제출 #296593

#제출 시각아이디문제언어결과실행 시간메모리
296593zoooma13Arranging Shoes (IOI19_shoes)C++14
50 / 100
1096 ms3192 KiB
#include "bits/stdc++.h"
#include "shoes.h"
using namespace std;

long long count_swaps(vector<int> s) {
    long long ans = 0;
    while(!s.empty()){
        int x = s.front();
        int i = find(s.begin() ,s.end() ,-x)-s.begin();
        ans += i-(x < 0);
        s.erase(s.begin()+i);
        s.erase(s.begin());
    }
    return ans;
}
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