Submission #435607

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
435607	2021-06-23 13:21:52	rainboy	Werewolf (IOI18_werewolf)	C++11	15 / 100	4037 ms	22212 KiB

werewolf

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#include "werewolf.h"
#include <stdlib.h>
#include <string.h>
using namespace std;
typedef vector<int> vi;
const int N = 200000;
int *ej[N], eo[N];
void append(int i, int j) {
  int o = eo[i]++;
  if (o >= 2 && (o & o - 1) == 0)
    ej[i] = (int *) realloc(ej[i], o * 2 * sizeof *ej[i]);
  ej[i][o] = j;
}
int find(int *ds, int i) {
  return ds[i] < 0 ? i : find(ds, ds[i]);
}
void join(int *ds, int *cc, int i, int j, int c) {
  i = find(ds, i);
  j = find(ds, j);
  if (i == j)
    return;
  if (ds[i] > ds[j])
 
 
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Compilation message (stderr)

werewolf.cpp: In function 'void append(int, int)':
werewolf.cpp:16:23: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   16 |  if (o >= 2 && (o & o - 1) == 0)
      |                     ~~^~~

• Subtask 1: 7 / 7
• Subtask 2: 8 / 8
• Subtask 3: 0 / 34
• Subtask 4: 0 / 51