Submission #770458

#	Time	Username	Problem	Language	Result	Execution time	Memory
770458		kad_01	Parrots (IOI11_parrots)	C++14	24 / 100	6 ms	1380 KiB

encoder

#include "encoder.h"
#include "encoderlib.h"

void encode(int N, int M[])
{
	for (int i = 0; i < N; i++) {
		for (int j = 0; j < (M[i] >> 6); j++) {
			send(4 * i);
		}
		for (int j = 0; j < ((M[i] >> 4) & 3); j++) {
			send(4 * i + 1);
		}
		for (int j = 0; j < ((M[i] >> 2) & 3); j++) {
			send(4 * i + 2);
		}
		int k = M[i] & 3;
		for (int j = 0; j < (M[i] & 3); j++) {
			send(4 * i + 3);
		}
	}
}

decoder

#include "decoder.h"
#include "decoderlib.h"

void decode(int N, int L, int X[])
{
	int freq[256];
	for(int i = 0; i < 256; i++) {
		freq[i] = 0;
	}
	for(int i = 0; i < L; i++) {
		freq[X[i]]++;
	}
	for(int i = 0; i < N; i++) {
		output( freq[4 * i] << 6 |
				freq[4 * i + 1] << 4 |
				freq[4 * i + 2] << 2 |
				freq[4 * i + 3] );
	}
}

Compilation message (stderr)

encoder.cpp: In function 'void encode(int, int*)':
encoder.cpp:16:7: warning: unused variable 'k' [-Wunused-variable]
   16 |   int k = M[i] & 3;
      |       ^

• Subtask 1: 17 / 17
• Subtask 2: 0 / 17
• Subtask 3: 0 / 18
• Subtask 4: 0 / 29
• Subtask 5: 7 / 19