제출 #172176

#제출 시각아이디문제언어결과실행 시간메모리
172176dsjongArranging Shoes (IOI19_shoes)C++14
10 / 100
1080 ms3064 KiB
#include "shoes.h"
#include <bits/stdc++.h>
using namespace std;

long long count_swaps(vector<int> s) {
	int n=s.size();
	int cnt=0;
	for(int i=0;i<n;i++){
		//cout<<i<<endl;
		if(s[i]<0){
			for(int j=0;j<n;j++){
				if(s[j]+s[i]==0&&!(s[j]+s[j-1]==0&&j<i)){
					int cur=j;
					if(cur==i+1) break;
					if(cur>i){
						while(cur!=i+1){
							swap(s[cur],s[cur-1]);
							//cout<<cur<<" "<<cur-1<<endl;
							cur--;
							cnt++;
						}
					}
					else{
						while(cur!=i){
							swap(s[cur],s[cur+1]);
							//cout<<cur<<" "<<cur+1<<endl;
							cur++;
							cnt++;
						}
					}
					break;
				}
			}
		}
	}
	return cnt;
}
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