제출 #1320165

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1320165		marzuq01	Arranging Shoes (IOI19_shoes)	C++20	45 / 100	16 ms	4112 KiB

shoes

#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
long long count_swaps(std::vector<int> s) {
	//same size;
	long long int n2 = s.size();
	long long int n = n2 / 2ll;
	vector<long long int> left,right;
	for (long long int i = 0; i < n2;i++) {
        if (s[i] < 0ll) left.push_back(i);
        else right.push_back(i);
	}
	sort(left.begin(),left.end());
	long long int count = 0ll;
	for (long long int i = 0ll; i < n;i++) {
        count += (long long)abs((2*i) - left[i]);
	}
	return count;
}

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