Submission #397679

#	Time	Username	Problem	Language	Result	Execution time	Memory
397679		ivan24	Arranging Shoes (IOI19_shoes)	C++14	10 / 100	1 ms	296 KiB

shoes

#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long int;
typedef vector<ll> vi;
typedef vector<vi> vvi;
typedef pair<ll,ll> ii;
typedef vector<ii> vii;
typedef vector<vii> vvii;
#define F first
#define S second

long long count_swaps(vector<int> s) {
    ll n;
    n = s.size(); n /= 2;
    ll ans = 0;
    for (ll i = 0; n > i; i++){
        for (ll j = 2*i+1; 2*n > j; j++){
            if (s[j] == -s[i]){
                for (ll k = j; k > 2*i+1; k--){
                    swap(s[k],s[k-1]);
                    ans++;
                }
            }
        }

        if (s[2*i] > 0){
            swap(s[2*i],s[2*i+1]);
            ans++;
        }


    }
	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