제출 #291310

#제출 시각아이디문제언어결과실행 시간메모리
291310juggernautArranging Shoes (IOI19_shoes)C++14
15 / 100
47 ms1924 KiB
#include<bits/stdc++.h>
#include"shoes.h"
using namespace std;
typedef long long int ll;
long long count_swaps(vector<int>v){
    ll n=v.size()/2;
    return (n*(n-1))/2;
}
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