Submission #466579

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
466579	2021-08-19 16:56:06	rainboy	Road Closures (APIO21_roads)	C++17	100 / 100	171 ms	39880 KiB

roads

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#include "roads.h"
#include <stdlib.h>
#include <vector>
using namespace std;
typedef vector<int> vi;
typedef vector<long long> vl;
long long max(long long a, long long b) { return a > b ? a : b; }
const int N = 100000;
unsigned int X = 12345;
int rand_() {
  return (X *= 3) >> 1;
}
long long *zz;
void sort(int *ii, int l, int r) {
  while (l < r) {
    int i = l, j = l, k = r, i_ = ii[l + rand_() % (r - l)], tmp;
    while (j < k)
      if (zz[ii[j]] == zz[i_])
        j++;
      else if (zz[ii[j]] < zz[i_]) {
        tmp = ii[i], ii[i] = ii[j], ii[j] = tmp;
 
 
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Compilation message (stderr)

roads.cpp: In function 'void append(int**, int*, int, int)':
roads.cpp:48:23: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses]
   48 |  if (o >= 2 && (o & o - 1) == 0)
      |                     ~~^~~

• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 14 / 14
• Subtask 4: 10 / 10
• Subtask 5: 17 / 17
• Subtask 6: 25 / 25
• Subtask 7: 22 / 22