Submission #637639

#TimeUsernameProblemLanguageResultExecution timeMemory
637639ggohUnscrambling a Messy Bug (IOI16_messy)C++14
49 / 100
2 ms340 KiB
#include "messy.h" #include<bits/stdc++.h> using namespace std; #define sz(v) ((int)(v).size()) typedef long long lint; bool C; int ch[128],p; vector<int> restore_permutation(int n, int w, int r) { vector<int>ans; vector<int>rev; for(int i=0;i<n;i++) { ans.push_back(i); rev.push_back(i); } string a[129],b; for(int i=0;i<n;i++) { a[0]+='0'; a[n]+='1'; } a[0][0]='1'; add_element(a[0]); a[0][0]='0'; for(int i=2;i<n;i+=2) { for(int j=0;j<i;j++)a[i]+='1'; for(int j=i;j<n;j++)a[i]+='0'; add_element(a[i]); swap(a[i][i-1],a[i][i]); add_element(a[i]); a[n][i-1]='0'; add_element(a[n]); a[n][i-1]='1'; } compile_set(); p=0; for(int i=0;i<n-1;i++) { b=a[0]; b[i]='1'; if(check_element(b)) { p=1; rev[0]=i; break; } } if(!p)rev[0]=n-1; for(int i=2;i<n;i+=2) { b=a[0]; for(int j=0;j<i-1;j++) { b[rev[j]]='1'; } vector<int>h; for(int j=0;j<n;j++) { if(b[j]!='1') { b[j]='1'; if(check_element(b)) { h.push_back(j); } b[j]='0'; } } a[n][h[0]]='0'; if(check_element(a[n])) { rev[i-1]=h[0]; rev[i]=h[1]; } else { rev[i]=h[0]; rev[i-1]=h[1]; } a[n][h[0]]='1'; } for(int i=0;i<n-1;i++)ch[rev[i]]=1; for(int i=0;i<n;i++)if(ch[i]==0)rev[n-1]=i; for(int i=0;i<n;i++)ans[rev[i]]=i; return ans; }
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