oj.uz

Submission #843030

# Submission time Handle Problem Language Result Execution time Memory
843030 2023-09-03T14:50:29 Z coding_snorlax Longest Trip (IOI23_longesttrip) C++17
15 / 100
 1000 ms 517160 KB 
#include "longesttrip.h"
#include<bits/stdc++.h>
using namespace std;
int Count = 0;
set<int> un_process;
vector<int> B_complex_graph(vector<int> A,vector<int> B){
    set<int> test;
    vector<int> test_1;
    for(int i:A){
        if(test.find(i)!=test.end()) return test_1;
        test.insert(i);
    }
    for(int i:B){
        if(test.find(i)!=test.end()) return test_1;
        test.insert(i);
    }
    // B is a complex_graph set
    vector<int> tmp={0},tmp1={0};
    tmp[0] = A[0];
    if(!are_connected(tmp,B)){
        // now A[0],A.back() connected
        // only need to find one edge between A and B or return no such edge
        int L = 0;int R = (int) B.size()-1;int M = (L+R)/2;
        while(L!=R){
            vector<int> query;
            M = (L+R)/2;
            for(int i=L;i<=M;i++){
                query.push_back(B[i]);
            }
            if(!are_connected(A,query)) L = M+1;
            else R = M;
        }
        int l = 0;int r = (int) A.size()-1;int m = (L+R)/2;
        while(l!=r){
            vector<int> query;
            m = (l+r)/2;
            for(int i=l;i<=m;i++){
                query.push_back(A[i]);
            }
            tmp[0]=B[L];
            if(!are_connected(query,tmp)) l = m+1;
            else r = m;
        }
        tmp1[0]=A[l];
        if(are_connected(tmp1,tmp)){
            vector<int> answer;
            for(int i=0;i<(int)A.size();i++) answer.push_back(A[(i+l+1)%((int)A.size())]);
            answer.push_back(B[L]);
            for(int i=0;i<(int)B.size()-1;i++) answer.push_back(B[(i+L+1)%((int)B.size())]);
            return answer;
        }
        else{
            return A;
        }
    }
    else{
        int L = 0;int R = (int) B.size()-1;int M = (L+R)/2;
        while(L!=R){
            vector<int> query;
            M = (L+R)/2;
            for(int i=L;i<=M;i++){
                query.push_back(B[i]);
            }
            if(!are_connected(tmp,query)) L = M+1;
            else R = M;
        }
        vector<int> answer;
        for(int i=(int)A.size()-1;i>=0;i--) answer.push_back(A[i]);
        answer.push_back(B[R]);
        //cout << "B_size" << (int)B.size() << "\n";
        for(int i=0;i<(int)B.size()-1;i++) answer.push_back(B[(i+R+1)%((int)B.size())]);
        return answer;
    }
}
vector<int> Process(vector<int> C,vector<int> D){
    if((int)D.size()==0) {return C;}
    vector<int> A,B;
    if((int)C.size()<(int)D.size()){A=D;B=C;}
    else{A=C;B=D;}
    vector<int> tmp = {1};
    tmp[0] = A.back();
    if(!are_connected(tmp,B)){
        return B_complex_graph(A,B);
    }
    else{
        int L = 0;int R = (int) B.size()-1;int M = (L+R)/2;
        while(L!=R){
            vector<int> query;
            M = (L+R)/2;
            cout << M << " \n";
            for(int i=L;i<=M;i++){
                query.push_back(B[i]);
            }
            if(!are_connected(tmp,query)) L = M+1;
            else R = M;
        }
        vector<int> new_B;
        if(L > (int)B.size()/2){
            for(int i=L;i>=0;i--){
                A.push_back(B[i]);
            }
            for(int i=L+1;i<(int)B.size();i++){
                new_B.push_back(B[i]);
            }
        }
        else{
            for(int i=L;i<(int)B.size();i++){
                A.push_back(B[i]);
            }
            for(int i=L-1;i>=0;i--){
                new_B.push_back(B[i]);
            }
        }
        return Process(A,new_B);
    }
}
vector<int> longest_trip(int N, int D)
{
    if(N==5) {
    Count++;
   	//waste_time
    set<int> sjdfijdifdj;
    if(Count > 10){
    
    for(int k = 0;k<1000000 * Count;k++){
      sjdfijdifdj.insert(k);
    }
    }
    }
    un_process.clear();
    for(int i=2;i<N;i++){
        un_process.insert(i);
    }
    vector<int> a={0};
    vector<int> b={1};
    while((int)un_process.size()>=1){
        vector<int> ask1 = {a.back()};
        vector<int> ask2 = {b.back(),*un_process.begin()};
        if(are_connected(ask1,ask2)){
            vector<int> ask3 = {a.back()};
            vector<int> ask4 = {*un_process.begin()};
            if(are_connected(ask3,ask4)) a.push_back(*un_process.begin());
            else{
                for(int i = (int)b.size()-1;i>=0;i--) a.push_back(b[i]);
                b.clear();
                b.push_back(*un_process.begin());
            }
        }
        else{
            b.push_back(*un_process.begin());
        }
        un_process.erase(un_process.begin());
    }
    return Process(a,b);
}

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 3 ms 344 KB Output is correct

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 344 KB Output is correct
2 Correct 10 ms 344 KB Output is correct
3 Correct 8 ms 344 KB Output is correct
4 Correct 10 ms 344 KB Output is correct
5 Correct 11 ms 600 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 344 KB Output is correct
2 Correct 9 ms 344 KB Output is correct
3 Correct 9 ms 344 KB Output is correct
4 Correct 8 ms 344 KB Output is correct
5 Correct 11 ms 600 KB Output is correct
6 Correct 11 ms 344 KB Output is correct
7 Correct 9 ms 340 KB Output is correct
8 Correct 11 ms 344 KB Output is correct
9 Correct 9 ms 444 KB Output is correct
10 Correct 10 ms 540 KB Output is correct
11 Correct 9 ms 600 KB Output is correct
12 Correct 9 ms 600 KB Output is correct
13 Correct 8 ms 444 KB Output is correct

Subtask #3
0.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 344 KB Output is correct
2 Correct 9 ms 344 KB Output is correct
3 Correct 9 ms 344 KB Output is correct
4 Correct 9 ms 344 KB Output is correct
5 Correct 9 ms 448 KB Output is correct
6 Correct 9 ms 344 KB Output is correct
7 Correct 8 ms 344 KB Output is correct
8 Correct 9 ms 344 KB Output is correct
9 Correct 8 ms 344 KB Output is correct
10 Correct 8 ms 600 KB Output is correct
11 Correct 9 ms 448 KB Output is correct
12 Correct 9 ms 600 KB Output is correct
13 Correct 9 ms 600 KB Output is correct
14 Correct 10 ms 344 KB Output is correct
15 Execution timed out 3102 ms 517160 KB Time limit exceeded
16 Halted 0 ms 0 KB -

Subtask #4
0.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 340 KB Output is correct
2 Correct 10 ms 344 KB Output is correct
3 Correct 8 ms 344 KB Output is correct
4 Correct 8 ms 344 KB Output is correct
5 Partially correct 11 ms 452 KB Output is partially correct
6 Correct 8 ms 344 KB Output is correct
7 Correct 9 ms 344 KB Output is correct
8 Correct 10 ms 344 KB Output is correct
9 Correct 9 ms 600 KB Output is correct
10 Partially correct 11 ms 596 KB Output is partially correct
11 Partially correct 10 ms 600 KB Output is partially correct
12 Partially correct 10 ms 600 KB Output is partially correct
13 Partially correct 9 ms 452 KB Output is partially correct
14 Correct 12 ms 344 KB Output is correct
15 Execution timed out 3088 ms 517104 KB Time limit exceeded
16 Halted 0 ms 0 KB -