Submission #480680

#	Time	Username	Problem	Language	Result	Execution time	Memory
480680		zsombor	Arranging Shoes (IOI19_shoes)	C++17	50 / 100	1094 ms	3112 KiB

shoes

#include "shoes.h"
using namespace std;

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

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