文件名称：ACM第1001题答案
文件大小：202B
文件格式：C
更新时间：2018-10-30 10:05:30
ACM C语言
ACM第1001题的答案，计算1到N的和。 Input: The input will consist of a series of integers n, one integer per line. Output: For each case, output SUM(n) in one line, followed by a blank line. You may assume the result will be in the range of 32-bit signed integer.