Submission #157593

#TimeUsernameProblemLanguageResultExecution timeMemory
157593dennisstarUnscrambling a Messy Bug (IOI16_messy)C++11
100 / 100
4 ms520 KiB
#include <bits/stdc++.h> #include "messy.h" using namespace std; int s[150], e[150]; int n, cnt; void f(int st, int re) { if (re==st+1) return ; int md=(st+re)/2, i; string S; S=""; for (i=0; i<n; i++) S.push_back('1'); for (i=0; i<n; i++) { if (s[i]<=st&&re<=e[i]) S[i]='0'; } for (i=0; i<n; i++) { if (s[i]<=st&&re<=e[i]) { S[i]='1'; cnt++; if (check_element(S)) { s[i]=st; e[i]=md; } else { s[i]=md; e[i]=re; } S[i]='0'; } } f(st,md); f(md, re); } vector<int> restore_permutation(int N, int w, int r) { n=N; int i, j, k; string S; for (i=1; (1<<i)<=n; i++) { for (j=0; j*(1<<i)<n; j++) { S=""; for (k=0; k<n; k++) S.push_back('1'); for (k=(1<<i)*j; k<(1<<i)*(j+1); k++) S[k]='0'; for (k=(1<<i)*j; k<(1<<i)*j+(1<<(i-1)); k++) { S[k]='1'; add_element(S); S[k]='0'; } } } compile_set(); for (i=0; i<n; i++) e[i]=n; f(0, n); vector<int> ans; ans.resize(n); for (i=0; i<n; i++) ans[i]=s[i]; return ans; }
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