Submission #336144

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
336144	2020-12-14 21:53:11	super_j6	Mechanical Doll (IOI18_doll)	C++14	100 / 100	173 ms	10716 KiB

doll

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#include "doll.h"
#include <iostream>
#include <cstdio>
#include <algorithm>
#include <vector>
using namespace std;
#define endl '\n'
#define ll long long
#define pi pair<int, int>
#define f first
#define s second
#define vi vector<int>
const int mxn = 1 << 19;
int n, k, t;
bool b[mxn];
vi f, u(mxn), v(mxn);
int bld(int l, int r){
  if(l == r) return 0;
  if(r < k - n) return -1;
  int it = t++, mid = (l + r) / 2;
  u[it] = bld(l, mid), v[it] = bld(mid + 1, r);
  return -it - 1;
}
void add(int x, int y){
  x = -x - 1;
  int &z = b[x] ? v[x] : u[x];
  b[x] ^= 1;
 
 
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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