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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#578663#9319. Bull FarmxixixiWA 1ms5728kbC++141.9kb2024-09-20 20:42:242024-09-20 20:42:24

Judging History

你现在查看的是最新测评结果

  • [2024-09-20 20:42:24]
  • 评测
  • 测评结果:WA
  • 用时:1ms
  • 内存:5728kb
  • [2024-09-20 20:42:24]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
const int mxn=2e3+8;
int T,n,m1,m2,tot;
int h[mxn],temp[mxn],dp[mxn],vis[mxn],mp[mxn][mxn];
int pr[mxn];
int root(int x){
  return pr[x]=(pr[x]==x?x:root(pr[x]));}

struct Star{
 int to,w,nx; 
}star[mxn*mxn];

void add(int x,int y,int w){
  star[++tot].nx=h[x];
  star[tot].to=y;
  star[tot].w=w;
  h[x]=tot;}

bool bfs(int st,int ed,int lim){
  memset(vis,0,sizeof vis);
  queue<int>q;
  q.push(st);vis[st]=1;
  while(q.size()){
    int pre=q.front();q.pop();
    for(int i=h[pre];~i;i=star[i].nx){
      auto pto=star[i];
      if(pto.w>lim||vis[pto.to])continue;
      vis[pto.to]=1;q.push(pto.to);
      if(pto.to==ed)return 1;
    }
  }
  return vis[ed];
}

signed main(){
  ios::sync_with_stdio(0),cin.tie(0),cout.tie(0);
  cin >> T;
  while(T--){
    cin >> n >> m1 >> m2 ;
    for(int i=1;i<=n;i++)
    for(int j=1;j<=n;j++)
    mp[i][j]=0;
    for(int i=1;i<=n;i++)pr[i]=i;

    memset(h,-1,sizeof h);
    int from=0,to=0;tot=0;

    for(int i=1;i<=m1;i++){
      int sum = 0 ;  
      string s;cin >> s ;

      for(int j=0;j<n;j++){
        temp[j+1]=(s[j*2]-'0')*50+(s[j*2+1]-'0');dp[temp[j+1]]+=1;}

      for(int j=1;j<=n;j++){
      if(dp[j]==0)to=j;
      if(dp[j]==2)from=j;
      if(dp[j]){sum+=1,dp[j]=0;}}

      if(sum==n){
        for(int j=1;j<=n;j++){
          int k=temp[j];
        if(!mp[j][k]&&pr[j]!=pr[k])
        add(j,k,i),mp[j][k]=1,pr[j]=root(k);}}
      
      else if(sum==n-1)
      for(int j=1;j<=n;j++){
      if(temp[j]==from&&!mp[j][to]&&pr[j]!=pr[to])
      add(j,to,i),mp[j][to]=1,pr[j]=root(to);}
    }

    for(int i=1;i<=m2;i++){
      string s;cin >> s ;
      int from,to,lim;
      from=(s[0]-'0')*50+(s[1]-'0');
      to=(s[2]-'0')*50+(s[3]-'0');
      lim=(s[4]-'0')*50+(s[5]-'0');
      cout << bfs(from,to,lim);
    }
    cout << '\n';
  }
  return 0;
}

詳細信息

Test #1:

score: 0
Wrong Answer
time: 1ms
memory: 5728kb

input:

2
5 2 4
0305040201
0404040404
030300
020500
050102
020501
6 2 4
030603010601
010203060504
030202
060402
050602
060401

output:

1011
0000

result:

wrong answer 2nd lines differ - expected: '0100', found: '0000'