oj.uz

Submission #68883

# Submission time Handle Problem Language Result Execution time Memory
68883 2018-08-18T22:41:44 Z duality Amusement Park (JOI17_amusement_park) C++17
100 / 100
 64 ms 5480 KB 
#include <bits/stdc++.h>
using namespace std;
#define mp make_pair
#define pb push_back
typedef long long int LLI;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef vector<pii> vpii;
#include "Joi.h"

static int parent[10000];
int find(int n) {
    if (parent[n] != n) parent[n] = find(parent[n]);
    return parent[n];
}
static vi adjList[10000];
static int key[10000],nxt[10000],heavy[100000];
static int visited[10000];
static queue<int> Q;
static int doDFS(int u,int p) {
    int i;
    int m = 1,mv = -1;
    for (i = 0; i < adjList[u].size(); i++) {
        int v = adjList[u][i];
        if (v != p) {
            int r = doDFS(v,u);
            if (r+1 > m) m = r+1,mv = v;
        }
    }
    nxt[u] = mv;
    if (m == 60) {
        key[u] = 1;
        return 0;
    }
    else return m;
}
static int num = 0;
static int message[10000];
static int doDFS2(int u,int p,LLI X) {
    int i;
    if (num < 60) {
        MessageBoard(u,((X & (1LL << num)) > 0));
        message[u] = 1;
    }
    num++;
    if (heavy[u] != -1) doDFS2(heavy[u],u,X);
    for (i = 0; i < adjList[u].size(); i++) {
        int v = adjList[u][i];
        if ((v != p) && (v != heavy[u])) doDFS2(v,u,X);
    }
    return 0;
}
void Joi(int N,int M,int A[],int B[],long long int X,int T) {
    int i;
    for (i = 0; i < N; i++) parent[i] = i;
    for (i = 0; i < M; i++) {
        int pa = find(A[i]),pb = find(B[i]);
        if (pa != pb) {
            parent[pa] = pb;
            adjList[A[i]].pb(B[i]);
            adjList[B[i]].pb(A[i]);
        }
    }
    int e = 0,e2 = 0;
    Q.push(0);
    while (!Q.empty()) {
        int u = Q.front();
        Q.pop();

        e = u;
        for (i = 0; i < adjList[u].size(); i++) {
            int v = adjList[u][i];
            if (!visited[v]) {
                visited[v] = 1;
                Q.push(v);
            }
        }
    }
    fill(parent,parent+N,-1);
    fill(visited,visited+N,0);
    Q.push(e);
    while (!Q.empty()) {
        int u = Q.front();
        Q.pop();

        e2 = u;
        for (i = 0; i < adjList[u].size(); i++) {
            int v = adjList[u][i];
            if (!visited[v]) {
                visited[v] = 1;
                parent[v] = u;
                Q.push(v);
            }
        }
    }
    fill(heavy,heavy+N,-1);
    while (e2 != e) heavy[parent[e2]] = e2,e2 = parent[e2];
    int j,f = 0;
    doDFS(e,-1);
    for (i = 0; i < N; i++) {
        if (key[i]) {
            int u = i;
            for (j = 0; j < 60; j++) {
                MessageBoard(u,((X & (1LL << j)) > 0));
                message[u] = 1;
                u = nxt[u];
            }
            f = 1;
        }
    }
    if (!f) doDFS2(e,-1,X);
    for (i = 0; i < N; i++) {
        if (!message[i]) MessageBoard(i,0);
    }
}

#include <bits/stdc++.h>
using namespace std;
#define mp make_pair
#define pb push_back
typedef long long int LLI;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef vector<pii> vpii;
#include "Ioi.h"

static int parent[10000];
static int find(int n) {
    if (parent[n] != n) parent[n] = find(parent[n]);
    return parent[n];
}
static vi adjList[10000];
static int key[10000],nxt[10000],heavy[10000];
static int visited[10000];
static queue<int> Q;
static int doDFS(int u,int p) {
    int i;
    int m = 1,mv = -1;
    for (i = 0; i < adjList[u].size(); i++) {
        int v = adjList[u][i];
        if (v != p) {
            int r = doDFS(v,u);
            if (r+1 > m) m = r+1,mv = v;
        }
    }
    nxt[u] = mv;
    if (m == 60) {
        key[u] = 1;
        return 0;
    }
    else return m;
}
static int num = 0;
static int sub[10000];
static int doDFS2(int u,int p) {
    int i;
    if (num < 60) sub[u] = num;
    num++;
    if (heavy[u] != -1) doDFS2(heavy[u],u);
    for (i = 0; i < adjList[u].size(); i++) {
        int v = adjList[u][i];
        if ((v != p) && (v != heavy[u])) doDFS2(v,u);
    }
    return 0;
}
static int message[10000];
static int moveto(int s,int e,int N) {
    int i,u;
    fill(parent,parent+N,-1);
    Q.push(s);
    while (!Q.empty()) {
        u = Q.front();
        Q.pop();

        if (key[u]) break;
        for (i = 0; i < adjList[u].size(); i++) {
            int v = adjList[u][i];
            if ((v != s) && (parent[v] == -1)) {
                parent[v] = u;
                Q.push(v);
            }
        }
    }
    while (!Q.empty()) Q.pop();
    if (!key[u]) {
        u = e;
        vi path;
        while (u != -1) path.pb(u),u = parent[u];
        if (sub[path.back()] != -1) return path.back();
        for (i = (int) path.size()-2; i >= 0; i--) {
            message[path[i]] = Move(path[i]);
            if (sub[path[i]] != -1) return path[i];
        }
    }
    vi path;
    while (u != -1) path.pb(u),u = parent[u];
    for (i = (int) path.size()-2; i >= 0; i--) message[path[i]] = Move(path[i]);
    return path[0];
}
static LLI ans = 0;
static vi path;
static int xxx[10000];
static int doDFS0(int u,int e,int p) {
    int i;
    path.pb(u);
    if (u == e) return 1;
    for (i = 0; i < adjList[u].size(); i++) {
        int v = adjList[u][i];
        if (v != p) {
            if (doDFS0(v,e,u)) return 1;
        }
    }
    path.pop_back();
    return 0;
}
static int doDFS3(int u,int p) {
    int i;
    assert(sub[u] != -1);
    if (message[u]) ans |= (1LL << sub[u]);
    for (i = 0; i < adjList[u].size(); i++) {
        int v = adjList[u][i];
        if ((v != p) && !xxx[v] && (sub[v] != -1)) {
            message[v] = Move(v);
            doDFS3(v,u);
            Move(u);
        }
    }
    for (i = 0; i < adjList[u].size(); i++) {
        int v = adjList[u][i];
        if ((v != p) && xxx[v] && (sub[v] != -1)) {
            message[v] = Move(v);
            doDFS3(v,u);
        }
    }
    return 0;
}
long long int Ioi(int N,int M,int A[],int B[],int P,int V,int T) {
    int i;
    for (i = 0; i < N; i++) parent[i] = i;
    for (i = 0; i < M; i++) {
        int pa = find(A[i]),pb = find(B[i]);
        if (pa != pb) {
            parent[pa] = pb;
            adjList[A[i]].pb(B[i]);
            adjList[B[i]].pb(A[i]);
        }
    }
    int e = 0,e2 = 0;
    Q.push(0);
    while (!Q.empty()) {
        int u = Q.front();
        Q.pop();

        e = u;
        for (i = 0; i < adjList[u].size(); i++) {
            int v = adjList[u][i];
            if (!visited[v]) {
                visited[v] = 1;
                Q.push(v);
            }
        }
    }
    fill(parent,parent+N,-1);
    fill(visited,visited+N,0);
    Q.push(e);
    while (!Q.empty()) {
        int u = Q.front();
        Q.pop();

        e2 = u;
        for (i = 0; i < adjList[u].size(); i++) {
            int v = adjList[u][i];
            if (!visited[v]) {
                visited[v] = 1;
                parent[v] = u;
                Q.push(v);
            }
        }
    }
    fill(heavy,heavy+N,-1);
    while (e2 != e) heavy[parent[e2]] = e2,e2 = parent[e2];
    fill(sub,sub+N,-1);
    doDFS(e,-1),doDFS2(e,-1);
    fill(message,message+N,-1);
    message[P] = V;
    int d = moveto(P,e,N);
    if (key[d]) {
        LLI X = 0;
        int u = d;
        for (i = 0; i < 60; i++) {
            if (message[u]) X |= (1LL << i);
            u = nxt[u];
            if (i < 59) message[u] = Move(u);
        }
        return X;
    }
    else {
        doDFS0(d,e,-1);
        for (i = 0; i < path.size(); i++) xxx[path[i]] = 1;
        doDFS3(d,-1);
        return ans;
    }
}

Compilation message

Joi.cpp: In function 'int doDFS(int, int)':
Joi.cpp:23:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i = 0; i < adjList[u].size(); i++) {
                 ~~^~~~~~~~~~~~~~~~~~~
Joi.cpp: In function 'int doDFS2(int, int, LLI)':
Joi.cpp:47:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i = 0; i < adjList[u].size(); i++) {
                 ~~^~~~~~~~~~~~~~~~~~~
Joi.cpp: In function 'void Joi(int, int, int*, int*, long long int, int)':
Joi.cpp:71:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (i = 0; i < adjList[u].size(); i++) {
                     ~~^~~~~~~~~~~~~~~~~~~
Joi.cpp:87:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (i = 0; i < adjList[u].size(); i++) {
                     ~~^~~~~~~~~~~~~~~~~~~

Ioi.cpp: In function 'int doDFS(int, int)':
Ioi.cpp:23:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i = 0; i < adjList[u].size(); i++) {
                 ~~^~~~~~~~~~~~~~~~~~~
Ioi.cpp: In function 'int doDFS2(int, int)':
Ioi.cpp:44:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i = 0; i < adjList[u].size(); i++) {
                 ~~^~~~~~~~~~~~~~~~~~~
Ioi.cpp: In function 'int moveto(int, int, int)':
Ioi.cpp:60:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (i = 0; i < adjList[u].size(); i++) {
                     ~~^~~~~~~~~~~~~~~~~~~
Ioi.cpp: In function 'int doDFS0(int, int, int)':
Ioi.cpp:91:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i = 0; i < adjList[u].size(); i++) {
                 ~~^~~~~~~~~~~~~~~~~~~
Ioi.cpp: In function 'int doDFS3(int, int)':
Ioi.cpp:104:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i = 0; i < adjList[u].size(); i++) {
                 ~~^~~~~~~~~~~~~~~~~~~
Ioi.cpp:112:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (i = 0; i < adjList[u].size(); i++) {
                 ~~^~~~~~~~~~~~~~~~~~~
Ioi.cpp: In function 'long long int Ioi(int, int, int*, int*, int, int, int)':
Ioi.cpp:139:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (i = 0; i < adjList[u].size(); i++) {
                     ~~^~~~~~~~~~~~~~~~~~~
Ioi.cpp:155:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (i = 0; i < adjList[u].size(); i++) {
                     ~~^~~~~~~~~~~~~~~~~~~
Ioi.cpp:183:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (i = 0; i < path.size(); i++) xxx[path[i]] = 1;
                     ~~^~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 1348 KB Output is correct
2 Correct 6 ms 1432 KB Output is correct
3 Correct 6 ms 1512 KB Output is correct
4 Correct 6 ms 1644 KB Output is correct
5 Correct 6 ms 1796 KB Output is correct
6 Correct 5 ms 1896 KB Output is correct
7 Correct 6 ms 1952 KB Output is correct
8 Correct 5 ms 2008 KB Output is correct
9 Correct 5 ms 2008 KB Output is correct
10 Correct 4 ms 2008 KB Output is correct
11 Correct 8 ms 2144 KB Output is correct
12 Correct 5 ms 2144 KB Output is correct
13 Correct 6 ms 2144 KB Output is correct
14 Correct 6 ms 2144 KB Output is correct
15 Correct 6 ms 2144 KB Output is correct
16 Correct 5 ms 2144 KB Output is correct
17 Correct 6 ms 2144 KB Output is correct
18 Correct 6 ms 2144 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 4276 KB Output is correct
2 Correct 34 ms 4360 KB Output is correct
3 Correct 37 ms 4360 KB Output is correct
4 Correct 27 ms 4360 KB Output is correct
5 Correct 26 ms 5056 KB Output is correct
6 Correct 25 ms 5120 KB Output is correct
7 Correct 25 ms 5120 KB Output is correct
8 Correct 31 ms 5120 KB Output is correct
9 Correct 27 ms 5120 KB Output is correct
10 Correct 22 ms 5120 KB Output is correct
11 Correct 20 ms 5120 KB Output is correct
12 Correct 22 ms 5120 KB Output is correct
13 Correct 20 ms 5120 KB Output is correct
14 Correct 28 ms 5120 KB Output is correct
15 Correct 26 ms 5120 KB Output is correct
16 Correct 28 ms 5120 KB Output is correct
17 Correct 31 ms 5120 KB Output is correct
18 Correct 31 ms 5120 KB Output is correct
19 Correct 33 ms 5120 KB Output is correct
20 Correct 26 ms 5120 KB Output is correct
21 Correct 17 ms 5120 KB Output is correct
22 Correct 24 ms 5120 KB Output is correct
23 Correct 26 ms 5120 KB Output is correct
24 Correct 26 ms 5120 KB Output is correct
25 Correct 24 ms 5120 KB Output is correct
26 Correct 27 ms 5120 KB Output is correct
27 Correct 25 ms 5120 KB Output is correct
28 Correct 28 ms 5120 KB Output is correct
29 Correct 26 ms 5120 KB Output is correct
30 Correct 27 ms 5120 KB Output is correct
31 Correct 6 ms 5120 KB Output is correct
32 Correct 6 ms 5120 KB Output is correct
33 Correct 5 ms 5120 KB Output is correct
34 Correct 6 ms 5120 KB Output is correct
35 Correct 5 ms 5120 KB Output is correct
36 Correct 5 ms 5120 KB Output is correct
37 Correct 5 ms 5120 KB Output is correct
38 Correct 6 ms 5120 KB Output is correct
39 Correct 4 ms 5120 KB Output is correct
40 Correct 5 ms 5120 KB Output is correct
41 Correct 7 ms 5120 KB Output is correct
42 Correct 5 ms 5120 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5120 KB Output is correct
2 Correct 4 ms 5120 KB Output is correct
3 Correct 5 ms 5120 KB Output is correct
4 Correct 10 ms 5120 KB Output is correct
5 Correct 6 ms 5120 KB Output is correct
6 Correct 7 ms 5120 KB Output is correct
7 Correct 8 ms 5120 KB Output is correct
8 Correct 8 ms 5120 KB Output is correct
9 Correct 20 ms 5288 KB Output is correct
10 Correct 20 ms 5480 KB Output is correct
11 Correct 19 ms 5480 KB Output is correct
12 Correct 5 ms 5480 KB Output is correct
13 Correct 6 ms 5480 KB Output is correct
14 Correct 5 ms 5480 KB Output is correct
15 Correct 5 ms 5480 KB Output is correct

Subtask #4
55.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 5480 KB Output is correct
2 Correct 35 ms 5480 KB Output is correct
3 Correct 37 ms 5480 KB Output is correct
4 Correct 26 ms 5480 KB Output is correct
5 Correct 31 ms 5480 KB Output is correct
6 Correct 33 ms 5480 KB Output is correct
7 Correct 31 ms 5480 KB Output is correct
8 Correct 35 ms 5480 KB Output is correct
9 Correct 31 ms 5480 KB Output is correct
10 Correct 25 ms 5480 KB Output is correct
11 Correct 29 ms 5480 KB Output is correct
12 Correct 28 ms 5480 KB Output is correct
13 Correct 24 ms 5480 KB Output is correct
14 Correct 37 ms 5480 KB Output is correct
15 Correct 27 ms 5480 KB Output is correct
16 Correct 27 ms 5480 KB Output is correct
17 Correct 25 ms 5480 KB Output is correct
18 Correct 27 ms 5480 KB Output is correct
19 Correct 64 ms 5480 KB Output is correct
20 Correct 28 ms 5480 KB Output is correct
21 Correct 20 ms 5480 KB Output is correct
22 Correct 26 ms 5480 KB Output is correct
23 Correct 27 ms 5480 KB Output is correct
24 Correct 28 ms 5480 KB Output is correct
25 Correct 27 ms 5480 KB Output is correct
26 Correct 25 ms 5480 KB Output is correct
27 Correct 25 ms 5480 KB Output is correct
28 Correct 24 ms 5480 KB Output is correct
29 Correct 28 ms 5480 KB Output is correct
30 Correct 27 ms 5480 KB Output is correct

Subtask #5
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 5480 KB Output is correct
2 Correct 39 ms 5480 KB Output is correct
3 Correct 46 ms 5480 KB Output is correct
4 Correct 31 ms 5480 KB Output is correct
5 Correct 27 ms 5480 KB Output is correct
6 Correct 26 ms 5480 KB Output is correct
7 Correct 26 ms 5480 KB Output is correct
8 Correct 33 ms 5480 KB Output is correct
9 Correct 25 ms 5480 KB Output is correct
10 Correct 26 ms 5480 KB Output is correct
11 Correct 24 ms 5480 KB Output is correct
12 Correct 23 ms 5480 KB Output is correct
13 Correct 24 ms 5480 KB Output is correct
14 Correct 26 ms 5480 KB Output is correct
15 Correct 25 ms 5480 KB Output is correct
16 Correct 28 ms 5480 KB Output is correct
17 Correct 34 ms 5480 KB Output is correct
18 Correct 27 ms 5480 KB Output is correct
19 Correct 28 ms 5480 KB Output is correct
20 Correct 18 ms 5480 KB Output is correct
21 Correct 20 ms 5480 KB Output is correct
22 Correct 30 ms 5480 KB Output is correct
23 Correct 24 ms 5480 KB Output is correct
24 Correct 25 ms 5480 KB Output is correct
25 Correct 24 ms 5480 KB Output is correct
26 Correct 30 ms 5480 KB Output is correct
27 Correct 27 ms 5480 KB Output is correct
28 Correct 28 ms 5480 KB Output is correct
29 Correct 25 ms 5480 KB Output is correct
30 Correct 26 ms 5480 KB Output is correct
31 Correct 6 ms 5480 KB Output is correct
32 Correct 5 ms 5480 KB Output is correct
33 Correct 7 ms 5480 KB Output is correct
34 Correct 5 ms 5480 KB Output is correct
35 Correct 6 ms 5480 KB Output is correct
36 Correct 5 ms 5480 KB Output is correct
37 Correct 6 ms 5480 KB Output is correct
38 Correct 5 ms 5480 KB Output is correct
39 Correct 6 ms 5480 KB Output is correct
40 Correct 6 ms 5480 KB Output is correct
41 Correct 6 ms 5480 KB Output is correct
42 Correct 5 ms 5480 KB Output is correct