제출 #1215818

#제출 시각아이디문제언어결과실행 시간메모리
1215818szz0liArranging Shoes (IOI19_shoes)C++20
30 / 100
1097 ms4032 KiB
#include "shoes.h" #include <bits/stdc++.h> using namespace std; long long count_swaps(vector<int> s) { int ans=INT_MAX/2; int n=s.size()/2; vector<int> perm; for(int i=0;i<n*2;i++){ if(s[i]<0)perm.push_back(abs(s[i])); } sort(perm.begin(), perm.end()); do{ int cnt=0; vector<int> helyes(2*n), copi=s; for(int i=0;i<n;i++){ helyes[2*i]=-1*perm[i]; helyes[2*i+1]=perm[i]; } for(int i=0;i<2*n;i++){ for(int j=i;j<2*n;j++){ if(copi[j]==helyes[i]){ while(j!=i){ swap(copi[j], copi[j-1]); j--; cnt++; } break; } } } ans=min(ans, cnt); } while(next_permutation(perm.begin(), perm.end())); return ans; }
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