제출 #540208

#제출 시각아이디문제언어결과실행 시간메모리
540208beaconmcArranging Shoes (IOI19_shoes)C++14
45 / 100
39 ms3156 KiB
#include <bits/stdc++.h>

typedef long long ll;
#define FOR(i,x,y) for(ll i=x; i<y; i++)
using namespace std;

long long count_swaps(vector<int> S) {
    ll n = S.size();
    ll cur = 0;
    ll ans = 0;
    FOR(i,0,n){
        if (S[i] < 0){
            ans += abs(i-cur);
            cur += 2;

        }
    }
    return ans;
}
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