제출 #305955

#제출 시각아이디문제언어결과실행 시간메모리
305955amunduzbaevArranging Shoes (IOI19_shoes)C++14
10 / 100
1083 ms384 KiB
#include "shoes.h"
#include <bits/stdc++.h>
//#include "grader.cpp"
using namespace std;

long long count_swaps(vector<int> a) {
    int n=a.size();

    long long ns=0;
    for(int i=0;i<n;i++){
        if(a[i]<0){
            if(a[i+1]==a[i]*-1){
                i++;
                continue;
            }
            int j=i+1;
            while(a[j]!=a[j-1]*-1){
                swap(a[j],a[j-1]);
                j++;
                ns++;
            }
            i--;

        }else{
            if(a[i-1]==a[i]*-1&&i>0){
                continue;
            }
            int j=i+1;
            while(a[j]!=a[j-1]*-1){
                swap(a[j],a[j-1]);
                j++;
                ns++;
            }
            swap(a[j],a[j-1]);
            ns++;
            i--;
        }
    }
	return ns;
}
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