Submission #1355586

#	Time	Username	Problem	Language	Result	Execution time	Memory
1355586		Charizard2021	Arranging Shoes (IOI19_shoes)	C++20	10 / 100	1095 ms	1960 KiB

shoes

#include "shoes.h"
#include<bits/stdc++.h>
using namespace std;
long long count_swaps(vector<int> s){
	long long n = (long long)s.size()/2;
	long long ans = 0;
	for(int i = 0; i < n; i++){
		for(int j = 2 * i; j < 2 * n; j++){
			if(s[j] < 0){
				ans += (j - 2 * i);
				break;
			}
		}
		for(int j = 2 * i; j < 2 * n; j++){
			if(s[j] == -s[2 * i]){
				ans += (j - (2 * i + 1));
				break;
			}
		}
	}
	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