Submission #207144

#	Time	Username	Problem	Language	Result	Execution time	Memory
207144		Sho10	Arranging Shoes (IOI19_shoes)	C++14	25 / 100	39 ms	3964 KiB

shoes

/*
ID: Sho10
LANG: C++
*/
#include "shoes.h"
#include <bits/stdc++.h> //Andrei Alexandru a.k.a Sho10
#define ll long long int
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#define all(a) (a).begin(), (a).end()
#define sz size
#define f first
#define s second
#define pb push_back
#define er erase
#define in insert
#define mp make_pair
#define pi pair
#define rc(s) return cout<<s,0
#define endl '\n'
#define mod 1000000007
#define PI 3.14159265359
#define CODE_START  ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
using namespace std;
vector<int>v;
ll count_swaps(std::vector<int> S){
    v=S;
    ll ans=0;
    ll n=v.size()/2;
    if(n==1){
if(v[0]<0){
    ans=0;
}else ans=1;
    }else {
    n--;
    ans=n*(n+1)/2;
    }
return ans;
}

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