Correct 81 ms 6264 KB Output is correct
51 Correct 99 ms 8844 KB Output is correct
52 Correct 40 ms 5880 KB Output is correct
53 Correct 325 ms 15992 KB Output is correct
54 Correct 249 ms 9136 KB Output is correct
55 Correct 628 ms 14732 KB Output is correct
56 Correct 366 ms 10100 KB Output is correct
57 Correct 491 ms 15928 KB Output is correct
58 Correct 44 ms 8948 KB Output is correct
59 Correct 91 ms 7672 KB Output is correct
60 Correct 213 ms 16120 KB Output is correct
61 Correct 236 ms 16480 KB Output is correct
62 Correct 139 ms 14324 KB Output is correct
63 Correct 72 ms 11996 KB Output is correct
64 Correct 80 ms 13688 KB Output is correct
65 Correct 109 ms 20608 KB Output is correct
66 Correct 98 ms 7544 KB Output is correct
67 Correct 106 ms 16760 KB Output is correct
68 Correct 216 ms 21064 KB Output is correct
69 Correct 45 ms 4600 KB Output is correct
70 Correct 13 ms 3064 KB Output is correct
71 Correct 87 ms 11520 KB Output is correct
72 Correct 135 ms 19064 KB Output is correct
73 Correct 339 ms 24160 KB Output is correct
74 Correct 366 ms 20728 KB Output is correct
75 Correct 247 ms 24204 KB Output is correct
76 Correct 239 ms 22904 KB Output is correct
77 Correct 376 ms 21112 KB Output is correct