Submission #609750

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
609750	2022-07-27T20:42:48 Z	sword060	Unscrambling a Messy Bug (IOI16_messy)	C++17	Compilation error	0 ms	0 KB

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()-1;i++){
    p[i]='1';p[i+1]='1';
    add_element(p);
    p[i]='0';p[i+1]='0';
  }
  compile_set();
  string lst="-1";
  bool m=0;
  for(int i=1;i<=min(r,(1<<x));i++){
    string l="";
    int xd=i,zz=x;
    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=i+2;j<x;j++){
        if(l[j]=='1'){
          swap(ans[j],ans[i+1]);
        }
      }
    }
    lst=l;
  }
  return ans;
}

Compilation message

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()-1;i++){
      |               ~^~~~~~~~~~~
messy.cpp:10:5: error: 'add_element' was not declared in this scope
   10 |     add_element(p);
      |     ^~~~~~~~~~~
messy.cpp:13:3: error: 'compile_set' was not declared in this scope
   13 |   compile_set();
      |   ^~~~~~~~~~~
messy.cpp:21:12: error: 'check_element' was not declared in this scope
   21 |     bool f=check_element(l);
      |            ^~~~~~~~~~~~~
messy.cpp:15:8: warning: unused variable 'm' [-Wunused-variable]
   15 |   bool m=0;
      |        ^