제출 #1100478

#제출 시각아이디문제언어결과실행 시간메모리
1100478LuvidiUnscrambling a Messy Bug (IOI16_messy)C++17
100 / 100
2 ms760 KiB
#include <vector> #include <bits/stdc++.h> #include "messy.h" using namespace std; mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count()); int n; vector<int> ans; void dnc1(int l,int r){ if(l==r)return; string s; for(int i=0;i<n;i++){ if(i<l||i>r)s+='1'; else s+='0'; } int m=(l+r)/2; for(int x=l;x<=m;x++){ s[x]='1'; add_element(s); s[x]='0'; } dnc1(l,m); dnc1(m+1,r); } void dnc2(vector<int> v,int l,int r){ if(l==r){ ans[v[0]]=l; return; } string s; for(int i=0;i<n;i++)s+='1'; for(int x:v)s[x]='0'; int m=(l+r)/2; vector<int> v1,v2; for(int x:v){ s[x]='1'; if(check_element(s)){ v1.push_back(x); } s[x]='0'; } for(int i:v){ bool b=0; for(int j:v1)b|=i==j; if(!b)v2.push_back(i); } dnc2(v1,l,m); dnc2(v2,m+1,r); } std::vector<int> restore_permutation(int N, int w, int r) { n=N; ans.resize(n); dnc1(0,n-1); compile_set(); vector<int> v(n); iota(begin(v),end(v),0); dnc2(v,0,n-1); return ans; }
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