Submission #199149

#	Time	Username	Problem	Language	Result	Execution time	Memory
199149		godwind	Parrots (IOI11_parrots)	C++14	52 / 100	11 ms	1520 KiB

encoder

#include "encoder.h"
#include "encoderlib.h"
 
 
using namespace std;
 
 
void encode(int n, int M[]) {
	for (int i = 0; i < n; ++i) {
		int x = i * 16;
		send(i * 16 + 4 * 0 + M[i] % 4);
		send(i * 16 + 4 * 1 + (M[i] >> 2) % 4);
		send(i * 16 + 4 * 2 + (M[i] >> 4) % 4);
		send(i * 16 + 4 * 3 + (M[i] >> 6) % 4);
	}
}

decoder

#include "decoder.h"
#include "decoderlib.h"
 
 
using namespace std;
 
int ans[1000];
 
void decode(int n, int L, int X[]) {
    for (int i = 0; i < n; ++i) {
		ans[i] = 0;
    }
	for (int i = 0; i < L; ++i) {
		int id = X[i] >> 4;
		int r = (X[i] >> 2) % 4;
		ans[id] += (1 << (2 * r)) * (X[i] % 4);
	}
	for (int i = 0; i < n; ++i) {
		output(ans[i]);
    }
}

Compilation message (stderr)

encoder.cpp: In function 'void encode(int, int*)':
encoder.cpp:10:7: warning: unused variable 'x' [-Wunused-variable]
   int x = i * 16;
       ^

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