POJ 1032

#include<iostream>
using namespace std;
int main()
{
    int n;
    int num;
    int sum=0;
    int i,j;
    cin>>num;

    for(i=2;;i++){   
        sum+=i;
        if(num-sum==i+1){
            for(j=2;j<=i+1;j++)
                cout<<j<<" ";
            break;
        }
        if(num-sum<i){
           n=i-num+sum;
           for(j=2;j<=i;j++)
               if(j>n)
                   cout<<j+1<<" ";
               else
                   cout<<j<<" ";
               break;
        }
        else if(num-sum==i){
            for(j=2;j<i;j++)
                cout<<j+1<<" ";
            cout<<i+2;
            break;
        }
        
    }

    return 0;
}