Submission #896489

#	Time	Username	Problem	Language	Result	Execution time	Memory
896489		anton	Parrots (IOI11_parrots)	C++17	24 / 100	8 ms	1388 KiB

encoder

#include "encoder.h"
#include "encoderlib.h"
#include<bits/stdc++.h>

using namespace std;
#define ll long long


void encode(int N, int M[])
{
    int id = 0;
    for(int i=0; i<N; i++){
        for(int j = 0; j<8; j+=2){
            int oc = (M[i] & (3<<j))>>j;
            for(int k = 0; k<oc; k++){
                send(id);
            }
            id++;
        }
    }

}

decoder

#include "decoder.h"
#include "decoderlib.h"
#include<bits/stdc++.h>

using namespace std;

void decode(int N, int L, int X[])
{
  ////cout<<"L "<<L<<endl;
  vector<int> v(L);

  for(int i = 0; i<L; i++){
    v[i] = X[i];
  }
  sort(v.begin(), v.end());
  reverse(v.begin(), v.end());
  vector<int> res(N);
  for(int pos = 0; pos<N*4; pos++){
    int oc= 0;
    while(v.size()>0 && v.back() == pos){
        oc++;
        v.pop_back();
    }
    //cout<<bitset<8>(oc<<((2*pos)%8));
    res[pos/4] ^= (oc<<((2*pos)%8));
  }

  for(auto e: res){
    output(e);
  }
}

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