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Submission #1051305

# Submission time Handle Problem Language Result Execution time Memory
1051305 2024-08-10T04:13:31 Z Pacybwoah How to Avoid Disqualification in 75 Easy Steps (CEOI23_avoid) C++17
0 / 100
 1 ms 596 KB 
#include "avoid.h"
#include <vector>
#include<algorithm>
#include<random>
#include<chrono>
#include<utility>
#include<cassert>
using namespace std;
auto seed = chrono::high_resolution_clock::now().time_since_epoch().count();
mt19937 mt(seed);
// send(), wait()
std::pair<int, int> scout(int R, int H) {
    vector<int> vec(1000);
    for(int i = 0; i < 1000; i++) vec[i] = i + 1;
    vector<bool> poss(1001, 1);
    int now = 0;
    vector<vector<int>> asked;
    while(now <= R - 20){
        now += 2;
        shuffle(vec.begin(), vec.end(), mt);
        vector<int> ask1, ask2;
        for(int i = 0; i < 333; i++) ask1.push_back(vec[i]);
        for(int i = 0; i < 333; i++) ask2.push_back(vec[i + 500]);
        send(ask1);
        send(ask2);
        asked.push_back(ask1);
        asked.push_back(ask2);
    }
    auto res = wait();
    int sz = res.size();
    for(int i = 0; i < sz; i++){
        if(res[i] == 0){
            for(auto &x: asked[i]) poss[x] = 0;
        }
    }
    pair<int, int> ans;
    vector<int> anss;
    for(int i = 1; i <= 1000; i++) if(poss[i]) anss.push_back(i);
    //assert(anss.size() <= 2);
    if(anss.size() == 1) ans.first = anss[0], ans.second = anss[0];
    else ans.first = anss[1], ans.second = anss[0];
    return ans;
}
// g++ -std=c++17 -o run ceoi23_d2C_grader.cpp ceoi23_d2C.cpp -fsanitize=undefined -fsanitize=address -Wall -Wextra -Wshadow

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Correct: 56 robot(s) used, 1 hour(s) passed

Subtask #1
0.0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Not correct
2 Halted 0 ms 0 KB -

Subtask #2
0.0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Not correct
2 Halted 0 ms 0 KB -

Subtask #3
0.0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Not correct
2 Halted 0 ms 0 KB -

Subtask #4
0.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Correct: 56 robot(s) used, 1 hour(s) passed
2 Correct 1 ms 596 KB Correct: 56 robot(s) used, 1 hour(s) passed
3 Incorrect 1 ms 488 KB Not correct
4 Halted 0 ms 0 KB -