Submission #26974

#	Time	Username	Problem	Language	Result	Execution time	Memory
26974		grands	Parrots (IOI11_parrots)	C++14	24 / 100	13 ms	2424 KiB

encoder

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

void encode(int N, int M[])
{
	int mask[8] = { 1,2,4,8,16,32,64,128 };
	for (int i = 0; i < N; i++){
		int message = M[i];
		int loc = i << 2;
		for (int m = 0; m < 8; m+=2){
			if (message&mask[m]){
				send(loc + m / 2);
			}
			if (message&mask[m+1]){
				send(loc + m / 2);
				send(loc + m / 2);
			}
		}
	}
}

decoder

#include "decoder.h"
#include "decoderlib.h"
void decode(int N, int L, int X[]){

	int M[64] = { 0 };
	for (int i = 0; i < L; i++){
		int message = X[i];
		int loc = message >> 2;
		M[loc] += 1<<((message % 4)*2);
	}
	for (int i = 0; i < N; i++){
		output(M[i]);
	}
}

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