#include "encoder.h"
#include "encoderlib.h"
#include <bits/stdc++.h>
using namespace std;
void encode(int n, int v[]) {
vector<bool> on(512);
int val = -1;
for (int i = 0; i < n; i++) {
for (int j = 7; j >= 0; j--) {
val++;
if (v[i] & (1 << j)) on[val] = 1;
}
}
for (int i = 0; i < 256; i++) {
if (on[i]) send(i);
if (on[i + 256]) {
send(i);
send(i);
}
}
}
#include "decoder.h"
#include "decoderlib.h"
#include <bits/stdc++.h>
using namespace std;
void decode(int n, int l, int x[]) {
vector<int> qtd(256);
for (int i = 0; i < l; i++) qtd[x[i]]++;
vector<bool> tem(512);
for (int i = 0; i < 256; i++) {
if ((qtd[i] == 1) || (qtd[i] == 3)) tem[i] = 1;
else if ((qtd[i] == 2) || (qtd[i] == 3)) tem[i + 256] = 1;
}
int val = -1;
for (int i = 0; i < n; i++) {
int curr = 0;
for (int j = 7; j >= 0; j--) {
val++;
if (tem[val]) curr += (1 << j);
}
output(curr);
}
}
