Sum Problem
Time Limit: 1000/500 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 275913 Accepted Submission(s): 68867
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
Sample Output
#include<stdio.h>
int main()
{
int n;
while(scanf("%d",&n)!=EOF)
{
int i,sum=0;
for(i=1;i<=n;i++)
{
sum+=i;
}
printf("%d\n",sum);
printf("\n");
}
return 0;
}
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HDOJ 1001 Sum Problem
原文：http://blog.csdn.net/qq_16767427/article/details/38013133
