oj.uz

Submission #1110602

# Submission time Handle Problem Language Result Execution time Memory
1110602 2024-11-10T04:40:20 Z vjudge1 Traffic (CEOI11_tra) C++17
16 / 100
 960 ms 61140 KB 
#include "bits/stdc++.h"
#define ll long long
using namespace std;
const int N=5e5+1,mod=1e9+7;
vector<int>l,r;
vector<vector<int>>v(N),rev(N);
int n,m,A,B;
int x[N],y[N];
bool vis[N],removed[N];
void dfs(int idx){
    vis[idx]=1;
    for(auto i:v[idx])
        if(!vis[i] && !removed[i])
            dfs(i);
    
}
void del(int idx){
    vis[idx]=1;
    for(auto i:v[idx])
        if(!vis[i])
            del(i);
}
void delr(int idx){
    vis[idx]=1;
    for(auto i:rev[idx])
        if(!vis[i])
            delr(i);
}
int mx[N],mn[N];
int main(){
    cin>>n>>m>>A>>B;
    for(int i=1;i<=n;i++){
        cin>>x[i]>>y[i];
        if(x[i]==0)
            l.push_back(i);
        if(x[i]==A)
            r.push_back(i);
    }
    sort(l.begin(),l.end(),[](int i, int j){
       return y[i] < y[j]; 
    });
    sort(r.begin(),r.end(),[](int i, int j){
       return y[i] < y[j]; 
    });
    //reverse(l.begin(),l.end());
    while(m--){
        int d,c,k;
        cin>>c>>d>>k;
        v[c].push_back(d);
        rev[d].push_back(c);
        if(k==2){
            v[d].push_back(c);
            rev[c].push_back(d);
        }
    }
    for(auto i:l)
        del(i);
    for(int i=1;i<=n;i++)
        if(!vis[i])
            removed[i]=1;

    memset(vis,0,sizeof vis);
    for(auto i:r)
        delr(i);
    for(int i=1;i<=n;i++)
        if(!vis[i])
            removed[i]=1;
    for(int i=0;i<r.size();i++)
        if(removed[r[i]])
            r.erase(r.begin()+i);
    int szl=l.size(),szr=r.size();
    memset(vis,0,sizeof vis);
    int idx=0;
    for(int i=0;i<szl;i++){
        if(removed[l[i]])continue;
        dfs(l[i]);
        while(idx+1<szr && vis[r[idx+1]])
            idx++;
        mx[i]=idx;
    }
    memset(vis,0,sizeof vis);
    idx=r.size()-1;
    for(int i=szl-1;i>=0;i--){
        if(removed[l[i]])continue;
        dfs(l[i]);
        while(idx-1>=0 && vis[r[idx-1]])
            idx--;
        mn[i]=idx;
    }
    vector<int>ans;
    for(int i=0;i<szl;i++){
        if(removed[l[i]]) ans.push_back(0);
        else ans.push_back(mx[i]-mn[i]+1);
    }
    reverse(ans.begin(),ans.end());
    for(auto i:ans)cout<<i<<'\n';
    return 0;
}

Compilation message

tra.cpp: In function 'int main()':
tra.cpp:68:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   68 |     for(int i=0;i<r.size();i++)
      |                 ~^~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 32080 KB Output is correct
2 Correct 7 ms 32080 KB Output is correct
3 Correct 7 ms 32080 KB Output is correct
4 Correct 8 ms 27984 KB Output is correct
5 Correct 6 ms 30032 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 32080 KB Output is correct
2 Correct 6 ms 32088 KB Output is correct
3 Correct 7 ms 32080 KB Output is correct

Subtask #3
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 8 ms 32248 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 10 ms 32080 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 26 ms 32592 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 80 ms 34944 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 95 ms 35720 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 8.0

# Verdict Execution time Memory Grader output
1 Incorrect 145 ms 37520 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 240 ms 40084 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #10
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 401 ms 45748 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #11
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 960 ms 61140 KB Output is correct
2 Incorrect 530 ms 58140 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #12
0 / 9.0

# Verdict Execution time Memory Grader output
1 Incorrect 280 ms 40224 KB Output isn't correct
2 Halted 0 ms 0 KB -