제출 #796318

#제출 시각아이디문제언어결과실행 시간메모리
796318TheSahibUnscrambling a Messy Bug (IOI16_messy)C++14
70 / 100
1 ms468 KiB
#include "messy.h" #include <bits/stdc++.h> using namespace std; string s; int N; void f1(int l, int r){ int mid = (l + r) / 2; fill(s.begin(), s.end(), '1'); for (int i = l; i <= r; i++) { s[i] = '0'; } for(int i = l; i <= mid; ++i){ s[i] = '1'; add_element(s); s[i] = '0'; } if(l == r) return; f1(mid + 1, r); f1(l, mid); } vector<int> ans; void f2(int l, int r){ int mid = (l + r) / 2; fill(s.begin(), s.end(), '0'); for (int i = 0; i < N; i++) { if(ans[i] == -1) continue; s[ans[i]] = '1'; } int p = l; for (int i = 0; i < N; i++) { if(s[i] == '1') continue; s[i] = '1'; if(check_element(s)) ans[p++] = i; s[i] = '0'; } if(l == r) return; f2(mid + 1, r); fill(ans.begin() + l, ans.begin() + mid + 1, -1); f2(l, mid); } vector<int> restore_permutation(int n, int w, int r) { N = n; ans.resize(n, -1); s.resize(n); f1(0, n - 1); compile_set(); f2(0, n - 1); vector<int> tmp(N); for (int i = 0; i < N; i++) { tmp[ans[i]] = i; } return tmp; }
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