Submission #564970

#	Time	Username	Problem	Language	Result	Execution time	Memory
564970		shrimb	Question (Grader is different from the original contest) (CEOI14_question_grader)	C++17	100 / 100	3091 ms	24300 KiB

encoder

#include"bits/stdc++.h"
using namespace std;
int init = 0;
int g[942];

void __init__ () {
    for (int i = 0, j = 0 ; ; i++) {
        if (__builtin_popcount(i) == 6) {
            g[j++] = i;
            if (j == 942) break;
        }
    }
    init = 1;
}
int encode (int n, int x, int y) {
    if (!init) {
        __init__();
    }
    for (int i = 0 ; i < 12 ; i++) {
        if (g[x] & (1 << i) and !(g[y] & (1 << i))) return i + 1;
    }
}

decoder

#include"bits/stdc++.h"
using namespace std;
int init = 0;
int g[942];

void __init__ () {
    for (int i = 0, j = 0 ; ; i++) {
        if (__builtin_popcount(i) == 6) {
            g[j++] = i;
            if (j == 942) break;
        }
    }
	init = 1;
}
int decode (int n, int q, int h) {
	if (!init) {
        __init__();
    }
	return bool(g[q] & (1 << (h-1)));
}

Compilation message (stderr)

encoder.cpp: In function 'int encode(int, int, int)':
encoder.cpp:22:1: warning: control reaches end of non-void function [-Wreturn-type]
   22 | }
      | ^

• Subtask 1: 100 / 100