제출 #332362

#제출 시각아이디문제언어결과실행 시간메모리
332362nicholaskArranging Shoes (IOI19_shoes)C++14
50 / 100
1097 ms2924 KiB
#include "shoes.h" #include <bits/stdc++.h> using namespace std; long long count_swaps(vector <int> s){ int n=(s.size()>>1); // if (n<=1000){ long long ans=0; for (int i=0; i<n+n; i+=2){ int wh; for (int j=1; ; j++){ if (s[0]*-1==s[j]){ wh=j; break; } } if (s[0]>0) ans++; ans+=wh-1; s.erase(s.begin()+wh); s.erase(s.begin()); } return ans; // } } /* signed main(){ int n; cin>>n; vector <int> v(n); for (int i=0; i<n; i++) cin>>v[i]; cout<<count_swaps(v); } */
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