Submission #411823

#	Time	Username	Problem	Language	Result	Execution time	Memory
411823		jeqcho	Parrots (IOI11_parrots)	C++17	81 / 100	5 ms	1252 KiB

encoder

#include "encoder.h"
#include "encoderlib.h"
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef vector<pair<int,int>> vpi;

#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define F0R(i,a) FOR(i,0,a)
#define ROF(i,a,b) for (int i = (b)-1; i >= (a); --i)
#define R0F(i,a) ROF(i,0,a)
#define trav(a,x) for (auto& a: x)

#define pb push_back
#define rsz resize
#define sz(x) int(x.size())
#define all(x) begin(x), end(x)
#define fi first
#define se second

// subtask 1,2

void encode(int N, int M[])
{
	F0R(i,N)
	{
		F0R(j,8+1)
		{
			bool jthbitset = (M[i]&(1<<j))!=0;
			if(jthbitset)
			{
				int package = (j<<5) + i;
				send(package);
			}
			
		}
	}
}

decoder

#include "decoder.h"
#include "decoderlib.h"
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef vector<pair<int,int>> vpi;

#define FOR(i,a,b) for (int i = (a); i < (b); ++i)
#define F0R(i,a) FOR(i,0,a)
#define ROF(i,a,b) for (int i = (b)-1; i >= (a); --i)
#define R0F(i,a) ROF(i,0,a)
#define trav(a,x) for (auto& a: x)

#define pb push_back
#define rsz resize
#define sz(x) int(x.size())
#define all(x) begin(x), end(x)
#define fi first
#define se second

// subtask 1,2

void decode(int N, int L, int X[])
{
	vi ans(N);
	F0R(i,L)
	{
		int ithitem = X[i]&(0b00011111);
		int jthbitset = X[i]>>5;
		ans[ithitem]+=1<<jthbitset;
	}
	F0R(i,N)
	{
		output(ans[i]);
	}
}

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