Submission #604454

#	Time	Username	Problem	Language	Result	Execution time	Memory
604454		pawned	Arranging Shoes (IOI19_shoes)	C++17	0 / 100	1 ms	212 KiB

shoes

#include "shoes.h"

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;

#define fi first
#define se second
#define pb push_back
typedef long long ll;
typedef pair<int, int> ii;
typedef vector<int> vi;

typedef tree<int, null_type, greater<int>, rb_tree_tag, tree_order_statistics_node_update> pbds;

long long count_swaps(std::vector<int> s) {
	ll N = s.size() / 2;
	int shoes[2 * N];
	for (int i = 0; i < 2 * N; i++) {
		shoes[i] = s[i];
	}
	int counter = 0;
	for (int i = 0; i < 2 * N; i += 2) {
		int find = -shoes[i];
		int pos = -1;
		for (int j = i + 1; j < 2 * N; j++) {
			if (shoes[j] == find)
				pos = j;
		}
		for (int j = pos; j > i; j--) {
			swap(shoes[j], shoes[j + 1]);
			counter++;
		}
		if (shoes[i] > shoes[i + 1]) {
			swap(shoes[i], shoes[i + 1]);
			counter++;
		}
	}
	return counter;
}

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