제출 #1014416

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1014416		KasymK	Arranging Shoes (IOI19_shoes)	C++17	45 / 100	19 ms	3264 KiB

shoes

#include "bits/stdc++.h"
using namespace std;
#define ll long long
#define ff first
#define ss second
#define all(v) v.begin(), v.end()
 
ll count_swaps(vector<int> v){
    int n = (int)v.size();
    ll ans = 0;
    int ne_ = 1, ne__ = 1;
    for(int i = 0; i < n; ++i){
        ne_ = max(i+1, ne_);
        ne__ = max(i+1, ne__);
        if(i&1){
            if(v[i] < 0){
                while(v[ne_] < 0)
                    ne_++;
                swap(v[i], v[ne_]);
                ans += (ne_-i);
            }
        }
        else{
            if(v[i] > 0){
                while(v[ne__] > 0)
                    ne__++;
                swap(v[i], v[ne__]);
                ans += (ne__-i);
            }
        }
    }
    return ans;
}

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