Submission #573030

#	Time	Username	Problem	Language	Result	Execution time	Memory
573030		sff_user	Arranging Shoes (IOI19_shoes)	C++17	50 / 100	1088 ms	1864 KiB

shoes

#include "shoes.h"
#include <bits/stdc++.h>

#define vi vector<int>
#define ll long long

using namespace std;


ll count_swaps(vector<int> s) {
	int n = s.size()/2;
	ll ans = 0;
	for(int i = 0 ;i < 2*n ; i++){
		for(int j = i+1;j < 2*n ; j++){
			if(s[j]+s[i] == 0){
				if(s[i]>0){
					ans+= j-i;
				}else {
					ans+=j-i-1;
				}
				s.erase(s.begin()+j);
				break;
			}
		}
	}
	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