제출 #240823

#제출 시각아이디문제언어결과실행 시간메모리
240823zoomswkArranging Shoes (IOI19_shoes)C++17
50 / 100
1091 ms3192 KiB
#include "shoes.h"
using namespace std;
 
long long count_swaps(std::vector<int> s) {
	int n = (int)s.size();
	long long res = 0;
	for(int i=0; i<n; i+=2){
		int loc = -1;
		for(int j=i+1; j<n; j++) if(s[j] == -s[i]){ loc = j; break; }
		while(loc > i+1){
			swap(s[loc], s[loc-1]);
			loc--;
			res++;
		}
		if(s[i] > 0) res++;
	}
	return res;
}
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