oj.uz

답안 #590654

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
590654 2022-07-06T08:11:21 Z 조영욱(#8414) Amusement Park (JOI17_amusement_park) C++14
28 / 100
 20 ms 4048 KB 
#include "Joi.h"
#include <bits/stdc++.h>
using namespace std;

int n,m;
long long x;
int t;
int arr[10000];
int p[10000];
vector<int> adj[10000];
typedef pair<int,int> P;
int dist[10000];

int find(int a) {
    return p[a]<0?a:p[a]=find(p[a]);
}

void merge(int a,int b) {
    a=find(a);
    b=find(b);
    if (a==b) {
        return;
    }
    p[b]=a;
}

P longest() {
    memset(dist,-1,sizeof(dist));
    queue<int> q;
    q.push(0);
    dist[0]=0;
    while (!q.empty()) {
        int now=q.front();
        q.pop();
        for(int i=0;i<adj[now].size();i++) {
            int nt=adj[now][i];
            if (dist[nt]==-1) {
                dist[nt]=dist[now]+1;
                q.push(nt);
            }
        }
    }
    int pos=0;
    for(int i=1;i<n;i++) {
        if (dist[i]>dist[pos]) {
            pos=i;
        }
    }
    memset(dist,-1,sizeof(dist));
    dist[pos]=0;
    q.push(pos);
    while (!q.empty()) {
        int now=q.front();
        q.pop();
        for(int i=0;i<adj[now].size();i++) {
            int nt=adj[now][i];
            if (dist[nt]==-1) {
                dist[nt]=dist[now]+1;
                q.push(nt);
            }
        }
    }
    int pos1=0;
    for(int i=1;i<n;i++) {
        if (dist[i]>dist[pos1]) {
            pos1=i;
        }
    }
    return P(pos,dist[pos1]);
}

int f=0;

void dfs0(int v,int d,int prev) {
    int now=d%60;
    if (x&(1LL<<now)) {
        MessageBoard(v,1);
    }
    else {
        MessageBoard(v,0);
    }
    for(int i=0;i<adj[v].size();i++) {
        int nt=adj[v][i];
        if (nt==prev) {
            continue;
        }
        //assert(nt==v-1);
        dfs0(nt,d+1,v);
    }
}

void dfs1(int v,int prev) {
    int now=f%60;
    if (x&(1LL<<now)) {
        MessageBoard(v,1);
    }
    else {
        MessageBoard(v,0);
    }
    f++;
    for(int i=0;i<adj[v].size();i++) {
        int nt=adj[v][i];
        if (nt==prev) {
            continue;
        }
        dfs1(nt,v);
    }
}

void Joi(int N, int M, int A[], int B[], long long X, int T) {
    n=N;
    m=M;
    x=X;
    t=T;
    memset(p,-1,sizeof(p));
    for(int i=0;i<m;i++) {
        if (find(A[i])!=find(B[i])) {
            adj[A[i]].push_back(B[i]);
            adj[B[i]].push_back(A[i]);
            merge(A[i],B[i]);
        }
    }
    dfs1(0,-1);
}

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

int n;
int m;
int st,val,t;
int p[10000];
vector<int> adj[10000];
int dist[10000];
typedef pair<int,int> P;

int find(int a) {
    return p[a]<0?a:p[a]=find(p[a]);
}

void merge(int a,int b) {
    a=find(a);
    b=find(b);
    if (a==b) {
        return;
    }
    p[b]=a;
}

P longest() {
    memset(dist,-1,sizeof(dist));
    queue<int> q;
    q.push(0);
    dist[0]=0;
    while (!q.empty()) {
        int now=q.front();
        q.pop();
        for(int i=0;i<adj[now].size();i++) {
            int nt=adj[now][i];
            if (dist[nt]==-1) {
                dist[nt]=dist[now]+1;
                q.push(nt);
            }
        }
    }
    int pos=0;
    for(int i=1;i<n;i++) {
        if (dist[i]>dist[pos]) {
            pos=i;
        }
    }
    memset(dist,-1,sizeof(dist));
    dist[pos]=0;
    q.push(pos);
    while (!q.empty()) {
        int now=q.front();
        q.pop();
        for(int i=0;i<adj[now].size();i++) {
            int nt=adj[now][i];
            if (dist[nt]==-1) {
                dist[nt]=dist[now]+1;
                q.push(nt);
            }
        }
    }
    int pos1=0;
    for(int i=1;i<n;i++) {
        if (dist[i]>dist[pos1]) {
            pos1=i;
        }
    }
    return P(pos,dist[pos1]);
}

int par[10000];
int dep[10000];
int ind[10000];
int rev[10000];
int sz[10000];
int md[10000];
int f=0;

void dfs(int v,int prev) {
    par[v]=prev;
    md[v]=dep[v];
    sz[v]=1;
    ind[v]=f++;
    rev[ind[v]]=v;
    for(int i=0;i<adj[v].size();i++) {
        int nt=adj[v][i];
        if (nt!=prev) {
            dep[nt]=dep[v]+1;
            dfs(nt,v);
            md[v]=max(md[v],md[nt]);
            sz[v]+=sz[nt];
        }
    }
}

bool need[10000];
long long chk[60];

void dfs1(int v,int prev) {
    chk[ind[v]%60]=val;
    for(int i=0;i<adj[v].size();i++) {
        int nt=adj[v][i];
        if (nt==prev||!need[nt]) {
            continue;
        }
        val=Move(nt);
        dfs1(nt,v);
        val=Move(v);
    }
}

long long Ioi(int N, int M, int A[], int B[], int PP, int V, int T) {
    n=N;
    m=M;
    st=PP;
    val=V;
    t=T;
    memset(p,-1,sizeof(p));
    for(int i=0;i<m;i++) {
        if (find(A[i])!=find(B[i])) {
            adj[A[i]].push_back(B[i]);
            adj[B[i]].push_back(A[i]);
            merge(A[i],B[i]);
        }
    }
    dfs(0,-1);
    int now=st;
    int pr=-1;
    while (sz[now]<60) {
        pr=now;
        now=par[now];
    }
    need[now]=true;
    int l=ind[now];
    int r=ind[now]+sz[now]-1;
    int vst=0;
    if (pr==-1) {
        vst=l;
    }
    else {
        int ll=ind[pr];
        int rr=ind[pr]+sz[pr]-1;
        while (rr-ll<59) {
            if (ll!=l) {
                ll--;
            }
            else if (rr!=r) {
                rr++;
            }
        }
        vst=ll;
    }
    for(int i=vst;i<vst+60;i++) {
        need[rev[i]]=true;
        int v=rev[i];
        while (v!=now) {
            v=par[v];
            need[v]=true;
        }
    }
    dfs1(st,-1);
    long long ret=0;
    for(int i=0;i<60;i++) {
        ret+=(chk[i]<<i);
    }
    return ret;
}

Compilation message

Joi.cpp: In function 'P longest()':
Joi.cpp:35:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   35 |         for(int i=0;i<adj[now].size();i++) {
      |                     ~^~~~~~~~~~~~~~~~
Joi.cpp:55:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |         for(int i=0;i<adj[now].size();i++) {
      |                     ~^~~~~~~~~~~~~~~~
Joi.cpp: In function 'void dfs0(int, int, int)':
Joi.cpp:82:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   82 |     for(int i=0;i<adj[v].size();i++) {
      |                 ~^~~~~~~~~~~~~~
Joi.cpp: In function 'void dfs1(int, int)':
Joi.cpp:101:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  101 |     for(int i=0;i<adj[v].size();i++) {
      |                 ~^~~~~~~~~~~~~~

Ioi.cpp: In function 'P longest()':
Ioi.cpp:34:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   34 |         for(int i=0;i<adj[now].size();i++) {
      |                     ~^~~~~~~~~~~~~~~~
Ioi.cpp:54:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |         for(int i=0;i<adj[now].size();i++) {
      |                     ~^~~~~~~~~~~~~~~~
Ioi.cpp: In function 'void dfs(int, int)':
Ioi.cpp:85:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   85 |     for(int i=0;i<adj[v].size();i++) {
      |                 ~^~~~~~~~~~~~~~
Ioi.cpp: In function 'void dfs1(int, int)':
Ioi.cpp:101:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  101 |     for(int i=0;i<adj[v].size();i++) {
      |                 ~^~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 1288 KB Output is correct
2 Correct 1 ms 1280 KB Output is correct
3 Correct 2 ms 1284 KB Output is correct
4 Correct 1 ms 1288 KB Output is correct
5 Correct 1 ms 1288 KB Output is correct
6 Correct 0 ms 1276 KB Output is correct
7 Correct 1 ms 1296 KB Output is correct
8 Correct 1 ms 1292 KB Output is correct
9 Correct 2 ms 1284 KB Output is correct
10 Correct 0 ms 1288 KB Output is correct
11 Correct 3 ms 1464 KB Output is correct
12 Correct 0 ms 1280 KB Output is correct
13 Correct 2 ms 1284 KB Output is correct
14 Correct 2 ms 1284 KB Output is correct
15 Correct 2 ms 1280 KB Output is correct
16 Correct 2 ms 1236 KB Output is correct
17 Correct 2 ms 1284 KB Output is correct
18 Correct 1 ms 1292 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 3412 KB Output is correct
2 Correct 19 ms 3484 KB Output is correct
3 Correct 20 ms 3356 KB Output is correct
4 Correct 12 ms 2880 KB Output is correct
5 Correct 12 ms 3392 KB Output is correct
6 Correct 12 ms 3140 KB Output is correct
7 Correct 15 ms 3272 KB Output is correct
8 Correct 13 ms 3260 KB Output is correct
9 Correct 15 ms 3276 KB Output is correct
10 Correct 14 ms 2884 KB Output is correct
11 Correct 11 ms 2944 KB Output is correct
12 Correct 11 ms 2680 KB Output is correct
13 Correct 11 ms 2732 KB Output is correct
14 Correct 12 ms 2832 KB Output is correct
15 Correct 12 ms 2756 KB Output is correct
16 Correct 12 ms 2756 KB Output is correct
17 Correct 12 ms 2768 KB Output is correct
18 Correct 15 ms 2844 KB Output is correct
19 Correct 14 ms 2728 KB Output is correct
20 Correct 11 ms 3400 KB Output is correct
21 Correct 11 ms 3400 KB Output is correct
22 Correct 12 ms 3140 KB Output is correct
23 Correct 12 ms 3288 KB Output is correct
24 Correct 13 ms 3172 KB Output is correct
25 Correct 13 ms 3112 KB Output is correct
26 Correct 16 ms 3268 KB Output is correct
27 Correct 13 ms 3232 KB Output is correct
28 Correct 14 ms 3400 KB Output is correct
29 Correct 13 ms 3120 KB Output is correct
30 Correct 12 ms 3168 KB Output is correct
31 Correct 1 ms 1288 KB Output is correct
32 Correct 2 ms 1280 KB Output is correct
33 Correct 2 ms 1296 KB Output is correct
34 Correct 2 ms 1288 KB Output is correct
35 Correct 2 ms 1288 KB Output is correct
36 Correct 2 ms 1280 KB Output is correct
37 Correct 1 ms 1280 KB Output is correct
38 Correct 1 ms 1288 KB Output is correct
39 Correct 2 ms 1288 KB Output is correct
40 Correct 1 ms 1280 KB Output is correct
41 Correct 1 ms 1280 KB Output is correct
42 Correct 1 ms 1280 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 1280 KB Output is correct
2 Correct 2 ms 1280 KB Output is correct
3 Correct 1 ms 1292 KB Output is correct
4 Correct 2 ms 1696 KB Output is correct
5 Correct 3 ms 1700 KB Output is correct
6 Correct 2 ms 1696 KB Output is correct
7 Correct 3 ms 1700 KB Output is correct
8 Correct 2 ms 1700 KB Output is correct
9 Correct 10 ms 3932 KB Output is correct
10 Correct 11 ms 4016 KB Output is correct
11 Correct 10 ms 4048 KB Output is correct
12 Correct 1 ms 1288 KB Output is correct
13 Correct 1 ms 1292 KB Output is correct
14 Correct 2 ms 1280 KB Output is correct
15 Correct 2 ms 1288 KB Output is correct

Subtask #4
0.0 / 55.0

# 결과 실행 시간 메모리 Grader output
1 Correct 19 ms 3404 KB Output is correct
2 Partially correct 20 ms 3396 KB Partially correct
3 Correct 20 ms 3420 KB Output is correct
4 Correct 13 ms 2788 KB Output is correct
5 Correct 12 ms 3776 KB Output is correct
6 Correct 12 ms 3276 KB Output is correct
7 Correct 12 ms 3268 KB Output is correct
8 Correct 13 ms 3160 KB Output is correct
9 Correct 12 ms 3220 KB Output is correct
10 Correct 10 ms 2884 KB Output is correct
11 Correct 12 ms 2892 KB Output is correct
12 Correct 12 ms 2708 KB Output is correct
13 Correct 11 ms 2668 KB Output is correct
14 Partially correct 11 ms 2804 KB Partially correct
15 Partially correct 12 ms 2872 KB Partially correct
16 Partially correct 12 ms 2764 KB Partially correct
17 Correct 12 ms 2768 KB Output is correct
18 Correct 13 ms 2748 KB Output is correct
19 Correct 13 ms 2760 KB Output is correct
20 Incorrect 12 ms 3392 KB Output isn't correct
21 Halted 0 ms 0 KB -

Subtask #5
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 20 ms 3396 KB Output is correct
2 Incorrect 20 ms 3508 KB Output isn't correct
3 Halted 0 ms 0 KB -