제출 #651852

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
651852		jiahng	Arranging Shoes (IOI19_shoes)	C++14	10 / 100	45 ms	10892 KiB

shoes

#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int,int> pi;
typedef vector <int> vi;
typedef vector <pi> vpi;
typedef pair<pi, ll> pii;
typedef set <ll> si;
typedef long double ld;
#define f first
#define s second
#define mp make_pair
#define FOR(i,s,e) for(int i=s;i<=int(e);++i)
#define DEC(i,s,e) for(int i=s;i>=int(e);--i)
#define pb push_back
#define all(x) (x).begin(), (x).end()
#define lbd(x, y) lower_bound(all(x), y)
#define ubd(x, y) upper_bound(all(x), y)
#define aFOR(i,x) for (auto i: x)
#define mem(x,i) memset(x,i,sizeof x)
#define fast ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0)
#define maxn 200010
#define INF (ll)1e9
#define MOD 1000000007
typedef pair <vi, int> pvi;
typedef pair <int,pi> ipi;
typedef vector <pii> vpii;

vi A[maxn];
long long count_swaps(std::vector<int> s) {
    long long ans = 0;
    FOR(i,0,s.size()-1){
       int val = (s[i] < 0 ? -i : i);
       //cout << val << ' ';
       if (A[abs(s[i])].empty() || (A[abs(s[i])].back() < 0) == (val < 0)){
            A[abs(s[i])].pb(val); 
       }else{
            ans += abs(A[abs(s[i])].back() + val) - 1;
            if (val < 0) ans++;
            A[abs(s[i])].pop_back();
        }
    }
	return ans;
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 15