Submission #258362

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
258362	2020-08-05 20:20:28	maximath_1	Swap (BOI16_swap)	C++11	100 / 100	59 ms	5300 KiB

swap

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#include <iostream>
using namespace std;
int n, arr[200005], used[400005];
const int inf = 1e9 + 69;
int query(int id){
  int rs = inf;
  for(; id; id >>= 1){
    if(used[id] != 1) rs = min(rs, arr[id]);
    if(!used[id]) break;
    if(id % 2 == 1 && used[id - 1]){
      rs = min(rs, arr[id - 1]);
      if(used[id - 1] == 1) break;
    }
  }
  return rs;
}
void erase(int id, int val){
  for(; id; id >>= 1){
    if(arr[id] == val){
      used[id] = 0;
      break;
    }
    if(id % 2 == 1){
      if(arr[id - 1] == val){
        used[id - 1] = used[id] = 1;
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 11 / 11
• Subtask 3: 27 / 27
• Subtask 4: 20 / 20
• Subtask 5: 32 / 32