poj 1032 Parliament

#include<iostream>using namespace std;int main(){    int n;    int sum=2;    cin>>n;    int i;    for(i=3;;i++)    {if((sum<=n)&&(sum+i>n)){ break;}sum+=i;    }    if(sum==n)    {   for(int j=2;j<=i-1;j++)      cout<<j<<" ";    }    else if((n-sum)==(i-1))    {         int j;         for(j=2;j<=i-1;j++)         {    if(j==i-1)    {       cout<<j+2<<" ";       break;    }    cout<<j+1<<" ";         }    }    else if((n-sum)<(i-1))    {         int k=n-sum;         int k1=i-k;         for(int j=2;j<=i-1;j++)         {     if(j>=k1)     {   cout<<j+1<<" ";     }      else     {    cout<<j<<" ";     }         }    }    return 0;}