제출 #201602

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
201602	2020-02-11 11:53:28	khulegub	Arranging Shoes (IOI19_shoes)	C++14	50 / 100	1081 ms	17784 KiB

shoes

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#include "shoes.h"
#include <bits/stdc++.h>
#define mp make_pair
#define pb push_back
#define xx first
#define yy second
#define ll(x) (x*2) + 1
#define rr(x) (x*2) + 2
using namespace std;
typedef long long i64;
int n;
bool taken[200010];
vector<int> lefts[200010], rights[200010];
i64 count_swaps(std::vector<int> s) {
  i64 ans = 0LL;
  n = s.size();
  for (int i = n - 1; i >= 0; i--){
    if (s[i] < 0) lefts[abs(s[i])].pb(i);
    else rights[abs(s[i])].pb(i);
  }
 
 
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