Question

设计一个求1+3+5+7+……+31的算法,并画出程序框图

1. 设计一个求1+3+5+7+……+31的算法,并画出程序框图 2. 设计一个算法 求1^2+2^2+……+99^2+100^2

Answer 1

Read i,s i＝1 s＝0 While i<＝31 s＝s+i i＝i+2 End while print s Read i,s i＝1 s＝0 While i＜＝100 s＝s+i*i i＝i+1 End while print s 手机没法画图啊，抱歉

Answer 2

1#include "stdio.h"
main()
{
int a,n,sum;
scanf("%d",&n);
for (a=1;a<=n;a++)
if (a%2==0)
printf("/n");
else
sum+=a;
printf("sum=%d",sum);
}
2.

#include "stdio.h"
main()
{
int a=0,sum=0;
do
{
sum+=2*a;
a++;
} while (a<=100);
printf("sum=%d",sum);
}

Answer 3

不难阿.