Submission #1301832

#	Time	Username	Problem	Language	Result	Execution time	Memory
1301832		tuncay_pasha	Arranging Shoes (IOI19_shoes)	C++20	10 / 100	1 ms	408 KiB

shoes

#include "shoes.h"
#include "bits/stdc++.h"

using namespace std;

long long count_swaps(vector<int> s) {
	int n = s.size();
	vector<int> v;
	int lf = -abs(s[1]), rg = abs(s[1]);
	for (int i = 0; i < n; ++i) {
		v.push_back(lf);
		v.push_back(rg);
	}
	int ans = 0;
	for (int i = 0; i < n * 2 - 1; ++i) {
		if (s[i] == v[i]) continue;
		int idx = -1;
		for (int j = i + 1; j < n * 2; ++j) {
			if (s[j] == v[i]) {
				idx = j;
				break;
			}
		}
		for (int j = idx - 1; j >= i; --j) {
			++ans;
			swap(s[j], s[j + 1]);
		}
	}
	return ans;
}

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