Submission #143582

#	Time	Username	Problem	Language	Result	Execution time	Memory
143582		cfalas	Arranging Shoes (IOI19_shoes)	C++14	0 / 100	79 ms	6624 KiB

shoes

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

long long count_swaps(std::vector<int> s) {
	int n = s.size()/2;
	set<int> se;
	for(int i=0;i<n;i++){
		se.insert(abs(s[i]));
	}
	if(n%2==0)
		return n/2;
	else{
		return n/2 + se.size()-1;
	}
}

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