#include "encoder.h"
#include "encoderlib.h"
int count[1000];
void encode (int N, int M[]) { // 6N approach
int c1 = 0, c0 = 0;
for(int i = 0; i < N; i++) {
for(int j = 0; j < 4; j++) {
count[i*4+j] = !!(M[i] & 1<<(j*2+1))*2 + !!(M[i] & 1<<(j*2));
c1 += count[i*4+j];
}
}
c0 = N * 4 * 3 - c1;
if(c1 < c0) {
for(int i = 0; i < N * 4; i++)
while(count[i]--) send(i);
}else {
send(0); send(0); send(0); send(0);
for(int i = 0; i < N * 4; i++) {
count[i] = 3 - count[i];
while(count[i]--) send(i);
}
}
}
#include "decoder.h"
#include "decoderlib.h"
int count[1000];
void decode (int N, int L, int X[]) {
int i, j;
bool isc0 = false;
for(i = 0; i < N * 4; i++) count[i] = 0;
for(i = 0; i < L; i++) {
++count[X[i]];
if(count[0] == 4) isc0 = true;
}
if(isc0) {
count[0] -= 4;
for(i = 0; i < N * 4; i++) count[i] = 3 - count[i];
}
for(i = 0; i < N; i++) {
int ret = 0;
for(j = 0; j < 4; j++) {
ret |= count[i * 4 + j] << (2 * j);
}
output(ret);
}
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
752 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
1600 KB |
Output is correct |
2 |
Correct |
5 ms |
1600 KB |
Output is correct |
3 |
Correct |
5 ms |
1624 KB |
Output is correct |
4 |
Correct |
6 ms |
1744 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
1776 KB |
Output is correct |
2 |
Correct |
5 ms |
1960 KB |
Output is correct |
3 |
Correct |
7 ms |
2112 KB |
Output is correct |
4 |
Correct |
6 ms |
2112 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
5 ms |
2144 KB |
Output is correct |
2 |
Correct |
6 ms |
2144 KB |
Output is correct |
3 |
Correct |
5 ms |
2144 KB |
Output is correct |
4 |
Correct |
7 ms |
2176 KB |
Output is correct |
5 |
Correct |
7 ms |
2176 KB |
Output is correct |
6 |
Correct |
8 ms |
2176 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Partially correct |
5 ms |
2176 KB |
Output is partially correct - P = 6.250000 |
2 |
Partially correct |
7 ms |
2176 KB |
Output is partially correct - P = 6.093750 |
3 |
Partially correct |
8 ms |
2176 KB |
Output is partially correct - P = 6.121212 |
4 |
Partially correct |
9 ms |
2176 KB |
Output is partially correct - P = 6.080000 |
5 |
Partially correct |
12 ms |
2432 KB |
Output is partially correct - P = 6.066667 |
6 |
Partially correct |
12 ms |
2432 KB |
Output is partially correct - P = 6.047619 |
7 |
Partially correct |
11 ms |
2432 KB |
Output is partially correct - P = 6.062500 |