Submission #297176

#	Time	Username	Problem	Language	Result	Execution time	Memory
297176		emnik	Arranging Shoes (IOI19_shoes)	C++14	50 / 100	1066 ms	3200 KiB

shoes

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

typedef long long ll;
#define pb push_back
#define all(x) begin(x), end(x)
#define IOS ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);

ll count_swaps(vector<int> arr){
	ll ans=0;
	while(!arr.empty()){
		int x = arr.front();
		int i = find(arr.begin(), arr.end(), -x)-arr.begin();
		ans+=i-(x<0);
		arr.erase(arr.begin()+i);
		arr.erase(arr.begin());
	}
	return ans;
}

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