Submission #565221

#	Time	Username	Problem	Language	Result	Execution time	Memory
565221		1zaid1	Question (Grader is different from the original contest) (CEOI14_question_grader)	C++14	100 / 100	3029 ms	24216 KiB

encoder

#include<bits/stdc++.h>
using namespace std;
vector<int> v;
int encode (int n, int x, int y) {
    if (!v.size()) {
        for (int i = 0; i < (1<<12); i++) {
            int cnt = 0;
            for (int j = 0; j < 12; j++) if (i&(1<<j)) cnt++;
            if (cnt == 6) v.push_back(i);
        }
    }

    for (int k = 0; k < 12; k++) {
        if ((v[x-1]&(1<<k)) && !(v[y-1]&(1<<k))) return k+1;
    } return 0;
}

decoder

#include<bits/stdc++.h>
using namespace std;
vector<int> v;
int decode (int n, int q, int h) {
	if (!v.size()) {
        for (int i = 0; i < (1<<12); i++) {
            int cnt = 0;
            for (int j = 0; j < 12; j++) if (i&(1<<j)) cnt++;
            if (cnt == 6) v.push_back(i);
        }
    }

    return (v[q-1]&(1<<(h-1))) != 0;
}

• Subtask 1: 100 / 100