Submission #529709

#	Time	Username	Problem	Language	Result	Execution time	Memory
529709		pokmui9909	Question (Grader is different from the original contest) (CEOI14_question_grader)	C++17	100 / 100	4318 ms	24168 KiB

encoder

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
vector<ll> V;
 
int encode(int n, int x, int y){
    if(V.empty()){
        for(int i = 0; i < (1 << 12); i++){
            if(__builtin_popcount(i) == 6){
                V.push_back(i);
            }
        }
    }
    for(int i = 0; i < 12; i++){
        if((V[x] & (1 << i)) && !(V[y] & (1 << i))){
            return i + 1;
        }
    }
}

decoder

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
vector<ll> V;

int decode(int n, int q, int h){
    h--;
    if(V.empty()){
        for(int i = 0; i < (1 << 12); i++){
            if(__builtin_popcount(i) == 6){
                V.push_back(i);
            }
        }
    }
    return !!(V[q] & (1 << h));
}

Compilation message (stderr)

encoder.cpp: In function 'int encode(int, int, int)':
encoder.cpp:19:1: warning: control reaches end of non-void function [-Wreturn-type]
   19 | }
      | ^

• Subtask 1: 100 / 100