Submission #1290693

#	Time	Username	Problem	Language	Result	Execution time	Memory
1290693		Sofiatpc	Arranging Shoes (IOI19_shoes)	C++20	50 / 100	1095 ms	1972 KiB

shoes

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

using namespace std;

long long count_swaps(vector<int> s) {
	long long ans = 0;
	for(int i = 0; i < s.size(); i+=2){
		if(s[i] > 0){
			for(int j = i+1; j < s.size(); j++)
				if(s[j] == -s[i]){
					for(int k = j-1; k >= i; k--){
						swap(s[k],s[k+1]);
						ans++;
					}
					break;
				}
		}else{
			for(int j = i+1; j < s.size(); j++)
				if(s[j] == -s[i]){
					for(int k = j-1; k > i; k--){
						swap(s[k],s[k+1]);
						ans++;
					}
					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