Submission #965369

#	Time	Username	Problem	Language	Result	Execution time	Memory
965369		akacool445k	Arranging Shoes (IOI19_shoes)	C++14	10 / 100	2 ms	420 KiB

shoes

#include "shoes.h"

using namespace std;
long long count_swaps(vector<int> s) {
	long long n = s.size();
	long long ans = 0;
	vector<int> c(n, 1);
	for (int i = 0; i < n; i++) {
		if (c[i] == 0) continue;
		int ss = 0;
		for (int j = i + 1; j < n; j++) {
			if (s[i] + s[j] == 0) {
				ans += ss;
				c[j] = 0;
				break;
			} else {
				ss += c[j];
			}
		}
		if (s[i] > 0) ans++;
	}
	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