Submission #960307

#	Time	Username	Problem	Language	Result	Execution time	Memory
960307		penguin133	Parrots (IOI11_parrots)	C++17	81 / 100	3 ms	1336 KiB

encoder

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

//#define int long long
#define pi pair<int, int>
#define pii pair<int, pi>
#define fi first
#define se second
#ifdef _WIN32
#define getchar_unlocked _getchar_nolock
#endif
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
#include "encoder.h"
#include "encoderlib.h"

void encode(int N, int M[])
{
	if(N <= 32){
		for(int i = 0; i < N; i++){
		    for(int j = 0; j < 8; j++){
		  	    if(M[i] >> j & 1){
		  		    send(i * 8 + j);
			    }
		    }
	    }
    }
    else{
		for(int i = 0; i < N; i++){
			for(int j = 0; j < 8; j++){
				if(M[i] >> j & 1){
					if(j >= 4){
						send(i * 4 + j % 4);
						send(i * 4 + j % 4);
					}
					else{
						send(i * 4 + j % 4);
					}
				}
			}
		}
	}
}

decoder

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

//#define int long long
#define pi pair<int, int>
#define pii pair<int, pi>
#define fi first
#define se second
#ifdef _WIN32
#define getchar_unlocked _getchar_nolock
#endif
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

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

void decode(int N, int L, int X[])
{
	int ans[300] = {0};
	if(N <= 32){
		for(int i = 0; i < L; i++){
			int t = X[i] / 8, t1 = X[i] % 8;
			ans[t] += (1<<t1);
		}
		for(int i = 0; i < N; i++)output(ans[i]);
	}
	else{
		map <int, int> mp;
		for(int i = 0; i < L; i++){
			mp[X[i]]++;
		}
		for(auto [i, j] : mp){
			int x = i / 4, y = i % 4;
			if(j == 2)y += 4;
			ans[x] += (1 << y);
		}
		for(int i = 0; i < N; i++)output(ans[i]);
	}
}

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