제출 #1334438

#제출 시각아이디문제언어결과실행 시간메모리
1334438yc11Arranging Shoes (IOI19_shoes)C++20
45 / 100
14 ms1960 KiB
#include<bits/stdc++.h>
using namespace std;
int64_t count_swaps(vector<int> S){
  int64_t l = 0;
    int64_t r = 0;
    int64_t ans = 0;
    for (int i = 0;i<S.size();i++){

        if (S[i]>0) { r++;ans = ans+max((int64_t)0,l-r);}
        else {l++;ans = ans+max((int64_t)0,r-l+1);}

    }
    return ans;
}
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