Submission #143986

#	Time	Username	Problem	Language	Result	Execution time	Memory
143986		Nucleist	Arranging Shoes (IOI19_shoes)	C++14	Compilation error	0 ms	0 KiB

shoes

#include <bits/stdc++.h>
#include "shoes.h" 
using namespace std; 
#define flash ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
#define debug(x) cerr << " - " << #x << ": " << x << endl;
#define debugs(x, y) cerr << " - " << #x << ": " << x << " " << #y << ": " << y << endl;
#define all(x) (x).begin(),(x).end()
#define sz(x) (ll)x.size()
#define ll long long
#define INF 1000000000
#define pb push_back
struct greateri
{
    template<class T>
    bool operator()(T const &a, T const &b) const { return a > b; }
};
ll count_swaps(vector<int>S)
{
  //flash;
  ll ans=0;
  ll index=0;
  int n=S.size()/2;
  for (int i = 0; i < 2*n; i+=2)
  {
    for (int j = i+1; j < 2*n; ++j)
    {
      if(gg[j]==(-gg[i]))
      {
        int nexi=j;
        while(gg[i+1]!=(-gg[i]))
        {
          int k = gg[nexi-1];
          gg[nexi-1]=gg[nexi];
          gg[nexi]=k;
          nexi--;
          ans++;
        }
        break;  
      }
    }
    if(gg[i]>0)
    {
      int yo=gg[i];
      gg[i]=gg[i+1];
      gg[i+1]=yo;
      ans++;
    }
  }
  return ans;
}
//code the AC sol !
// BS/queue/map

Compilation message (stderr)

shoes.cpp: In function 'long long int count_swaps(std::vector<int>)':
shoes.cpp:27:10: error: 'gg' was not declared in this scope
       if(gg[j]==(-gg[i]))
          ^~
shoes.cpp:41:8: error: 'gg' was not declared in this scope
     if(gg[i]>0)
        ^~
shoes.cpp:21:6: warning: unused variable 'index' [-Wunused-variable]
   ll index=0;
      ^~~~~