Submission #235550

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
235550	2020-05-28 13:54:05	pit4h	Mechanical Doll (IOI18_doll)	C++14	100 / 100	157 ms	12216 KiB

doll

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#include<bits/stdc++.h>
#define st first
#define nd second
#define pii pair<int, int>
#include "doll.h"
using namespace std;
const int MAXN =4e5+5;
int n, base=1, e[2*MAXN][2], rep[2*MAXN];
bool turn[2*MAXN];
void get_edges(int id, int l, int r) {  
  if(l==r) {
    if((base-l) * 2 >= n) {
      e[id][1]=1;
    }
    if((base-l) * 2 + 1 >= n) {
      e[id][0]=1;
    }
    return;
  }
  int m = (l+r)/2;
  e[id][0] = id*2;
  e[id][1] = id*2+1;
  if((base-r) * 2 >= n) {
    e[id][1]=1;
  }
  if((base-m) * 2 >= n) {
    e[id][0]=1;
  }
  if(e[id][0]==id*2) {
    get_edges(id*2, l, m);
 
 
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• Subtask 1: 2 / 2
• Subtask 2: 4 / 4
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 18 / 18
• Subtask 6: 56 / 56