oj.uz

Submission #68877

# Submission time Handle Problem Language Result Execution time Memory
68877 2018-08-18T20:57:31 Z duality Amusement Park (JOI17_amusement_park) C++14
81 / 100
 41 ms 5248 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++;
    for (i = 0; i < adjList[u].size(); i++) {
        int v = adjList[u][i];
        if ((v != p) && (v != heavy[u])) doDFS2(v,u,X);
    }
    if (heavy[u] != -1) doDFS2(heavy[u],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 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();
    vi path;
    if (!key[u]) u = e;
    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 int num = 0;
static LLI ans = 0;
static int doDFS2(int u,int p) {
    int i;
    if (num < 60) {
        if (message[u]) ans |= (1LL << num);
    }
    num++;
    for (i = 0; i < adjList[u].size(); i++) {
        int v = adjList[u][i];
        if ((v != p) && (v != heavy[u])) {
            if (num < 60) {
                message[v] = Move(v);
                doDFS2(v,u);
                if (num < 60) Move(u);
            }
        }
    }
    if (heavy[u] != -1) {
        if (num < 60) {
            message[heavy[u]] = Move(heavy[u]);
            doDFS2(heavy[u],u);
            if (num < 60) Move(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];
    doDFS(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 {
        doDFS2(e,-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:46:19: 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 moveto(int, int, int)':
Ioi.cpp:47:23: 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:70:19: 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:107:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         for (i = 0; i < adjList[u].size(); i++) {
                     ~~^~~~~~~~~~~~~~~~~~~
Ioi.cpp:123:23: 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 5 ms 1348 KB Output is correct
2 Correct 4 ms 1552 KB Output is correct
3 Correct 6 ms 1652 KB Output is correct
4 Correct 6 ms 1656 KB Output is correct
5 Correct 5 ms 1720 KB Output is correct
6 Correct 6 ms 1792 KB Output is correct
7 Correct 6 ms 1860 KB Output is correct
8 Correct 5 ms 1928 KB Output is correct
9 Correct 6 ms 1928 KB Output is correct
10 Correct 5 ms 1928 KB Output is correct
11 Correct 8 ms 2144 KB Output is correct
12 Correct 7 ms 2144 KB Output is correct
13 Correct 5 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 4 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 40 ms 4224 KB Output is correct
2 Correct 36 ms 4224 KB Output is correct
3 Correct 36 ms 4264 KB Output is correct
4 Correct 25 ms 4304 KB Output is correct
5 Correct 23 ms 5056 KB Output is correct
6 Correct 23 ms 5120 KB Output is correct
7 Correct 25 ms 5120 KB Output is correct
8 Correct 25 ms 5120 KB Output is correct
9 Correct 22 ms 5120 KB Output is correct
10 Correct 20 ms 5120 KB Output is correct
11 Correct 19 ms 5120 KB Output is correct
12 Correct 22 ms 5120 KB Output is correct
13 Correct 26 ms 5120 KB Output is correct
14 Correct 29 ms 5120 KB Output is correct
15 Correct 22 ms 5120 KB Output is correct
16 Correct 28 ms 5120 KB Output is correct
17 Correct 25 ms 5120 KB Output is correct
18 Correct 24 ms 5120 KB Output is correct
19 Correct 22 ms 5120 KB Output is correct
20 Correct 17 ms 5120 KB Output is correct
21 Correct 20 ms 5120 KB Output is correct
22 Correct 25 ms 5120 KB Output is correct
23 Correct 23 ms 5120 KB Output is correct
24 Correct 27 ms 5120 KB Output is correct
25 Correct 22 ms 5120 KB Output is correct
26 Correct 22 ms 5120 KB Output is correct
27 Correct 22 ms 5120 KB Output is correct
28 Correct 22 ms 5120 KB Output is correct
29 Correct 22 ms 5120 KB Output is correct
30 Correct 22 ms 5120 KB Output is correct
31 Correct 4 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 7 ms 5120 KB Output is correct
35 Correct 4 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 6 ms 5120 KB Output is correct
40 Correct 6 ms 5120 KB Output is correct
41 Correct 4 ms 5120 KB Output is correct
42 Correct 4 ms 5120 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 5120 KB Output is correct
2 Correct 5 ms 5120 KB Output is correct
3 Correct 5 ms 5120 KB Output is correct
4 Correct 6 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 7 ms 5120 KB Output is correct
8 Correct 6 ms 5120 KB Output is correct
9 Correct 17 ms 5248 KB Output is correct
10 Correct 17 ms 5248 KB Output is correct
11 Correct 19 ms 5248 KB Output is correct
12 Correct 4 ms 5248 KB Output is correct
13 Correct 4 ms 5248 KB Output is correct
14 Correct 4 ms 5248 KB Output is correct
15 Correct 5 ms 5248 KB Output is correct

Subtask #4
53.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 5248 KB Output is correct
2 Correct 35 ms 5248 KB Output is correct
3 Correct 34 ms 5248 KB Output is correct
4 Partially correct 24 ms 5248 KB Partially correct
5 Correct 27 ms 5248 KB Output is correct
6 Correct 26 ms 5248 KB Output is correct
7 Correct 26 ms 5248 KB Output is correct
8 Correct 23 ms 5248 KB Output is correct
9 Correct 25 ms 5248 KB Output is correct
10 Correct 22 ms 5248 KB Output is correct
11 Correct 20 ms 5248 KB Output is correct
12 Correct 20 ms 5248 KB Output is correct
13 Partially correct 25 ms 5248 KB Partially correct
14 Partially correct 27 ms 5248 KB Partially correct
15 Partially correct 27 ms 5248 KB Partially correct
16 Partially correct 27 ms 5248 KB Partially correct
17 Correct 26 ms 5248 KB Output is correct
18 Partially correct 27 ms 5248 KB Partially correct
19 Partially correct 30 ms 5248 KB Partially correct
20 Correct 27 ms 5248 KB Output is correct
21 Correct 27 ms 5248 KB Output is correct
22 Correct 30 ms 5248 KB Output is correct
23 Correct 30 ms 5248 KB Output is correct
24 Correct 24 ms 5248 KB Output is correct
25 Correct 30 ms 5248 KB Output is correct
26 Correct 36 ms 5248 KB Output is correct
27 Correct 30 ms 5248 KB Output is correct
28 Correct 26 ms 5248 KB Output is correct
29 Correct 37 ms 5248 KB Output is correct
30 Correct 25 ms 5248 KB Output is correct

Subtask #5
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 5248 KB Output is correct
2 Correct 38 ms 5248 KB Output is correct
3 Correct 41 ms 5248 KB Output is correct
4 Incorrect 27 ms 5248 KB Output isn't correct
5 Halted 0 ms 0 KB -