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Submission #1020346

# Submission time Handle Problem Language Result Execution time Memory
1020346 2024-07-12T00:47:07 Z vjudge1 Flood (IOI07_flood) C++17
0 / 100
 2000 ms 40100 KB 
#include<bits/stdc++.h>
using namespace std;
int X[100100],Y[100100],vis[400100],lev[400100],side[100100][4][2],Xof[400100];
vector<pair<int,int>> adj[400100];
void AE(int a,int b,int c){
    adj[a].push_back({b,c});
    adj[b].push_back({a,c});
}
set<pair<int,int>>st;
int main(){
    cin.tie(0)->sync_with_stdio(0);
    int n,w;
    cin>>n;
    for(int i=1;i<=n;i++)
        cin>>X[i]>>Y[i];
    cin>>w;
    for(int i=1;i<=w;i++){
        int a,b;
        cin>>a>>b;
        if(X[a]==X[b]){
            if(Y[a]>Y[b])swap(a,b);
            side[a][2][1]=i;
            side[a][2][0]=i+w;
            side[b][0][0]=i;
            side[b][0][1]=i+w;
            Xof[i]=X[a];
        } else {
            if(X[a]>X[b])swap(a,b);
            side[a][1][0]=i;
            side[a][1][1]=i+w;
            side[b][3][1]=i;
            side[b][3][0]=i+w;
            Xof[i]=1e9;
        }
        st.insert({Xof[i],i});
        AE(i,i+w,1);
    }
    for(int i=1;i<=n;i++)
        for(int j=0;j<4;j++) if(side[i][j][1])
            for(int k=(j+1)%4;;k=(k+1)%4) if(side[i][k][0]){
                AE(side[i][k][0],side[i][j][1],0);break;}
    priority_queue<pair<int,int>,vector<pair<int,int>>,greater<>>Q;
    memset(lev,7,sizeof lev);
    while(1){
        if(st.empty())break;
        int K=st.begin()->first;
        Q.push({0,K});
        lev[K]=0;
        while(Q.size()){
            auto[y,x]=Q.top(); Q.pop();
            if(vis[x])continue;
            if(x<=w)st.erase({Xof[x],x});
            vis[x]=1;
            for(auto[i,j]:adj[x])
                if(lev[i]>y+j)
                    Q.push({lev[i]=y+j,i});
        }
    }
    vector<int>v;
    for(int i=1;i<=w;i++)
        if(lev[i]==lev[i+w])
            v.push_back(i);
    cout<<v.size()<<'\n';
    for(auto i:v)
        cout<<i<<'\n';
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2027 ms 14424 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2069 ms 12380 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 14428 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 3.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2053 ms 14424 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2063 ms 12380 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 3.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 14424 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 3.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2045 ms 12380 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #8
0 / 3.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2039 ms 12376 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #9
0 / 3.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2044 ms 14428 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #10
0 / 9.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2050 ms 16728 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #11
0 / 9.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2065 ms 28596 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #12
0 / 9.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2067 ms 30240 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #13
0 / 9.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2040 ms 36588 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #14
0 / 9.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2054 ms 40100 KB Time limit exceeded
2 Halted 0 ms 0 KB -