Submission #520777

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
520777	2022-01-31 03:33:00	Richw818	Arranging Shoes (IOI19_shoes)	C++17	45 / 100	128 ms	140812 KiB

shoes

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#include <bits/stdc++.h>
using namespace std;
const int MAXN = 200005;
struct bit{
  vector<int> sum;
  bit(){
    sum.resize(MAXN);
  }
  void update(int i, int v){
    while(i < MAXN){
      sum[i] += v;
      i += i & (-i);
    }
  }
  int query(int i){
    int res = 0;
    while(i){
      res += sum[i];
      i -= i & (-i);
    }
    return res;
  }
};
int64_t count_swaps(vector<int> S){
  int n = S.size();
  n >>= 1;
  vector<deque<int>> pos(n+1), neg(n+1);
  vector<int> occ(n + 1);
  for(int i = 0; i < 2 * n; ++i){
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 0 / 20
• Subtask 3: 20 / 20
• Subtask 4: 15 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 15