Submission #766673

#	Time	Username	Problem	Language	Result	Execution time	Memory
766673		t6twotwo	Arranging Shoes (IOI19_shoes)	C++17	10 / 100	1091 ms	3124 KiB

shoes

#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
ll count_swaps(vector<int> s) {
	int n = s.size() / 2;
	int ans = 0;
	for (int i = 0; i < 2 * n; i += 2) {
		int x = i;
		while (s[x] > 0) {
			x++;
		}
		for (int j = x; j > i; j--) {
			ans++;
			swap(s[j], s[j - 1]);
		}
		x = i + 1;
		while (s[x] != -s[i]) {
			x++;
		}
		for (int j = x; j > i + 1; 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