Submission #1054115

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1054115	2024-08-12 06:33:51	juicy	즐거운 사진 수집 (JOI13_collecting)	C++17	100 / 100	733 ms	62036 KiB

collecting

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#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif
const int N = 21;
int n, q;
int s[2][1 << N], cnt[2][N];
void upd(int *s, int *cnt, int i, int id = 1, int l = 1, int r = 1 << n, int lvl = 0) {
  if (l == r) {
    s[id] ^= 1;
    return;
  }
  int md = (l + r) / 2;
  if (i <= md) {
    upd(s, cnt, i, id * 2, l, md, lvl + 1);
  } else {
    upd(s, cnt, i, id * 2 + 1, md + 1, r, lvl + 1);
  }
  if (~s[id]) {
    --cnt[lvl];
  }
  s[id] = s[id * 2] == s[id * 2 + 1] ? s[id * 2] : -1;
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 70 / 70