Submission #995338

#	Time	Username	Problem	Language	Result	Execution time	Memory
995338		Saul0906	Parrots (IOI11_parrots)	C++14	52 / 100	2 ms	1560 KiB

encoder

#include "encoder.h"
#include "encoderlib.h"
#define rep(a,b,c) for(int a=b; a<c; a++)
#include <iostream>

using namespace std;

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

decoder

#include "decoder.h"
#include "decoderlib.h"
#include <iostream>
#define rep(a,b,c) for(int a=b; a<c; a++)

using namespace std;

void decode(int N, int L, int X[]){
	int a[N]{}, x, y;
	rep(i,0,L){
		x=X[i]>>4;
		X[i]^=x<<4;
		y=x>>2;
		a[X[i]]^=y<<(2*(x^(y<<2)));
	}
	rep(i,0,N) output(a[i]);
}

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