Submission #902651

#	Time	Username	Problem	Language	Result	Execution time	Memory
902651		nguyentunglam	Broken Device (JOI17_broken_device)	C++17	0 / 100	125 ms	3848 KiB

Anna

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

//struct encode {
void Anna( int n, long long x, int k, int p[] ){
  vector<bool> broken(n);
  cout << x << endl;
  for(int i = 0; i < n; i++) broken[i] = 0;
  for(int i = 0; i < k; i++) broken[p[i]] = 1;

  int j = 59;
  for(long long i = 0, pre = -1; i < n; i++) {
    if (broken[i] || j < 0) {
      Set(i, 0);
      continue;
    }
    bool a = x >> j & 1;
    bool b = i - pre & 1;
    if (a == b) {
      pre = i;
      j--;
      Set(i, 1);
      cout << i << " " << j << " " << a << endl;
    }
    else Set(i, 0);
  }
//  assert(j < 0);
}

Bruno

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

//struct decode {
  long long Bruno( int n, int a[] ){
    long long x = 0;
    for(int i = 0, pre = -1, j = 59; i < n && j >= 0; i++) if (a[i]) {
      bool bit = i - pre & 1;
      if (bit) x |= (1LL << j);
      j--;
      pre = i;
    }
  //  for(int i = 0; i < n; i++) cout << a[i] << " "; cout << endl;
    cout << "answer :" << x << endl;
    return x;
  }
//};
//decode solve;

//long long Bruno( int n, int a[] ){
//  return solve.Bruno(n, a);
//}

Compilation message (stderr)

Anna.cpp: In function 'void Anna(int, long long int, int, int*)':
Anna.cpp:19:16: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   19 |     bool b = i - pre & 1;
      |              ~~^~~~~

Bruno.cpp: In function 'long long int Bruno(int, int*)':
Bruno.cpp:9:20: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
    9 |       bool bit = i - pre & 1;
      |                  ~~^~~~~

• Subtask 1: 0 / 100