Submission #351673

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
351673	2021-01-20 06:27:21	kylych03	Parrots (IOI11_parrots)	C++14	0 / 100	45 ms	1676 KiB

encoder

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#include "encoder.h"
#include "encoderlib.h"
#include <bits/stdc++.h>
using namespace std;
void encode(int N, int M[])
{
    int i, xr, res = 1e9;
    for(int t = 0 ; t <= 255; t++){
      int cnt = 0;
      for(i = 0 ; i < N; i++){
      int f = (M[i] ^ t);
      for(int j= 0 ; j < 8 ;j++){
        if(( f>>j )&1){ 
          if(j%2==1)
            cnt++;
          cnt++;  
        }
      }
    }
    if(cnt  < res){
      res =  cnt;
      xr = t; 
    }
    }
    
    for(i = 0 ; i < N; i++)
      M[i]^=(xr);
    if(N > 32){
      for(i=0; i<N; i++){
      int packet=(i<<2);
 
 
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decoder

 
 
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Compilation message (stderr)

encoder.cpp: In function 'void encode(int, int*)':
encoder.cpp:27:9: warning: 'xr' may be used uninitialized in this function [-Wmaybe-uninitialized]
   27 |     M[i]^=(xr);
      |     ~~~~^~~~~~

decoder.cpp: In function 'void decode(int, int, int*)':
decoder.cpp:36:12: warning: 'xr' may be used uninitialized in this function [-Wmaybe-uninitialized]
   36 |      output(res[i]^xr);
      |      ~~~~~~^~~~~~~~~~~

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