제출 #397884

#제출 시각아이디문제언어결과실행 시간메모리
397884snasibov05Arranging Shoes (IOI19_shoes)C++14
45 / 100
49 ms7516 KiB
#include "shoes.h"
#include <bits/stdc++.h>

using namespace std;

long long count_swaps(vector<int> s) {

    long long ans = 0;
    int n = s.size();
    set<int> st;
    for (int i = 1; i < n; i += 2) {
        if (s[i] < 0) st.insert(i);
    }

    for (int i = 0; i < n; i += 2) {
        if (s[i] < 0) continue;
        ans += abs(*st.begin() - i);
        st.erase(st.begin());
    }

    return ans;

}
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