제출 #888547

#제출 시각아이디문제언어결과실행 시간메모리
888547Lincito_31Arranging Shoes (IOI19_shoes)C++14
10 / 100
1095 ms5812 KiB
using namespace std;
#include <bits/stdc++.h>
#include "shoes.h"
long long x;
long long count_swaps(vector<int> s) {
	//x=s.size();
	//x/=2;
	/*if(x==1){
        return s[0]<0?0:1;
	}else{
	    x=x*(x-1)/2;
        return x;
	*/
	while(!s.empty()){
        long long i=0;
        while(s[i]>0){
            i++;
        }
        x+=i;
        long long abso=-1*s[i];
        vector<int> ant(s.begin(),s.begin()+i);
        vector<int> pos(s.begin()+i+1,s.end());
        ant.insert(ant.end(),pos.begin(),pos.end());
        s=ant;
        i=0;
        while(s[i]!=abso){
            i++;
        }
        x+=i;
        vector<int> ante(s.begin(),s.begin()+i);
        vector<int> post(s.begin()+i+1,s.end());
        ante.insert(ante.end(),post.begin(),post.end());
        s=ante;
	}
	return x;
}
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