Submission #631070

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
631070	2022-08-17 16:16:47	rainboy	Radio Towers (IOI22_towers)	C++17	77 / 100	1008 ms	4208 KiB

towers

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#include "towers.h"
#include <vector>
using namespace std;
const int N = 100000;
int abs_(int a) { return a > 0 ? a : -a; }
int max(int a, int b) { return a > b ? a : b; }
typedef vector<int> vi;
int dd[N], iq[N + 1], pq[N], cnt;
int lt(int i, int j) { return dd[i] < dd[j]; }
int p2(int p) {
  return (p *= 2) > cnt ? 0 : (p < cnt && lt(iq[p + 1], iq[p]) ? p + 1 : p);
}
void pq_up(int i) {
  int p, q, j;
  for (p = pq[i]; (q = p / 2) && lt(i, j = iq[q]); p = q)
    iq[pq[j] = p] = j;
  iq[pq[i] = p] = i;
}
void pq_dn(int i) {
  int p, q, j;
  for (p = pq[i]; (q = p2(p)) && lt(j = iq[q], i); p = q)
 
 
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