Submission #1189959

#	Time	Username	Problem	Language	Result	Execution time	Memory
1189959		h1440	Arranging Shoes (IOI19_shoes)	C++20	45 / 100	14 ms	1964 KiB

shoes

#include "shoes.h"
#include <bits/stdc++.h>
#define fore(i,a,b) for(lli i = (a), abcdxd = (b); i < abcdxd; i++)
#define sz(s) lli((s).size())
using namespace std;
typedef long long lli;

long long count_swaps(std::vector<int> s) {
	lli id = 0, ans = 0;
	fore(i,0,sz(s)) if (s[i] < 0){
		ans += abs(id - i);
		id += 2;
	}
	return ans;
}

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