Submission #418485

#	Time	Username	Problem	Language	Result	Execution time	Memory
418485		Autumn	Arranging Shoes (IOI19_shoes)	C++17	10 / 100	1 ms	204 KiB

shoes

#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;

long long count_swaps(std::vector<int> s) {
	int n=s.size();
	if(n==2){
		if(s[0]<0)return 0;
		return 1;
	}
	n/=2;
	int sum=0;
	for(int i=n;i>0;i-=2){
		sum+=i;
	}
	return sum;
}

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