oj.uz

Submission #823825

# Submission time Handle Problem Language Result Execution time Memory
823825 2023-08-13T07:51:40 Z ttamx Flight to the Ford (BOI22_communication) C++17
15 / 100
 29 ms 2084 KB 
#include"communication.h"
#include<bits/stdc++.h>

using namespace std;

void encode(int N, int X){
    vector<int> val={0,1,6,56};
    for(int i=0;i<6;i++)send(val[X]>>i&1);
}

pair<int, int> decode(int N) {
    vector<vector<int>> vec(64);
    vector<int> val={0,1,6,56};
    vector<int> res;
    for(int i=0;i<64;i++){
        bool ok=true;
        for(int j=0;j<5;j++){
            ok&=(i>>j&3)!=3;
        }
        if(ok){
            res.emplace_back(i);
        }
    }
    int num=0;
    for(int i=0;i<6;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
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 1732 KB Output is correct
2 Correct 9 ms 1696 KB Output is correct
3 Correct 10 ms 2084 KB Output is correct
4 Correct 7 ms 1684 KB Output is correct
5 Correct 8 ms 1792 KB Output is correct
6 Correct 20 ms 1744 KB Output is correct
7 Correct 29 ms 1764 KB Output is correct

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 -