SIGABRT Error during runtime (c++) - c++

Question

This is the skyscraper floors problem from spoj. I m getting SIGABRT when I run the code.Link for the problem is http://www.spoj.com/problems/SCRAPER/. When I run this code on my PC, it runs without any error but spoj's online judge shows SIGABRT error.
#include <iostream>
#include <vector>
using namespace std;
struct floor
{
unsigned int floornum;
bool calldone;
vector <floor*> connection;
floor()
{
floornum=0;
calldone=0;
}
};
struct elevator
{
unsigned int x,y;
elevator()
{
x=y=0;
}
};
struct skyscrapper
{
unsigned int f,e,a,b;
vector <elevator> ele;
vector <floor*> flooraddress; //this is a spoj problem
void read()
{
cin>>f>>e>>a>>b;
elevator *temp;
for(unsigned int i=0;i<e;i++)
{
temp=new elevator;
cin>>(*temp).x>>(*temp).y;
ele.push_back(*temp);
}
for (unsigned int i=0;i<f;i++)
{
floor* tempp=new floor;
(*tempp).floornum=i;
flooraddress.push_back(tempp);
}
}
void allotaddress()
{
unsigned int j,k;
for(unsigned int i=0;i<ele.size();i++)
{
j=ele[i].y;
k=ele[i].x;
while(j<f)
{
if(j!=ele[i].y)
{
(*(flooraddress[j])).connection.push_back(flooraddress[j-k]);
(*(flooraddress[j-k])).connection.push_back(flooraddress[j]);
}
j=j+k;
}
}
}
};
bool flag;
bool traverse(floor* m,int destination)
{
if((*m).calldone==1)
{
return 0;
}
(*m).calldone=1;
if((*m).floornum==destination)
return 1;
if((*m).connection.empty())
return 0;
for(int i=0;i<(*m).connection.size();i++)
{
flag=traverse(((*m).connection[i]),destination);
if(flag==1)
return flag;
}
return 0;
}
int main()
{
int n;
cin>>n;
skyscrapper iit[n];
bool ans[n];
for(int i=0;i<n;i++)
{
iit[i].read();
iit[i].allotaddress();
ans[i]=traverse(iit[i].flooraddress[iit[i].a],iit[i].b);
}
for(int i=0;i<n;i++)
{
if(ans[i]==1)
cout<<"It is possible to move the furniture."<<endl;
else
cout<<"The furniture cannot be moved."<<endl;
}
return 0;
}