百度之星2005初赛第一题答案

#include <stdio.h>
#include <stdlib.h>
#define N 20

int main()
{
    int flags=0;
    int count=0;
    int i;
    int j;
    int k;;
    int sum=0;
    int end=0;
    for(i=1;i<N;i++)
    {
        //printf("This time i is %d\n",i);

        sum += i;
        for(j=i+1;j<N && sum<N;j++)
        {
            sum += j;
            if(sum == N)
            {
                end=j;
                break;
            }//else if(sum > n)

                
        }
        //printf("sum >n\n");

        sum = 0;
        if((end==0)) continue;
            else
        {
            count=i;
            for(k=0;k<=end-i;k++)
            {printf("%d ",count++);}
            flags=1;
            printf("\n");
       }
        end=0;sum=0;
        
    
    }
    if (flags==0)
            printf("NONE\n");
return 0;

}