学帮网Problem DescriptionHey,welcome to HDOJ(Hangzhou Dianzi University Online Judge).In this problem,your task is to calculate SUM(n) = 1 + 2 + 3 + ...+ n.InputThe input will consist of a series of integers n,one integer per line.OutputFor each case,outpu
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Problem Description
Hey,welcome to HDOJ(Hangzhou Dianzi University Online Judge).
In this problem,your task is to calculate SUM(n) = 1 + 2 + 3 + ...+ n.
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.
Sample Input
1
100
Sample Output
1
5050
you can use visual foxpro to solve that problem.
problem
No problem
no problem
No problem
No problem
have problem
No problem.
problem是什么意思
main problem
problem是什么意思
process problem
problem是什么意思?
problem是什么意思?
Grammar problem
breath problem or breathing problem ?
英语翻译health problem 还是healthy problem 为什么
problem可数吗?difficulties and problem对吗?
no problem中文意思