大师作文网c语言编程sum problem
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c语言编程sum problem
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
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
#include
void main()
{
int i,j,n,sum=0;
printf("输入计算组数i: ");
scanf("%d",&i);
printf("\n");
while(i--)
{
scanf("%d",&n);
for(j=1;j
void main()
{
int i,j,n,sum=0;
printf("输入计算组数i: ");
scanf("%d",&i);
printf("\n");
while(i--)
{
scanf("%d",&n);
for(j=1;j