Submission #143415

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
143415	2019-08-14 00:29:47	gs14004	Arranging Shoes (IOI19_shoes)	C++17	100 / 100	97 ms	11508 KiB

shoes

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#include "shoes.h"
#include <bits/stdc++.h>
#define sz(v) ((int)(v).size())
using namespace std;
using lint = long long;
using pi = pair<int, int>;
const int MAXN = 200005;
struct bit{
  int tree[MAXN];
  void add(int x, int v){
    for(int i=x; i<MAXN; i+=i&-i) tree[i] += v;
  }
  int query(int x){
    int ret = 0;
    for(int i=x; i; i-=i&-i) ret += tree[i];
    return ret;
  }
}bit;
lint count_swaps(std::vector<int> s) {
  int n = sz(s) / 2;
  lint ret = 0;
  vector<pi> v;
  vector<pi> ord[MAXN];
  for(int i=0; i<sz(s); i++){
    ord[abs(s[i])].emplace_back(s[i], i);
  }
  for(int i=1; i<=n; i++){
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 15 / 15
• Subtask 5: 20 / 20
• Subtask 6: 15 / 15