Submission #1225367

#	Time	Username	Problem	Language	Result	Execution time	Memory
1225367		toast12	Arranging Shoes (IOI19_shoes)	C++20	10 / 100	1 ms	328 KiB

shoes

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

long long count_swaps(vector<int> s) {
	int n = s.size();
	long long ans = 0;
	for (int i = 0; i < n; i += 2) {
		for (int j = i+1; j < n; j++) {
			if (abs(s[j]) == abs(s[i])) {
				for (int k = j-1; k > i; k--) {
					swap(s[k], s[k+1]);
					ans++;
				}
				if (s[i] > s[i+1]) {
					swap(s[i], s[i+1]);
					ans++;
				}
				break;
			}
		}
	}
	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