c语言加法运算

# include <stdio.h>
void main()
{
int i, n, sum1 = 0, sum2 = 0;
printf("请输入一个正整数：");

scanf("%d", &n);

for(i = 1; i <= n; i++)

{
if(i % 2 == 1)

sum1 += i;

else

sum2 += i;

}

printf("1到%d之间的奇数和为：%d\n", n, sum1);

printf("1到%d之间的偶数和为：%d\n", n, sum2);