oj.uz

Submission #884074

# Submission time Handle Problem Language Result Execution time Memory
884074 2023-12-06T15:30:11 Z vjudge1 Cats or Dogs (JOI18_catdog) C++17
38 / 100
 3000 ms 15936 KB 
#include "catdog.h"
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast,unroll-loops")

using namespace std;


template<typename Node>
struct AINT {
    vector<Node> aint;
    int n;
    Node ID;
    void init(int _n, Node id) {
        ID = id;
        n = _n;
        aint.resize(n * 2 + 5, ID);

    }

    void upd(int p, Node x, int node, int cl, int cr) {
        if(p < cl || cr < p) return;
        if(cl == cr) { aint[node] = x; return; }
        int mid = cl + cr >> 1;
        push(node, (mid - cl + 1) * 2);
        upd(p, x, node + 1, cl, mid);
        upd(p, x, node + (mid - cl + 1) * 2, mid + 1, cr);
        aint[node] = aint[node + 1] + aint[node + (mid - cl + 1) * 2];
//        cerr << cl << ' ' << cr << " :: \t" << aint[node].mat[0][0] << ' ' << aint[node].mat[1][1] << '\n'
    }
    Node query(int l, int r, int node, int cl, int cr) {
        if(r < cl || cr < l) return ID;
        if(l <= cl && cr <= r) return aint[node];
        int mid = cl + cr >> 1;
        push(node, (mid - cl + 1) * 2);
        return query(l, r, node + 1, cl, mid) + query(l, r, node + (mid - cl + 1) * 2, mid + 1, cr);
    }

    void upd(int p, Node x) { upd(p, x, 1, 1, n); }
    Node query(int l, int r) { return query(l, r, 1, 1, n); }


    void push(int node, int L) {;}
};

const int nmax = 1e5 + 5;
const int inf = 1e6 + 5;

namespace Tree {
    vector<int> g[nmax];

    int area[nmax];
    int pch[nmax], lastpoz[nmax], p[nmax];
    int pin[nmax], pout[nmax], inp = 1;

    int nodepoz(int node) { return pin[node];}

    namespace Init {
        void preinit(int node, int f) {
            p[node] = f;
            area[node] = 1;
            for(auto x : g[node]) {
                if(x == f) continue;
                preinit(x, node);
                area[node] += area[x];
            }
            return;
        }

        void init(int node, int f) {
            lastpoz[pch[node]] = inp;
            pin[node] = inp++;
            int mx = -1;
            for(auto x : g[node]) {
                if(x == f) continue;
                mx = mx == -1 || area[mx] < area[x]? x : mx;
            }
            if(mx == -1) {pout[node] = inp - 1; return; }
            pch[mx] = pch[node];
            init(mx, node);

            for(auto x : g[node]) {
               if(x == f || x == mx) continue;
               pch[x] = x;
               init(x, node);
            }
        }
    }

    struct Mat {
        int mat[2][2];
        Mat() { for(int i = 0; i < 2; i++) for(int j = 0; j < 2; j++) mat[i][j] = inf; }
        Mat operator +(const Mat& x) const {
            if(mat[0][0] == 0 && mat[1][1] == 0 && mat[0][1] == inf && mat[1][0] == inf) return x;
            if(x.mat[0][0] == 0 && x.mat[1][1] == 0 && x.mat[0][1] == inf && x.mat[1][0] == inf) return *this;
//            if(x == ok) return *this;
            Mat rez;

            for(int L = 0; L < 2; L++) {
                for(int M1 = 0; M1 < 2; M1++) {
                        for(int R = 0; R < 2; R++) {
                            rez.mat[L][R] = min(rez.mat[L][R], mat[L][M1] + min(x.mat[M1][R], x.mat[M1 ^ 1][R] + 1));
                        }
                    }
            }

            return rez;
        }
    };
                Mat ok;


    AINT<Mat> aint;

    struct SimpleDir {
        int red, blue;
        SimpleDir(int a = 0, int b = 0): red(a), blue(b) {;}
        SimpleDir operator +=(const SimpleDir& x) { return *this = SimpleDir(red + min(x.red, x.blue + 1), blue + min(x.blue, x.red + 1)); }
        SimpleDir operator -=(const SimpleDir& x) { return *this = SimpleDir(red - min(x.red, x.blue + 1), blue - min(x.blue, x.red + 1)); }
    };

    SimpleDir overson[nmax], mine[nmax];

    int color[nmax];

    Mat red(int node) {
        Mat curr;
        curr.mat[0][0] = overson[node].red;
        return curr;
    }

    Mat blue(int node) {
        Mat curr;
        curr.mat[1][1] = overson[node].blue;
        return curr;
    }

    Mat gol(int node) {
        Mat curr;
        curr.mat[0][0] = overson[node].red;
        curr.mat[1][1] = overson[node].blue;
        return curr;
    }

    void init(int node, int f) {
        aint.upd(nodepoz(node), gol(node));
        for(auto x : g[node])
            if(x != f)
                init(x, node);
        return;
    }

    void init(int n) {
        ok.mat[0][0] = 0;
        ok.mat[1][1] = 0;
        aint.init(n, ok);
//        init(0, 0);
    }

    int upd(int node) {
        int father = pch[node];
        aint.upd(nodepoz(node), color[node] == 0? gol(node) : color[node] == 1? red(node) : blue(node));

        if(father == 0) { auto R = aint.query(pin[father], lastpoz[father]); return min({R.mat[0][0],R.mat[0][1],R.mat[1][0],R.mat[1][1]});}

        overson[p[father]] -= mine[father];
        auto R = aint.query(pin[father], lastpoz[father]);
        mine[father] = SimpleDir(min(R.mat[0][0], R.mat[0][1]), min(R.mat[1][0], R.mat[1][1]));
        if(color[father] == 1) mine[father].blue = inf;
        if(color[father] == 2) mine[father].red = inf;

        overson[p[father]] += mine[father];

        return upd(p[node]);
    }
}

void initialize(int n, std::vector<int> A, std::vector<int> B) {
    for(int i = 0; i < n - 1; i++) {
        Tree::g[--A[i]].emplace_back(--B[i]);
        Tree::g[B[i]].emplace_back(A[i]);
    }

    Tree::Init::preinit(0, 0);
    Tree::pch[0];
    Tree::Init::init(0, 0);

    Tree::init(n);

    return;
}

int cat(int v) {
    Tree::color[--v] = 1;
  return Tree::upd(v);
}

int dog(int v) {
    Tree::color[--v] = 2;
  return Tree::upd(v);
}

int neighbor(int v) {
    Tree::color[--v] = 0;
  return Tree::upd(v);
}

Compilation message

catdog.cpp: In function 'void initialize(int, std::vector<int>, std::vector<int>)':
catdog.cpp:184:16: warning: statement has no effect [-Wunused-value]
  184 |     Tree::pch[0];
      |     ~~~~~~~~~~~^
catdog.cpp: In instantiation of 'void AINT<Node>::upd(int, Node, int, int, int) [with Node = Tree::Mat]':
catdog.cpp:38:34:   required from 'void AINT<Node>::upd(int, Node) [with Node = Tree::Mat]'
catdog.cpp:145:42:   required from here
catdog.cpp:23:22: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   23 |         int mid = cl + cr >> 1;
      |                   ~~~^~~~
catdog.cpp: In instantiation of 'Node AINT<Node>::query(int, int, int, int, int) [with Node = Tree::Mat]':
catdog.cpp:39:44:   required from 'Node AINT<Node>::query(int, int) [with Node = Tree::Mat]'
catdog.cpp:163:75:   required from here
catdog.cpp:33:22: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   33 |         int mid = cl + cr >> 1;
      |                   ~~~^~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6748 KB Output is correct
2 Correct 2 ms 6748 KB Output is correct
3 Correct 1 ms 6748 KB Output is correct
4 Correct 1 ms 6748 KB Output is correct
5 Correct 2 ms 6748 KB Output is correct
6 Correct 1 ms 6748 KB Output is correct
7 Correct 1 ms 6748 KB Output is correct
8 Correct 2 ms 6748 KB Output is correct
9 Correct 1 ms 6748 KB Output is correct
10 Correct 1 ms 6748 KB Output is correct
11 Correct 2 ms 6744 KB Output is correct
12 Correct 2 ms 6744 KB Output is correct
13 Correct 2 ms 7000 KB Output is correct
14 Correct 2 ms 6744 KB Output is correct
15 Correct 2 ms 6748 KB Output is correct
16 Correct 1 ms 6748 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6748 KB Output is correct
2 Correct 2 ms 6748 KB Output is correct
3 Correct 1 ms 6748 KB Output is correct
4 Correct 1 ms 6748 KB Output is correct
5 Correct 2 ms 6748 KB Output is correct
6 Correct 1 ms 6748 KB Output is correct
7 Correct 1 ms 6748 KB Output is correct
8 Correct 2 ms 6748 KB Output is correct
9 Correct 1 ms 6748 KB Output is correct
10 Correct 1 ms 6748 KB Output is correct
11 Correct 2 ms 6744 KB Output is correct
12 Correct 2 ms 6744 KB Output is correct
13 Correct 2 ms 7000 KB Output is correct
14 Correct 2 ms 6744 KB Output is correct
15 Correct 2 ms 6748 KB Output is correct
16 Correct 1 ms 6748 KB Output is correct
17 Correct 3 ms 7004 KB Output is correct
18 Correct 3 ms 6920 KB Output is correct
19 Correct 3 ms 6748 KB Output is correct
20 Correct 2 ms 6748 KB Output is correct
21 Correct 2 ms 6748 KB Output is correct
22 Correct 2 ms 6748 KB Output is correct
23 Correct 4 ms 7004 KB Output is correct
24 Correct 3 ms 7004 KB Output is correct
25 Correct 3 ms 6748 KB Output is correct
26 Correct 2 ms 6748 KB Output is correct
27 Correct 3 ms 6748 KB Output is correct
28 Correct 3 ms 7004 KB Output is correct
29 Correct 3 ms 7004 KB Output is correct
30 Correct 2 ms 6748 KB Output is correct
31 Correct 2 ms 7004 KB Output is correct
32 Correct 2 ms 6748 KB Output is correct

Subtask #3
0 / 62.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6748 KB Output is correct
2 Correct 2 ms 6748 KB Output is correct
3 Correct 1 ms 6748 KB Output is correct
4 Correct 1 ms 6748 KB Output is correct
5 Correct 2 ms 6748 KB Output is correct
6 Correct 1 ms 6748 KB Output is correct
7 Correct 1 ms 6748 KB Output is correct
8 Correct 2 ms 6748 KB Output is correct
9 Correct 1 ms 6748 KB Output is correct
10 Correct 1 ms 6748 KB Output is correct
11 Correct 2 ms 6744 KB Output is correct
12 Correct 2 ms 6744 KB Output is correct
13 Correct 2 ms 7000 KB Output is correct
14 Correct 2 ms 6744 KB Output is correct
15 Correct 2 ms 6748 KB Output is correct
16 Correct 1 ms 6748 KB Output is correct
17 Correct 3 ms 7004 KB Output is correct
18 Correct 3 ms 6920 KB Output is correct
19 Correct 3 ms 6748 KB Output is correct
20 Correct 2 ms 6748 KB Output is correct
21 Correct 2 ms 6748 KB Output is correct
22 Correct 2 ms 6748 KB Output is correct
23 Correct 4 ms 7004 KB Output is correct
24 Correct 3 ms 7004 KB Output is correct
25 Correct 3 ms 6748 KB Output is correct
26 Correct 2 ms 6748 KB Output is correct
27 Correct 3 ms 6748 KB Output is correct
28 Correct 3 ms 7004 KB Output is correct
29 Correct 3 ms 7004 KB Output is correct
30 Correct 2 ms 6748 KB Output is correct
31 Correct 2 ms 7004 KB Output is correct
32 Correct 2 ms 6748 KB Output is correct
33 Correct 1199 ms 11768 KB Output is correct
34 Correct 275 ms 12116 KB Output is correct
35 Correct 718 ms 10644 KB Output is correct
36 Correct 2080 ms 15056 KB Output is correct
37 Correct 18 ms 9308 KB Output is correct
38 Correct 2398 ms 15876 KB Output is correct
39 Correct 2318 ms 15892 KB Output is correct
40 Correct 2413 ms 15880 KB Output is correct
41 Correct 2585 ms 15880 KB Output is correct
42 Correct 1822 ms 15888 KB Output is correct
43 Correct 1660 ms 15880 KB Output is correct
44 Correct 1412 ms 15936 KB Output is correct
45 Correct 1878 ms 15880 KB Output is correct
46 Correct 1879 ms 15876 KB Output is correct
47 Correct 2184 ms 15876 KB Output is correct
48 Correct 87 ms 13436 KB Output is correct
49 Correct 98 ms 14960 KB Output is correct
50 Correct 35 ms 8732 KB Output is correct
51 Correct 56 ms 10164 KB Output is correct
52 Correct 18 ms 8536 KB Output is correct
53 Correct 908 ms 14928 KB Output is correct
54 Correct 603 ms 10476 KB Output is correct
55 Correct 1594 ms 13228 KB Output is correct
56 Correct 1079 ms 11220 KB Output is correct
57 Correct 1119 ms 14364 KB Output is correct
58 Correct 19 ms 10200 KB Output is correct
59 Correct 35 ms 9816 KB Output is correct
60 Correct 90 ms 14024 KB Output is correct
61 Correct 112 ms 14392 KB Output is correct
62 Correct 68 ms 12752 KB Output is correct
63 Execution timed out 3023 ms 13660 KB Time limit exceeded
64 Halted 0 ms 0 KB -