Submission #1206195

#	Time	Username	Problem	Language	Result	Execution time	Memory
1206195		thelegendary08	Arranging Shoes (IOI19_shoes)	C++17	45 / 100	18 ms	4284 KiB

shoes

#include "shoes.h"
#include<bits/stdc++.h>
#define int long long
#define f0r(i,n) for(int i = 0; i<n; i++)
#define pb push_back
#define vi vector<int>
using namespace std;
int count_swaps(std::vector<signed> s) {
	int n = s.size();
	if(n == 2){
		if(s[0] < 0)return 0;
		else return 1;
	}
	else{
		vi rs;
		f0r(i,n){
			if(s[i] > 0)rs.pb(i);
		}
		vi tar;
		for(int i = 1; i<n; i+=2){
			tar.pb(i);
		}
		int ans = 0;
		f0r(i, rs.size()){
			ans += abs(rs[i] - tar[i]);
		}
		return ans;
	}
	return 1;
}

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