百练 2000 Gold Coins

题目链接：http://bailian.openjudge.cn/practice/2000

# include <stdio.h>int main(){int n,i,j,t,sum;while(scanf("%d",&n)!=EOF){if(n==0)break;sum=1;t=2;i=1;while(i!=n){for(j=0;j<t;j++){sum=sum+t;i++;if(i==n)break;}t++;}printf("%d %d\n",n,sum);}return 0;}