Submission #168968

#	Time	Username	Problem	Language	Result	Execution time	Memory
168968		pulpy_orange	Arranging Shoes (IOI19_shoes)	C++17	Compilation error	0 ms	0 KiB

shoes

#include<bits/stdc++.h>
using namespace std;
#define int long long

int32_t main(){
     int n;
     cin>>n;

     n=2*n;
     int S[n];
     for(int i=0;i<n;i++)cin>>S[i];

     int ans=0;
     int vis[n];
     memset(vis, 0, sizeof(vis));

     for(int i=0;i<n;i++){
          if(vis[i])continue;
          int curr=S[i];
          vis[i]=1;
          if(curr<0){
               for(int j=i+1;j<n;j++){
                    if(!vis[j] and S[j]>0 and curr==-1*S[j]){
                         vis[j]=1;
                         ans+=(j-1-i);
                         break;
                    }
               }
          }
          else{
               for(int j=i+1;j<n;j++){
                    if(!vis[j] and S[j]<0 and curr==-1*S[j]){
                         vis[j]=1;
                         ans+=(j-i);
                         break;
                    }
               }
          }
     }
     cout<<ans;
}

Compilation message (stderr)

/tmp/cclEszgC.o: In function `main':
grader.cpp:(.text.startup+0x0): multiple definition of `main'
/tmp/ccYKamLj.o:shoes.cpp:(.text.startup+0x0): first defined here
/tmp/cclEszgC.o: In function `main':
grader.cpp:(.text.startup+0x282): undefined reference to `count_swaps(std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status