Submission #609693

#	Time	Username	Problem	Language	Result	Execution time	Memory
609693		sword060	Unscrambling a Messy Bug (IOI16_messy)	C++17	Compilation error	0 ms	0 KiB

messy

#include <bits/stdc++.h>
using namespace std;
vector<int> restore_permutation(int x, int w, int r){
  vector<int> ans(x);
  for(int i=0;i<x;i++)ans[i]=i+1;
  string p="";
  for(int i=0;i<x;i++)p+='0';
  for(int i=0;i<p.size();i++){
    p[i]='1';
    add_element(p);
  }
  compile_set();
  for(int i=1;i<=(1LL<<x);i++){
    string l="";
    int xd=i,zz=8;
    while(zz--)l+=(xd%2?'1':'0'),xd/=2;
    reverse(l.begin(),l.end());
    bool f=check_element(l);
    if(!f)continue;
    for(int i=0;i<x;i++){
      if(l[i]!='1'||i==x-1||l[i+1]=='1')continue;
      for(int j=x-1;j>=i+2;j--){
        if(l[j]=='0'){
          swap(ans[j],ans[i]);
          return ans;
        }
      }
    }
  }
  return ans;
}

Compilation message (stderr)

messy.cpp: In function 'std::vector<int> restore_permutation(int, int, int)':
messy.cpp:8:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |   for(int i=0;i<p.size();i++){
      |               ~^~~~~~~~~
messy.cpp:10:5: error: 'add_element' was not declared in this scope
   10 |     add_element(p);
      |     ^~~~~~~~~~~
messy.cpp:12:3: error: 'compile_set' was not declared in this scope
   12 |   compile_set();
      |   ^~~~~~~~~~~
messy.cpp:18:12: error: 'check_element' was not declared in this scope
   18 |     bool f=check_element(l);
      |            ^~~~~~~~~~~~~