oj.uz

Submission #823929

# Submission time Handle Problem Language Result Execution time Memory
823929 2023-08-13T10:24:07 Z ttamx Flight to the Ford (BOI22_communication) C++17
0 / 100
 3 ms 328 KB 
#include"communication.h"
#include<bits/stdc++.h>

using namespace std;

void encode(int N, int X){
    vector<int> val={0,1,6,9};
    for(int i=0;i<4;i++)send(val[X]>>i&1);
}

pair<int, int> decode(int N) {
    vector<vector<int>> vec(16);
    vector<int> val={0,1,6,9};
    vector<int> res;
    for(int i=0;i<16;i++){
        bool ok=true;
        for(int j=0;j<3;j++){
            ok&=(i>>j&3)!=3;
        }
        if(ok){
            res.emplace_back(i);
        }
    }
    int num=0;
    for(int i=0;i<4;i++)num|=receive()<<i;
    for(int i=1;i<=N;i++){
        for(auto x:res){
            vec[val[i]^x].emplace_back(i);
        }
    }
    if(vec[num].empty())exit(1);
    while(vec[num].size()<2)vec[num].emplace_back(1);
    return {vec[num][0],vec[num][1]};
}

Subtask #1
0.0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 244 KB Not correct
2 Halted 0 ms 0 KB -

Subtask #2
0.0 / 85.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 328 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -